{"id":823,"date":"2026-04-08T03:07:36","date_gmt":"2026-04-08T03:07:36","guid":{"rendered":"https:\/\/industrialsafetysensor.com\/?page_id=823"},"modified":"2026-04-09T08:36:44","modified_gmt":"2026-04-09T08:36:44","slug":"type-4-safety-light-curtain","status":"publish","type":"page","link":"https:\/\/industrialsafetysensor.com\/fr\/safety-light-curtains\/type-4-safety-light-curtain\/","title":{"rendered":"Rideau lumineux de s\u00e9curit\u00e9 de type 4"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-a1470e2\" data-block-id=\"a1470e2\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-a1470e2-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-a6d4556\" data-v=\"4\" data-block-id=\"a6d4556\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a6d4556-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a6d4556-inner-blocks\">\n<style>\n\/* =========================================\n   3. Aesthetics & Fonts (\u4fdd\u6301\u4e0d\u53d8)\n   ========================================= *\/\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;500;700;800&display=swap');\n\n\/* =========================================\n   1. Highest Level of Scope - \u3010\u6df1\u8272\u7f51\u683c+\u6298\u53e0\u4ea4\u4e92\u7248\u3011\n   ========================================= *\/\n#b2b-safety-curtain-pro {\n    width: 100% !important;\n    padding: 40px 0 !important; \n    background-color: #0f1115 !important; \n    background-image: \n        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),\n        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px) !important;\n    background-size: 40px 40px !important; \n    background-position: center center !important;\n    font-family: 'Inter', sans-serif !important;\n    box-sizing: border-box !important;\n    overflow: hidden !important; \/* \u9632\u6b62\u56fe\u7247\u60ac\u6d6e\u79fb\u51fa\u5bb9\u5668 *\/\n}\n\n#b2b-safety-curtain-pro * {\n    box-sizing: border-box !important;\n}\n\n\/* =========================================\n   4. Layout: \u6587\u5b57\u4e0e\u5806\u53e0\u5bb9\u5668\n   ========================================= *\/\n#b2b-safety-curtain-pro .grid-container {\n    max-width: 1440px !important; \n    margin: 0 auto !important;\n    padding: 0 40px !important;\n    display: grid !important;\n    grid-template-columns: repeat(12, 1fr) !important;\n    gap: 40px !important;\n    align-items: center !important; \n}\n\n\/* \u5de6\u4fa7\u6587\u5b57\u4e0e\u53c2\u6570\u533a - \u7f29\u7d27\u4e3a 5 \u5217\uff0c\u817e\u51fa\u66f4\u591a\u7a7a\u95f4\u7ed9\u56fe\u7247\u52a8\u6548 *\/\n#b2b-safety-curtain-pro .content-area {\n    grid-column: 1 \/ 6 !important;\n    display: flex !important;\n    flex-direction: column !important;\n    gap: 22px !important;\n    z-index: 10 !important; \/* \u786e\u4fdd\u6587\u5b57\u59cb\u7ec8\u5728\u56fe\u7247\u4e0a\u65b9 *\/\n}\n\n\/* \u53f3\u4fa7\u56fe\u50cf\u5806\u53e0\u5bb9\u5668 - \u5360 7 \u5217 *\/\n#b2b-safety-curtain-pro .visual-stack-container {\n    grid-column: 6 \/ -1 !important;\n    position: relative !important;\n    height: 450px !important; \/* \u786e\u7acb\u7edd\u5bf9\u5b9a\u4f4d\u7684\u9ad8\u5ea6\u57fa\u51c6 *\/\n    display: flex !important;\n    align-items: center !important;\n    justify-content: center !important;\n    perspective: 1000px !important; \/* \u589e\u52a0 3D \u89c6\u8ddd\u611f *\/\n}\n\n\/* =========================================\n   \u4ea4\u4e92\u6838\u5fc3 CSS\uff1a\u9519\u4f4d\u5806\u53e0\u4e0e\u60ac\u6d6e\u903b\u8f91\n   ========================================= *\/\n#b2b-safety-curtain-pro .img-stack-card {\n    position: absolute !important;\n    background-color: rgba(255, 255, 255, 0.02) !important; \n    border: 1px solid rgba(255, 255, 255, 0.08) !important; \n    box-shadow: 0 10px 30px rgba(0,0,0,0.5) !important; \/* \u589e\u52a0\u9634\u5f71\u4f53\u73b0\u5c42\u7ea7 *\/\n    border-radius: 4px !important; \n    padding: 15px !important;\n    display: flex !important;\n    align-items: center !important;\n    justify-content: center !important;\n    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1) !important; \/* \u9ad8\u7ea7\u51cf\u901f\u66f2\u7ebf *\/\n    will-change: transform, z-index, box-shadow !important; \/* \u6027\u80fd\u4f18\u5316 *\/\n    cursor: pointer !important;\n}\n\n#b2b-safety-curtain-pro .img-stack-card img {\n    width: auto !important;\n    height: auto !important;\n    max-width: 100% !important;\n    max-height: 380px !important;\n    object-fit: contain !important; \n}\n\n\/* --- \u5361\u7247 1\uff1a\u4e3b\u4ea7\u54c1\u56fe (\u4f4d\u4e8e\u524d\u65b9) --- *\/\n#b2b-safety-curtain-pro .card-main {\n    z-index: 3 !important;\n    transform: translateX(-30px) translateZ(0) !important; \/* \u521d\u59cb\u7565\u5fae\u9760\u5de6 *\/\n    width: 70% !important; \/* \u9650\u5236\u5bbd\u5ea6\u4ee5\u663e\u51fa\u5c42\u6b21 *\/\n}\n\n\/* --- \u5361\u7247 2\uff1a\u89c4\u683c\u56fe (\u4f4d\u4e8e\u540e\u65b9\uff0c\u9519\u4f4d\u9732\u51fa) --- *\/\n#b2b-safety-curtain-pro .card-spec {\n    z-index: 2 !important;\n    transform: translateX(40px) translateY(20px) translateZ(-50px) !important; \/* \u9760\u53f3\u3001\u9760\u4e0b\u3001\u9760\u540e *\/\n    width: 65% !important;\n    background-color: rgba(255, 255, 255, 0.01) !important; \/* \u521d\u59cb\u66f4\u900f\u660e *\/\n    opacity: 0.8 !important; \/* \u521d\u59cb\u7565\u5fae\u900f\u660e *\/\n}\n\n\/* =========================================\n   Hover \u60ac\u6d6e\u4ea4\u4e92\u903b\u8f91\n   ========================================= *\/\n\n\/* \u573a\u666f A\uff1a\u9f20\u6807\u7ecf\u8fc7\u6574\u4e2a\u5bb9\u5668\u65f6\uff0c\u540e\u65b9\u5361\u7247\u7a0d\u5fae\u9732\u51fa\u66f4\u591a\u4ee5\u793a\u6697\u793a *\/\n#b2b-safety-curtain-pro .visual-stack-container:hover .card-spec {\n    transform: translateX(60px) translateY(10px) translateZ(-20px) !important;\n    opacity: 0.9 !important;\n}\n\n\/* \u573a\u666f B\uff1a\u9f20\u6807\u3010\u7cbe\u51c6\u7ecf\u8fc7\u524d\u65b9\u4e3b\u56fe\u3011 - \u4e3b\u56fe\u8f7b\u5fae\u653e\u5927\u60ac\u6d6e *\/\n#b2b-safety-curtain-pro .card-main:hover {\n    z-index: 5 !important;\n    transform: translateX(-30px) translateY(-10px) translateZ(20px) scale(1.03) !important;\n    border-color: rgba(255, 255, 255, 0.2) !important;\n    box-shadow: 0 20px 40px rgba(0,0,0,0.7) !important;\n}\n\n\/* \u573a\u666f C\uff1a\u9f20\u6807\u3010\u7cbe\u51c6\u7ecf\u8fc7\u540e\u65b9\u89c4\u683c\u56fe\u3011 - **\u6838\u5fc3\u52a8\u4f5c\uff1a\u62bd\u53d6\u5e76\u7f6e\u9876** *\/\n#b2b-safety-curtain-pro .card-spec:hover {\n    z-index: 5 !important; \/* \u5c42\u7ea7\u77ac\u95f4\u63d0\u5230\u6700\u524d *\/\n    transform: translateX(-20px) translateY(-15px) translateZ(30px) scale(1.05) !important; \/* \u79fb\u5230\u4e3b\u56fe\u5de6\u4e0a\u65b9\u5e76\u653e\u5927 *\/\n    background-color: rgba(255, 255, 255, 0.05) !important; \/* \u53d8\u4eae *\/\n    border-color: rgba(255, 255, 255, 0.3) !important; \/* \u8fb9\u6846\u9ad8\u4eae *\/\n    opacity: 1 !important;\n    box-shadow: 0 20px 50px rgba(0,0,0,0.8) !important;\n}\n\n\/* \u5f53\u9f20\u6807\u5728\u89c4\u683c\u56fe\u4e0a\u65f6\uff0c\u8ba9\u4e3b\u56fe\u7a0d\u5fae\u53d8\u6697\u865a\u5316\uff0c\u805a\u7126\u89c4\u683c\u56fe *\/\n#b2b-safety-curtain-pro .visual-stack-container:has(.card-spec:hover) .card-main {\n    opacity: 0.3 !important;\n    transform: translateX(-50px) translateZ(-50px) scale(0.95) !important;\n    filter: blur(2px) !important;\n}\n\n\/* =========================================\n   Typography & Elements (\u4fdd\u6301\u539f\u6709\u6697\u8272\u6837\u5f0f)\n   ========================================= *\/\n#b2b-safety-curtain-pro .title-group { display: flex !important; flex-direction: column !important; gap: 8px !important; }\n\n#b2b-safety-curtain-pro h1.main-title {\n    color: #a1a1aa !important; \n    margin: 0 !important;\n    font-weight: 800 !important;\n    letter-spacing: 0.08em !important; \n    text-transform: uppercase !important;\n    font-size: 18px !important;\n}\n\n#b2b-safety-curtain-pro h2.sub-title {\n    color: #ffffff !important; \n    margin: 0 !important;\n    font-weight: 700 !important;\n    line-height: 1.25 !important;\n    font-size: 32px !important;\n    text-shadow: 0 2px 10px rgba(0,0,0,0.5) !important; \n}\n\n#b2b-safety-curtain-pro p.desc-text {\n    color: #94a3b8 !important; \n    font-size: 16px !important;\n    line-height: 1.6 !important;\n    margin: 0 !important;\n}\n\n#b2b-safety-curtain-pro .specs-strip {\n    display: flex !important;\n    flex-wrap: wrap !important;\n    align-items: center !important;\n    background-color: rgba(255, 255, 255, 0.05) !important; \n    padding: 16px 20px !important;\n    border-left: 4px solid #ffffff !important; \n    gap: 12px 14px !important; \n}\n\n#b2b-safety-curtain-pro .spec-tag {\n    color: #e2e8f0 !important;\n    font-weight: 700 !important;\n    font-size: 13px !important;\n    text-transform: uppercase !important;\n}\n\n#b2b-safety-curtain-pro .spec-divider { color: #475569 !important; font-weight: 300 !important; }\n\n#b2b-safety-curtain-pro .btn-quote {\n    display: inline-flex !important;\n    align-items: center !important;\n    justify-content: center !important;\n    background-color: #ffffff !important;\n    color: #0f1115 !important;\n    text-decoration: none !important;\n    padding: 15px 36px !important;\n    font-weight: 800 !important;\n    text-transform: uppercase !important;\n    align-self: flex-start !important;\n    margin-top: 10px !important;\n    border: 1px solid #ffffff !important;\n    transition: 0.3s !important;\n}\n\n#b2b-safety-curtain-pro .btn-quote:hover { background-color: transparent !important; color: #ffffff !important; }\n\n\/* =========================================\n   Responsive Logic (\u79fb\u52a8\u7aef\u53d6\u6d88\u590d\u6742\u5806\u53e0)\n   ========================================= *\/\n@media (max-width:1000px) {\n    #b2b-safety-curtain-pro .content-area { grid-column: 1 \/ -1 !important; text-align: center !important; align-items: center !important; }\n    #b2b-safety-curtain-pro .btn-quote { align-self: center !important; }\n    #b2b-safety-curtain-pro .visual-stack-container { grid-column: 1 \/ -1 !important; height: 400px !important; margin-top: 30px !important; }\n}\n\n@media (max-width:690px) {\n    #b2b-safety-curtain-pro .grid-container { padding: 0 20px !important; }\n    #b2b-safety-curtain-pro .visual-stack-container { height: 320px !important; }\n    \n    \/* \u624b\u673a\u7aef\u53d6\u6d88 Hover \u62bd\u53d6\u4ea4\u4e92\uff0c\u6539\u4e3a\u7b80\u5355\u7684\u5de6\u53f3\u5e76\u5217\u6216\u8f7b\u5fae\u91cd\u53e0\uff0c\u9632\u6b62\u6ed1\u5c4f\u8bef\u89e6 *\/\n    #b2b-safety-curtain-pro .img-stack-card { width: 48% !important; position: relative !important; transform: none !important; opacity: 1 !important; top: auto !important; left: auto !important; margin: 0 1% !important;}\n    #b2b-safety-curtain-pro .visual-stack-container { display: flex !important; justify-content: space-between !important; align-items: center !important; }\n    #b2b-safety-curtain-pro .img-stack-card img { max-height: 250px !important; }\n    \n    \/* \u53d6\u6d88\u6240\u6709\u624b\u673a\u7aef\u7684 hover \u6548\u679c *\/\n    #b2b-safety-curtain-pro .visual-stack-container:hover .card-spec,\n    #b2b-safety-curtain-pro .card-main:hover,\n    #b2b-safety-curtain-pro .card-spec:hover,\n    #b2b-safety-curtain-pro .visual-stack-container:has(.card-spec:hover) .card-main {\n        transform: none !important;\n        opacity: 1 !important;\n        z-index: 2 !important;\n        filter: none !important;\n    }\n}\n<\/style>\n\n<section id=\"b2b-safety-curtain-pro\">\n    <div class=\"grid-container\">\n        \n        <div class=\"content-area\">\n            <header class=\"title-group\">\n                <h1 class=\"main-title\">Type 4 Safety Light Curtain<\/h1>\n                <h2 class=\"sub-title\">Type 4 Safety Light Curtain (SIL3\/PLe) \u2014 High-Risk Machine Protection<\/h2>\n            <\/header>\n            \n            <p class=\"desc-text\">Built for hazardous area protection on high-risk machinery, the ENT line of Type 4 safety light curtains delivers the highest ratings available \u2014 Cat.4, PLe, SIL3. Every unit carries T\u00dcV approval to IEC 61496-1,2:2020, with 14 mm\u201345 mm resolution options and detection distances reaching 70 meters.<\/p>\n            \n            <div class=\"specs-strip\">\n                <span class=\"spec-tag\">Type 4 | Cat.4<\/span>\n                <span class=\"spec-divider\">\/<\/span>\n                <span class=\"spec-tag\">SIL3 | PLe<\/span>\n                <span class=\"spec-divider\">\/<\/span>\n                <span class=\"spec-tag\">T\u00dcV Certified<\/span>\n                <span class=\"spec-divider\">\/<\/span>\n                <span class=\"spec-tag\">IP65<\/span>\n                <span class=\"spec-divider\">\/<\/span>\n                <span class=\"spec-tag\">CE Compliant<\/span>\n            <\/div>\n\n            <a href=\"#ct-popup-788\" class=\"btn-quote\">Request a Quote<\/a>\n        <\/div>\n\n        <div class=\"visual-stack-container\">\n            \n            <figure class=\"img-stack-card card-main\" style=\"margin: 0 !important;\">\n                <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Type-4-Safety-Light-Curtain.png\" alt=\"Type 4 Safety Light Curtain Unit\" fetchpriority=\"high\" width=\"800\" height=\"800\">\n            <\/figure>\n            \n            <figure class=\"img-stack-card card-spec\" style=\"margin: 0 !important;\">\n                <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Type-4-Safety-Light-Curtain1.png\" alt=\"Safety Light Curtain Specifications Grid\" loading=\"lazy\" width=\"800\" height=\"800\">\n            <\/figure>\n            \n        <\/div>\n\n    <\/div>\n<\/section>\n\n<script>\n    document.addEventListener('DOMContentLoaded', function() {\n        const quoteBtn = document.querySelector('#b2b-safety-curtain-pro .btn-quote');\n        if(quoteBtn) {\n            quoteBtn.addEventListener('click', function(e) {\n                console.log('Quote Request Triggered from Stack Hero Module');\n            });\n        }\n    });\n<\/script>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-f1c0930\" data-block-id=\"f1c0930\"><style>.stk-f1c0930 {margin-bottom:0px !important;}.stk-f1c0930-column{--stk-columns-spacing:var(--stk--preset--spacing--60, 2.25rem) !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-f1c0930-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e4923d0\" data-v=\"4\" data-block-id=\"e4923d0\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e4923d0-container stk--no-background stk--no-padding\"><div class=\"has-text-align-center stk-block-content stk-inner-blocks stk-e4923d0-inner-blocks\"><div class=\"ct-breadcrumbs\" data-source=\"rankmath\" ><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-3c5a6d0\" data-block-id=\"3c5a6d0\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-3c5a6d0-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-44f2f4d\" data-v=\"4\" data-block-id=\"44f2f4d\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-44f2f4d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-44f2f4d-inner-blocks\">\n<style>\n  \/* 3. Aesthetics & Fonts: Importing high-quality font *\/\n  @import url('https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;600;700&display=swap');\n\n  \/* 1. Highest level of Scope: All styles scoped to #type4-light-curtain-info *\/\n  #type4-light-curtain-info {\n    width: 100% !important;\n    padding: 40px 0 !important; \/* Fixed 40px padding as requested *\/\n    background-color: #ffffff !important;\n    font-family: 'Inter', sans-serif !important;\n    box-sizing: border-box !important;\n  }\n\n  #type4-light-curtain-info * {\n    box-sizing: border-box !important;\n  }\n\n  #type4-light-curtain-info .tlc-container {\n    max-width: 1200px !important;\n    margin: 0 auto !important;\n    padding: 0 20px !important;\n    display: flex !important;\n    flex-direction: column !important;\n    gap: 40px !important;\n  }\n\n  \/* User Override: Using H2\/H3 matched to Blocksy defaults *\/\n  #type4-light-curtain-info h2.tlc-main-title {\n    color: #303030 !important; \/* Main title color *\/\n    font-size: 32px !important; \/* Default title size *\/\n    font-weight: 700 !important;\n    text-align: center !important; \/* \u6807\u9898\u5c45\u4e2d *\/\n    margin: 0 0 32px 0 !important; \/* \u7a0d\u5fae\u589e\u52a0\u4e0b\u95f4\u8ddd\u4ee5\u5e73\u8861\u5c45\u4e2d\u89c6\u89c9 *\/\n    line-height: 1.3 !important;\n    \/* \u5df2\u79fb\u9664\u5de6\u4fa7 border \u548c padding *\/\n  }\n\n  #type4-light-curtain-info h3.tlc-sub-title {\n    color: #303030 !important;\n    font-size: 24px !important;\n    font-weight: 600 !important;\n    margin: 0 0 20px 0 !important;\n    line-height: 1.3 !important;\n  }\n\n  \/* 4. Layout & Frameworks: Handwritten Flexbox\/Grid *\/\n  #type4-light-curtain-info .tlc-layout-grid {\n    display: grid !important;\n    grid-template-columns: 3fr 2fr !important; \/* Asymmetric compact layout *\/\n    gap: 40px !important;\n    align-items: flex-start !important;\n  }\n\n  #type4-light-curtain-info .tlc-text-content {\n    display: flex !important;\n    flex-direction: column !important;\n    gap: 16px !important;\n  }\n\n  #type4-light-curtain-info .tlc-text-content p {\n    color: #484848 !important; \/* Secondary color for body text *\/\n    font-size: 16px !important;\n    line-height: 1.6 !important;\n    margin: 0 !important;\n    text-align: justify !important;\n  }\n\n  \/* Specifications Block *\/\n  #type4-light-curtain-info .tlc-specs-wrapper {\n    background-color: #F0F0F0 !important; \/* Light color background *\/\n    padding: 32px !important;\n    border-radius: 8px !important;\n    border-top: 4px solid #181818 !important; \/* Dark color accent *\/\n  }\n\n  #type4-light-curtain-info .tlc-specs-grid {\n    display: grid !important;\n    grid-template-columns: 1fr !important;\n    gap: 12px !important;\n  }\n\n  #type4-light-curtain-info .tlc-spec-item {\n    display: flex !important;\n    justify-content: space-between !important;\n    align-items: center !important;\n    padding: 12px 0 !important;\n    border-bottom: 1px solid rgba(48, 48, 48, 0.1) !important;\n  }\n\n  #type4-light-curtain-info .tlc-spec-item:last-child {\n    border-bottom: none !important;\n    padding-bottom: 0 !important;\n  }\n\n  #type4-light-curtain-info .tlc-spec-label {\n    color: #484848 !important;\n    font-weight: 600 !important;\n    font-size: 15px !important;\n  }\n\n  #type4-light-curtain-info .tlc-spec-value {\n    color: #181818 !important; \/* Dark color for emphasis on specs *\/\n    font-weight: 700 !important;\n    font-size: 15px !important;\n    text-align: right !important;\n  }\n\n  \/* Responsive Adjustments *\/\n  @media (max-width: 992px) {\n    #type4-light-curtain-info .tlc-layout-grid {\n      grid-template-columns: 1fr !important; \/* Stack on smaller screens *\/\n      gap: 32px !important;\n    }\n  }\n\n  @media (max-width:690px) {\n    #type4-light-curtain-info h2.tlc-main-title {\n      font-size: 28px !important;\n    }\n    #type4-light-curtain-info .tlc-specs-wrapper {\n      padding: 24px !important;\n    }\n  }\n<\/style>\n\n<section id=\"type4-light-curtain-info\">\n  <div class=\"tlc-container\">\n    \n    <h2 class=\"tlc-main-title\">Why High-Risk Machines Need Type 4 Safety Light Curtains<\/h2>\n\n    <div class=\"tlc-layout-grid\">\n      <div class=\"tlc-text-area\">\n        <div class=\"tlc-text-content\">\n          <p>Workplace accidents, injuries and fatalities resulting from unprotected and unguarded machinery are costing U.S. manufacturers alone an estimated $128 billion annually in direct and indirect costs, according to a paper published by Colorado State University. Single point-of-operation machine incidents at high-risk equipment &#8211; mechanical and hydraulic presses, robotic cells &#8211; can trigger OSHA fines, downtime and ROI loss, and in some cases, worker disability or death.<\/p>\n          <p>A Type 4 safety light curtain is a photoelectric electro-sensitive protective device (ESPE). It projects an array of infrared light beams across the danger zone, forming an invisible barrier at the machine access point. Any beam interruption \u2014 by a human finger, hand, or torso \u2014 triggers the safety circuit, commanding the machine to a complete stop within milliseconds. Unlike Type 2 devices that run periodic self-checks at fixed intervals, Type 4 units perform continuous redundant self-diagnosis with automatic crosschecking. If any internal fault occurs, the system immediately enters a safe error state and shuts down the hazardous motion.<\/p>\n          <p>An important factor when considering an environment classified as high-risk under ISO 13849-1:2023 is system capability. Type 4 carries the highest functional safety ratings \u2014 Cat.4, PLe, SIL3 \u2014 which make it the only compliant solution for machinery where a hazard analysis demands the maximum safety integrity. These light curtains protect personnel from injury at the front and back access points of any factory automation, metalworking, or packaging line setup.<\/p>\n        <\/div>\n      <\/div>\n\n      <div class=\"tlc-specs-wrapper\">\n        <h3 class=\"tlc-sub-title\">ENT Series Safety Light Curtain \u2014 Key Specifications<\/h3>\n        <div class=\"tlc-specs-grid\">\n          \n          <div class=\"tlc-spec-item\">\n            <span class=\"tlc-spec-label\">Safety Level<\/span>\n            <span class=\"tlc-spec-value\">Type 4, SIL3, PLe<\/span>\n          <\/div>\n          \n          <div class=\"tlc-spec-item\">\n            <span class=\"tlc-spec-label\">Resolution Options<\/span>\n            <span class=\"tlc-spec-value\">14 \/ 25 \/ 45 mm<\/span>\n          <\/div>\n          \n          <div class=\"tlc-spec-item\">\n            <span class=\"tlc-spec-label\">Detection Range<\/span>\n            <span class=\"tlc-spec-value\">Up to 70 m<\/span>\n          <\/div>\n          \n          <div class=\"tlc-spec-item\">\n            <span class=\"tlc-spec-label\">Response Time<\/span>\n            <span class=\"tlc-spec-value\">From 6.0 ms<\/span>\n          <\/div>\n          \n          <div class=\"tlc-spec-item\">\n            <span class=\"tlc-spec-label\">Protection Height<\/span>\n            <span class=\"tlc-spec-value\">Up to 1,960 mm<\/span>\n          <\/div>\n          \n          <div class=\"tlc-spec-item\">\n            <span class=\"tlc-spec-label\">Enclosure Rating<\/span>\n            <span class=\"tlc-spec-value\">IP65<\/span>\n          <\/div>\n\n        <\/div>\n      <\/div>\n      \n    <\/div>\n  <\/div>\n<\/section>\n\n<script>\n  document.addEventListener('DOMContentLoaded', function() {\n    const specItems = document.querySelectorAll('#type4-light-curtain-info .tlc-spec-item');\n    \n    specItems.forEach(item => {\n      item.addEventListener('mouseenter', function() {\n        this.style.backgroundColor = 'rgba(48, 48, 48, 0.04)';\n        this.style.transition = 'background-color 0.2s ease';\n        this.style.paddingLeft = '8px';\n        this.style.paddingRight = '8px';\n        this.style.borderRadius = '4px';\n      });\n      \n      item.addEventListener('mouseleave', function() {\n        this.style.backgroundColor = 'transparent';\n        this.style.paddingLeft = '0';\n        this.style.paddingRight = '0';\n      });\n    });\n  });\n<\/script>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-4306ab7\" data-block-id=\"4306ab7\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-4306ab7-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-0df37ae\" data-v=\"4\" data-block-id=\"0df37ae\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-0df37ae-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-0df37ae-inner-blocks\">\n<style>\n  \/* 3. Aesthetics & Fonts: Importing high-quality font *\/\n  @import url('https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;500;600;700&display=swap');\n\n  \/* 1. Highest level of Scope: All styles scoped to #ent-type4-models-module *\/\n  #ent-type4-models-module {\n    width: 100% !important;\n    padding: 40px 0 !important; \/* Fixed 40px padding as requested *\/\n    background-color: #f8fafc !important;\n    font-family: 'Inter', sans-serif !important;\n    box-sizing: border-box !important;\n  }\n\n  #ent-type4-models-module * {\n    box-sizing: border-box !important;\n  }\n\n  #ent-type4-models-module .ent-container {\n    max-width: 1200px !important;\n    margin: 0 auto !important;\n    padding: 0 20px !important;\n  }\n\n  \/* User Override: Using semantic H2\/H3\/H4 matched to Blocksy defaults *\/\n  #ent-type4-models-module h2.ent-main-title {\n    color: #303030 !important; \/* Main title color *\/\n    font-size: 32px !important; \/* Default title size *\/\n    font-weight: 700 !important;\n    text-align: center !important;\n    margin: 0 0 32px 0 !important;\n    line-height: 1.3 !important;\n  }\n\n  #ent-type4-models-module h3.ent-sub-title {\n    color: #303030 !important;\n    font-size: 24px !important;\n    font-weight: 700 !important;\n    margin: 40px 0 20px 0 !important;\n    line-height: 1.3 !important;\n    border-bottom: 2px solid #181818 !important;\n    padding-bottom: 8px !important;\n    display: inline-block !important;\n  }\n\n  #ent-type4-models-module h4.ent-cta-title {\n    color: #181818 !important;\n    font-size: 18px !important;\n    font-weight: 700 !important;\n    margin: 0 0 8px 0 !important;\n    line-height: 1.4 !important;\n  }\n\n  \/* Text Elements *\/\n  #ent-type4-models-module p.ent-text {\n    color: #484848 !important; \/* Secondary color for body text *\/\n    font-size: 16px !important;\n    line-height: 1.6 !important;\n    margin: 0 0 24px 0 !important;\n    text-align: justify !important;\n  }\n\n  \/* 4. Layout: Tables designed for compact data display *\/\n  #ent-type4-models-module .ent-table-wrapper {\n    width: 100% !important;\n    overflow-x: auto !important; \/* Responsive horizontal scroll for mobile *\/\n    margin-bottom: 32px !important;\n    border: 1px solid #e0e0e0 !important;\n    border-radius: 6px !important;\n    box-shadow: 0 2px 8px rgba(0,0,0,0.02) !important;\n  }\n\n  #ent-type4-models-module table.ent-table {\n    width: 100% !important;\n    border-collapse: collapse !important;\n    text-align: left !important;\n    min-width: 900px !important; \/* Ensures table doesn't squash on small screens *\/\n    background-color: #ffffff !important;\n  }\n\n  #ent-type4-models-module table.ent-table th,\n  #ent-type4-models-module table.ent-table td {\n    padding: 12px 16px !important;\n    border-bottom: 1px solid #e0e0e0 !important;\n    border-right: 1px solid #e0e0e0 !important;\n    font-size: 15px !important;\n    color: #484848 !important;\n    vertical-align: middle !important;\n  }\n\n  #ent-type4-models-module table.ent-table th:last-child,\n  #ent-type4-models-module table.ent-table td:last-child {\n    border-right: none !important;\n  }\n\n  #ent-type4-models-module table.ent-table th {\n    background-color: #F0F0F0 !important; \/* Light background for header *\/\n    color: #303030 !important;\n    font-weight: 600 !important;\n    white-space: nowrap !important;\n  }\n\n  #ent-type4-models-module table.ent-table tr:last-child td {\n    border-bottom: none !important;\n  }\n\n  #ent-type4-models-module table.ent-table tr.ent-shared-row td {\n    background-color: #fafafa !important;\n    text-align: center !important;\n    color: #181818 !important;\n    font-weight: 500 !important;\n  }\n\n  \/* Call To Action (CTA) Boxes - Desktop Row Layout *\/\n  #ent-type4-models-module .ent-cta-box {\n    background-color: #F0F0F0 !important;\n    border-left: 4px solid #181818 !important; \/* Dark color accent *\/\n    padding: 24px 32px !important;\n    margin: 32px 0 !important;\n    border-radius: 0 8px 8px 0 !important;\n    display: flex !important;\n    flex-direction: row !important; \/* Horizontal layout *\/\n    align-items: center !important; \/* Vertically center items *\/\n    justify-content: space-between !important; \/* Push text left, button right *\/\n    gap: 30px !important;\n  }\n\n  #ent-type4-models-module .ent-cta-content {\n    flex: 1 !important; \/* Takes up remaining space *\/\n  }\n\n  #ent-type4-models-module .ent-cta-box p.ent-text {\n    margin-bottom: 0 !important;\n  }\n\n  \/* Button styling *\/\n  #ent-type4-models-module a.ent-action-btn {\n    background-color: #181818 !important;\n    color: #ffffff !important;\n    text-decoration: none !important; \/* Prevent link underline *\/\n    border: none !important;\n    padding: 14px 28px !important;\n    font-family: 'Inter', sans-serif !important;\n    font-size: 15px !important;\n    font-weight: 600 !important;\n    border-radius: 4px !important;\n    cursor: pointer !important;\n    transition: background-color 0.2s ease, transform 0.1s ease !important;\n    display: inline-flex !important;\n    align-items: center !important;\n    white-space: nowrap !important; \/* Keeps button text on one line *\/\n    flex-shrink: 0 !important; \/* Prevents button from shrinking *\/\n  }\n\n  #ent-type4-models-module a.ent-action-btn:hover {\n    background-color: #303030 !important;\n    color: #ffffff !important;\n    transform: translateY(-1px) !important;\n  }\n\n  \/* Responsive Adjustments *\/\n  @media (max-width:690px) {\n    #ent-type4-models-module h2.ent-main-title { font-size: 28px !important; }\n    #ent-type4-models-module h3.ent-sub-title { font-size: 22px !important; }\n    \n    \/* Mobile CTA Layout adjustments *\/\n    #ent-type4-models-module .ent-cta-box { \n      padding: 20px !important; \n      flex-direction: column !important; \/* Stack vertically on small screens *\/\n      align-items: flex-start !important;\n      gap: 16px !important;\n    }\n    \n    #ent-type4-models-module a.ent-action-btn {\n      align-self: flex-end !important; \/* Aligns button to the right on mobile *\/\n      margin-top: 8px !important;\n    }\n  }\n<\/style>\n\n<section id=\"ent-type4-models-module\">\n  <div class=\"ent-container\">\n    \n    <h2 class=\"ent-main-title\">ENT vs. Competing Safety Light Curtain Sensors \u2014 Specification Comparison<\/h2>\n    \n    <p class=\"ent-text\">The ENT series covers all three resolution classes for machine guarding across diverse industrial applications, with each model sharing identical safety architecture, IP65 environmental protection, and optical synchronization technology. No separate safety modules or additional signal cables are needed between the transmitter and receiver \u2014 only the optical sync link.<\/p>\n\n    <div class=\"ent-table-wrapper\">\n      <table class=\"ent-table\" id=\"ent-param-table\">\n        <thead>\n          <tr>\n            <th style=\"width: 25%;\">Parameter<\/th>\n            <th style=\"width: 25%;\">ENT-14 (Finger)<\/th>\n            <th style=\"width: 25%;\">ENT-25 (Hand)<\/th>\n            <th style=\"width: 25%;\">ENT-45 (Body)<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n          <tr>\n            <td><strong>Optical Axis Spacing<\/strong><\/td>\n            <td>10 mm<\/td>\n            <td>20 mm<\/td>\n            <td>40 mm<\/td>\n          <\/tr>\n          <tr>\n            <td><strong>Detection Accuracy<\/strong><\/td>\n            <td>14 mm<\/td>\n            <td>25 mm<\/td>\n            <td>45 mm<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Detection Distance<\/strong><\/td>\n            <td colspan=\"3\">A: 0\u201310 m &nbsp;|&nbsp; B: 0\u201316 m &nbsp;|&nbsp; C: 0\u20135 m &nbsp;|&nbsp; D: 0\u201340 m &nbsp;|&nbsp; E: 0\u201370 m<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Protection Height<\/strong><\/td>\n            <td colspan=\"3\">Up to 1,960 mm (configurable by beam count)<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Response Time<\/strong><\/td>\n            <td colspan=\"3\">6.0\u201330.8 ms (scales with beam count)<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Safety Rating<\/strong><\/td>\n            <td colspan=\"3\">Type 4, Cat.4, PLe, SIL3<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Standards<\/strong><\/td>\n            <td colspan=\"3\">IEC 61496-1,2:2020 | EN 61508-1~4:2020 | ISO 13849-1:2023<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Protection Rating<\/strong><\/td>\n            <td colspan=\"3\">IP65<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Supply Voltage<\/strong><\/td>\n            <td colspan=\"3\">24 VDC \u00b120%<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Safety Output<\/strong><\/td>\n            <td colspan=\"3\">Dual PNP or NPN transistor (\u2264100 mA per channel)<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Cross-Section<\/strong><\/td>\n            <td colspan=\"3\">34 \u00d7 28 mm<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Connection<\/strong><\/td>\n            <td colspan=\"3\">M12 connector<\/td>\n          <\/tr>\n          <tr class=\"ent-shared-row\">\n            <td style=\"text-align: left !important;\"><strong>Configuration<\/strong><\/td>\n            <td colspan=\"3\">Infrared one-button PNP\/NPN switching<\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n\n    <div class=\"ent-cta-box\">\n      <div class=\"ent-cta-content\">\n        <h4 class=\"ent-cta-title\">Protection Height &#038; Beam Count Calculator<\/h4>\n        <p class=\"ent-text\">Enter your machine opening dimensions to get beam count, protection height, response time, and unit length.<\/p>\n      <\/div>\n      <a href=\"https:\/\/industrialsafetysensor.com\/safety-light-curtains\/type-4-safety-light-curtain\/ent-model-selector\/\" class=\"ent-action-btn\">Open Calculator &rarr;<\/a>\n    <\/div>\n\n    <p class=\"ent-text\">Every ENT unit features per-segment indicator lights that display operational status for individual beam zones \u2014 showing whether each zone is clear, blocked, or misaligned \u2014 so technicians can detect alignment issues immediately without additional diagnostic hardware. An infrared-based optical configuration system eliminates DIP switches and proprietary software, cutting commissioning time to under one hour.<\/p>\n\n    <h3 class=\"ent-sub-title\">Selection Guide: Which ENT Model for Your Application<\/h3>\n\n    <div class=\"ent-table-wrapper\">\n      <table class=\"ent-table\" id=\"ent-guide-table\">\n        <thead>\n          <tr>\n            <th>Application<\/th>\n            <th>Recommended Model<\/th>\n            <th>Resolution<\/th>\n            <th>Detection Distance<\/th>\n            <th>Mounting Note<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n          <tr>\n            <td>Mechanical press point-of-operation<\/td>\n            <td><strong>ENT-14<\/strong><\/td>\n            <td>14 mm (finger)<\/td>\n            <td>A: 0\u201310 m<\/td>\n            <td>Perpendicular to access<\/td>\n          <\/tr>\n          <tr>\n            <td>Hydraulic press side guarding<\/td>\n            <td><strong>ENT-25<\/strong><\/td>\n            <td>25 mm (hand)<\/td>\n            <td>B: 0\u201316 m<\/td>\n            <td>+ Safety relay module<\/td>\n          <\/tr>\n          <tr>\n            <td>Press brake operator zone<\/td>\n            <td><strong>ENT-14<\/strong><\/td>\n            <td>14 mm (finger)<\/td>\n            <td>C: 0\u20135 m<\/td>\n            <td>Near-distance mode<\/td>\n          <\/tr>\n          <tr>\n            <td>Robotic cell entry point<\/td>\n            <td><strong>ENT-45<\/strong><\/td>\n            <td>45 mm (body)<\/td>\n            <td>D: 0\u201340 m<\/td>\n            <td>Cascading configuration<\/td>\n          <\/tr>\n          <tr>\n            <td>Palletizing line passage<\/td>\n            <td><strong>ENT-45 + muting<\/strong><\/td>\n            <td>45 mm (body)<\/td>\n            <td>E: 0\u201370 m<\/td>\n            <td>+ Reflective column<\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n\n    <p class=\"ent-text\">For protective applications involving multiple access points, cascading software allows cross-point interconnection between multiple light curtains and a single, integrated safety controller. Conventional safety devices use expensive cable runs and junction boxes, while reflectors enable a single transmitter and receiver pair to guard two or three sides of an access point for maximum value.<\/p>\n\n    <div class=\"ent-cta-box\">\n      <div class=\"ent-cta-content\">\n        <h4 class=\"ent-cta-title\">ENT Model Selector \u2014 Find Your Configuration<\/h4>\n        <p class=\"ent-text\">Answer 3 questions about your machine to get a recommended model, distance class, and accessory list.<\/p>\n      <\/div>\n      <a href=\"https:\/\/industrialsafetysensor.com\/safety-light-curtains\/type-4-safety-light-curtain\/protection-height-beam-count-calculator\/\" class=\"ent-action-btn\">Open Selector &rarr;<\/a>\n    <\/div>\n\n  <\/div>\n<\/section>\n\n<script>\n  document.addEventListener('DOMContentLoaded', function() {\n    const tables = document.querySelectorAll('#ent-type4-models-module .ent-table tbody tr');\n    \n    \/\/ Add subtle hover effect to table rows via Vanilla JS to ensure no CSS leakage\/conflicts\n    tables.forEach(row => {\n      row.addEventListener('mouseenter', function() {\n        this.style.backgroundColor = 'rgba(240, 240, 240, 0.6)';\n        this.style.transition = 'background-color 0.2s ease';\n      });\n      \n      row.addEventListener('mouseleave', function() {\n        this.style.backgroundColor = '';\n      });\n    });\n  });\n<\/script>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-209d9d5\" data-block-id=\"209d9d5\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-209d9d5-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-8c0dddb\" data-v=\"4\" data-block-id=\"8c0dddb\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-8c0dddb-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-8c0dddb-inner-blocks\">\n<style>\n  \/* =========================================\n     Type 4 Safety Light Curtain - SEO Table Layout\n     Scope ID: #type4-comp-seo\n     ========================================= *\/\n\n  #type4-comp-seo {\n      width: 100% !important;\n      padding: 40px 15px !important; 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\/* \u5de6\u4fa7\u8fb9\u6846\u52a0\u7c97\u805a\u7126 *\/\n      border-right: 2px solid #303030 !important;\n  }\n\n  #type4-comp-seo table.seo-table thead th.highlight-col-header {\n      background-color: #303030 !important; \/* \u4e3b\u8272\u8c03\u8868\u5934\u66f4\u9192\u76ee *\/\n      border-top: 4px solid #F0F0F0 !important;\n  }\n\n  #type4-comp-seo table.seo-table td.competitor-col {\n      color: #484848 !important;\n  }\n\n  \/* --- Compact Horizontal CTA --- *\/\n  #type4-comp-seo .comp-outro-box {\n      background-color: #F0F0F0 !important;\n      border-left: 4px solid #181818 !important;\n      padding: 25px 30px !important;\n      border-radius: 6px !important;\n      display: flex !important;\n      flex-direction: row !important;\n      align-items: center !important;\n      justify-content: space-between !important;\n      gap: 30px !important;\n  }\n\n  #type4-comp-seo .comp-outro-box p {\n      color: #484848 !important;\n      font-size: 15px !important;\n      line-height: 1.6 !important;\n      margin: 0 !important;\n      flex: 1 !important;\n  }\n\n  #type4-comp-seo a.comp-cta-btn {\n      background-color: #181818 !important;\n      color: #ffffff !important;\n      font-size: 15px !important;\n      font-weight: 600 !important;\n      text-decoration: none !important;\n      padding: 14px 28px !important;\n      border-radius: 4px !important;\n      display: inline-flex !important;\n      align-items: center !important;\n      white-space: nowrap !important;\n      transition: background-color 0.2s ease !important;\n      flex-shrink: 0 !important;\n  }\n\n  #type4-comp-seo a.comp-cta-btn:hover {\n      background-color: #303030 !important;\n  }\n\n  \/* --- Responsive --- *\/\n  @media (max-width: 900px) {\n      #type4-comp-seo .comp-outro-box {\n          flex-direction: column !important;\n          align-items: flex-start !important;\n          padding: 20px !important;\n          gap: 20px !important;\n      }\n  }\n\n  @media (max-width:690px) {\n      #type4-comp-seo h2.comp-main-title { font-size: 26px !important; }\n      #type4-comp-seo { padding: 30px 10px !important; }\n  }\n<\/style>\n\n<section id=\"type4-comp-seo\">\n  <div class=\"layout-wrapper\">\n      \n      <h2 class=\"comp-main-title\">ENT vs. Competing Type 4 Light Curtains \u2014 Specification Comparison<\/h2>\n      <p class=\"comp-intro\">All Type 4 safety light curtains meet the same IEC 61496 standard. Your decision will depend on resolution levels, detection distances, response times, physical dimensions, and total lifetime costs.<\/p>\n\n      <div class=\"table-responsive\">\n          <table class=\"seo-table\">\n              <thead>\n                  <tr>\n                      <th scope=\"col\">Specification<\/th>\n                      <th scope=\"col\" class=\"highlight-col-header\">QJKH ENT<\/th>\n                      <th scope=\"col\">Brand A<\/th>\n                      <th scope=\"col\">Brand B<\/th>\n                  <\/tr>\n              <\/thead>\n              <tbody>\n                  <tr class=\"category-row\">\n                      <th colspan=\"4\" scope=\"colgroup\">\n                          <h3>Performance &#038; Detection<\/h3>\n                      <\/th>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">Resolution Options<\/th>\n                      <td class=\"highlight-col\">14 \/ 25 \/ 45 mm<\/td>\n                      <td class=\"competitor-col\">14 \/ 30 mm<\/td>\n                      <td class=\"competitor-col\">20 \/ 40 mm<\/td>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">Max Detection Distance<\/th>\n                      <td class=\"highlight-col\">70 m<\/td>\n                      <td class=\"competitor-col\">15 m<\/td>\n                      <td class=\"competitor-col\">20 m<\/td>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">Min Response Time<\/th>\n                      <td class=\"highlight-col\">6.0 ms<\/td>\n                      <td class=\"competitor-col\">6.5 ms<\/td>\n                      <td class=\"competitor-col\">12 ms<\/td>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">Price Positioning<\/th>\n                      <td class=\"highlight-col\">Factory-direct competitive<\/td>\n                      <td class=\"competitor-col\">$$$$$<\/td>\n                      <td class=\"competitor-col\">$$$<\/td>\n                  <\/tr>\n\n                  <tr class=\"category-row\">\n                      <th colspan=\"4\" scope=\"colgroup\">\n                          <h3>Hardware &#038; Smart Features<\/h3>\n                      <\/th>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">Cross-Section<\/th>\n                      <td class=\"highlight-col\">34 \u00d7 28 mm<\/td>\n                      <td class=\"competitor-col\">41 \u00d7 27 mm<\/td>\n                      <td class=\"competitor-col\">30 \u00d7 30 mm<\/td>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">IP Rating &#038; Connector<\/th>\n                      <td class=\"highlight-col\">IP65 (Standard M12)<\/td>\n                      <td class=\"competitor-col\">IP65\/IP67 (Proprietary + M12 adapter)<\/td>\n                      <td class=\"competitor-col\">IP65 (Standard M12)<\/td>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">PNP\/NPN Switching &#038; Indicators<\/th>\n                      <td class=\"highlight-col\">IR one-button \/ Per-segment LED<\/td>\n                      <td class=\"competitor-col\">Software required \/ Full-length LED<\/td>\n                      <td class=\"competitor-col\">DIP switch \/ Status LED only<\/td>\n                  <\/tr>\n                  <tr>\n                      <th scope=\"row\">Cascading &#038; Reflective Column<\/th>\n                      <td class=\"highlight-col\">\u2713 Adapter-based \/ \u2713 Multi-side guarding<\/td>\n                      <td class=\"competitor-col\">\u2713 \/ \u2014 (Not supported)<\/td>\n                      <td class=\"competitor-col\">\u2713 \/ \u2014 (Not supported)<\/td>\n                  <\/tr>\n              <\/tbody>\n          <\/table>\n      <\/div>\n\n      <div class=\"comp-outro-box\">\n          <p>At 70 meters maximum detection distance, the ENT suits large-format applications \u2014 palletizing lines, warehouse entry gates, conveyor perimeters \u2014 where competing units would require multiple sender-receiver pairs. Its compact 34 \u00d7 28 mm cross-section fits tight mounting envelopes, and standard M12 connectors eliminate the proprietary cable lock-in that some OEMs have expressed frustration with.<\/p>\n          <a href=\"#ct-popup-788\" class=\"comp-cta-btn\">Get a Custom Comparison &rarr;<\/a>\n      <\/div>\n\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-4a48ca4\" data-block-id=\"4a48ca4\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-4a48ca4-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-5e77da9\" data-v=\"4\" data-block-id=\"5e77da9\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-5e77da9-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-5e77da9-inner-blocks\">\n<style>\n  \/* * 1. 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\/* \u7ee7\u627f\u4e3b\u9898\u7684 H3 \u5927\u5c0f *\/\n    font-family: inherit !important;\n    text-align: center;\n    margin-bottom: 40px;\n    font-weight: 600;\n  }\n\n  \/* \u5de5\u4e1a\u98ce\u7eaf\u56fe\u7247\u753b\u5eca\u7f51\u683c\u5e03\u5c40 *\/\n  #t4-safety-module .t4-gallery-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));\n    gap: 25px;\n    width: 100%;\n  }\n\n  #t4-safety-module .t4-card {\n    background-color: #ffffff;\n    border-radius: 4px;\n    padding: 10px; \/* \u7eaf\u56fe\u7247\u5c55\u793a\uff0c\u51cf\u5c0f\u4e86 padding \u8ba9\u56fe\u7247\u66f4\u5927\u6c14 *\/\n    box-shadow: 0 4px 10px rgba(24, 24, 24, 0.08); \/* \u4f7f\u7528 #181818 \u4f5c\u4e3a\u9634\u5f71\u57fa\u8272 *\/\n    transition: transform 0.3s ease, box-shadow 0.3s ease;\n    display: flex;\n    align-items: center;\n    justify-content: center;\n  }\n\n  #t4-safety-module .t4-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 8px 16px rgba(24, 24, 24, 0.15);\n  }\n\n  \/* * \u6027\u80fd\u4f18\u5316 (FlyingPress): \n   * aspect-ratio \u63d0\u524d\u5360\u4f4d\uff0c\u9632\u6b62\u56fe\u7247\u61d2\u52a0\u8f7d\u65f6\u5f15\u8d77\u9875\u9762\u6296\u52a8 (CLS)\n   *\/\n  #t4-safety-module .t4-card img {\n    width: 100%;\n    height: auto;\n    aspect-ratio: 4 \/ 3;\n    object-fit: cover;\n    border-radius: 2px;\n    display: block;\n    background-color: #e0e0e0; \/* \u52a0\u8f7d\u524d\u7684\u5360\u4f4d\u9aa8\u67b6\u5c4f\u989c\u8272 *\/\n  }\n<\/style>\n\n<section id=\"t4-safety-module\">\n  <div class=\"t4-container\">\n    \n    <h2>Type 4 Safety Light Curtains<\/h2>\n    <h3>Industrial Workshop Integration &#038; Applications<\/h3>\n    \n    <div class=\"t4-gallery-grid\">\n      \n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains.png\" alt=\"Type 4 Safety Light Curtain 1\" loading=\"lazy\">\n      <\/div>\n\n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains2.png\" alt=\"Type 4 Safety Light Curtain 2\" loading=\"lazy\">\n      <\/div>\n\n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains3.png\" alt=\"Type 4 Safety Light Curtain 3\" loading=\"lazy\">\n      <\/div>\n\n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains4.png\" alt=\"Type 4 Safety Light Curtain 4\" loading=\"lazy\">\n      <\/div>\n\n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains5.png\" alt=\"Type 4 Safety Light Curtain 5\" loading=\"lazy\">\n      <\/div>\n\n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains6.png\" alt=\"Type 4 Safety Light Curtain 6\" loading=\"lazy\">\n      <\/div>\n\n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains7.png\" alt=\"Type 4 Safety Light Curtain 7\" loading=\"lazy\">\n      <\/div>\n\n      <div class=\"t4-card\">\n        <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Safety-Light-Curtains8.png\" alt=\"Type 4 Safety Light Curtain 8\" loading=\"lazy\">\n      <\/div>\n\n    <\/div>\n  <\/div>\n<\/section>\n\n<script>\n  \/\/ \u539f\u751f JS\uff1a\u914d\u5408 FlyingPress \u5b9e\u73b0\u56fe\u7247\u52a0\u8f7d\u5b8c\u6210\u540e\u7684\u5e73\u6ed1\u6de1\u5165\u6548\u679c\n  document.addEventListener('DOMContentLoaded', function() {\n    const images = document.querySelectorAll('#t4-safety-module .t4-card img');\n    \n    images.forEach(img => {\n      if (img.complete) {\n        img.style.opacity = 1;\n      } else {\n        img.style.opacity = 0;\n        img.style.transition = 'opacity 0.4s ease-in-out';\n        img.addEventListener('load', () => {\n          img.style.opacity = 1;\n        });\n      }\n    });\n  });\n<\/script>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-df7f05c\" data-block-id=\"df7f05c\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-df7f05c-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dbb24ec\" data-v=\"4\" data-block-id=\"dbb24ec\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dbb24ec-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dbb24ec-inner-blocks\">\n<style>\n  \/* =========================================\n     Type 4 Safety Light Curtain - Compact Grid Layout\n     Scope ID: #type4-resolution-compact\n     ========================================= *\/\n  \n  #type4-resolution-compact {\n      width: 100% !important;\n      padding: 40px 15px !important; \/* \u9075\u5faa 40px \u95f4\u8ddd\u8981\u6c42 *\/\n      background-color: #ffffff !important;\n      box-sizing: border-box !important;\n      font-family: inherit !important; \/* \u5f3a\u5236\u7ee7\u627f Blocksy \u5b57\u4f53 *\/\n  }\n\n  #type4-resolution-compact * {\n      box-sizing: border-box !important;\n  }\n\n  #type4-resolution-compact .layout-wrapper {\n      max-width: 1200px !important; \n      margin: 0 auto !important;\n      display: flex !important;\n      flex-direction: column !important;\n      gap: 30px !important; \/* \u6a21\u5757\u95f4\u5782\u76f4\u95f4\u8ddd\u6536\u7d27\u5230 30px *\/\n  }\n\n  \/* --- Typography --- *\/\n  #type4-resolution-compact h2 {\n      font-size: 32px !important; \/* \u9075\u5faa\u9ed8\u8ba4 32px \u4e3b\u6807\u9898\u8bbe\u5b9a *\/\n      color: #303030 !important;\n      margin: 0 0 15px 0 !important;\n      text-align: center !important;\n      font-weight: 700 !important;\n      line-height: 1.3 !important;\n  }\n\n  #type4-resolution-compact h3 {\n      font-size: 22px !important;\n      color: #303030 !important;\n      margin: 0 0 15px 0 !important;\n      font-weight: 700 !important;\n      border-bottom: 2px solid #ffffff !important;\n      padding-bottom: 10px !important;\n  }\n\n  #type4-resolution-compact h4 {\n      font-size: 20px !important;\n      color: #F0F0F0 !important; 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\/* \u6de1\u8272\u5e95\u677f *\/\n      padding: 25px 30px !important;\n      border-radius: 6px !important;\n      border-left: 5px solid #181818 !important; \/* \u6df1\u8272\u5f3a\u8c03\u5de6\u8fb9\u6846 *\/\n  }\n\n  #type4-resolution-compact .equation-box {\n      background-color: #ffffff !important;\n      padding: 15px !important;\n      border: 1px solid #dcdcdc !important;\n      border-radius: 4px !important;\n      margin: 15px 0 !important;\n      font-weight: 700 !important;\n      font-size: 18px !important;\n      color: #181818 !important;\n      text-align: center !important;\n      letter-spacing: 1px !important;\n  }\n\n  #type4-resolution-compact ul.variable-list {\n      list-style-type: none !important;\n      padding: 0 !important;\n      margin: 0 !important;\n  }\n\n  #type4-resolution-compact ul.variable-list li {\n      color: #484848 !important;\n      line-height: 1.5 !important;\n      margin-bottom: 10px !important;\n      font-size: 15px !important;\n      padding-left: 18px !important;\n      position: relative !important;\n  }\n\n  #type4-resolution-compact ul.variable-list li::before {\n      content: \"\u25a0\" !important;\n      color: #303030 !important;\n      position: absolute !important;\n      left: 0 !important;\n      font-size: 10px !important;\n      top: 5px !important;\n  }\n\n  \/* --- Example Block (Right) --- *\/\n  #type4-resolution-compact .example-block {\n      background-color: #ffffff !important;\n      padding: 25px 30px !important;\n      border-radius: 6px !important;\n      border: 1px solid #e0e0e0 !important;\n      border-top: 5px solid #484848 !important; \/* \u526f\u8272\u8c03\u9876\u90e8\u8fb9\u6846 *\/\n      box-shadow: 0 4px 12px rgba(0,0,0,0.03) !important;\n  }\n\n  #type4-resolution-compact .example-block h3 {\n      border-bottom: 2px solid #F0F0F0 !important;\n  }\n\n  #type4-resolution-compact .example-equation {\n      background-color: rgba(240, 240, 240, 0.5) !important;\n      padding: 15px !important;\n      border-radius: 4px !important;\n      margin: 15px 0 !important;\n      font-family: monospace !important;\n      font-size: 15px !important;\n      color: #181818 !important;\n      border-left: 4px solid #303030 !important;\n      overflow-x: auto !important;\n      white-space: nowrap !important;\n  }\n\n  \/* --- Horizontal CTA Box (Bottom) --- *\/\n  #type4-resolution-compact .cta-block {\n      background-color: #181818 !important; \/* \u6df1\u8272\u5f3a\u8c03\u80cc\u666f *\/\n      padding: 25px 35px !important;\n      border-radius: 6px !important;\n      display: flex !important;\n      flex-direction: row !important;\n      align-items: center !important;\n      justify-content: space-between !important;\n      gap: 20px !important;\n  }\n\n  #type4-resolution-compact .cta-content {\n      flex: 1 !important;\n  }\n\n  #type4-resolution-compact .cta-block p {\n      color: #F0F0F0 !important; \/* \u6de1\u8272\u6587\u5b57 *\/\n      margin: 0 !important;\n      opacity: 0.9 !important;\n  }\n\n  #type4-resolution-compact .cta-button {\n      display: inline-flex !important;\n      background-color: #F0F0F0 !important; \/* \u6de1\u8272\u5e95\u6309\u94ae *\/\n      color: #181818 !important;\n      padding: 14px 32px !important;\n      text-decoration: none !important;\n      font-weight: 700 !important;\n      font-size: 16px !important;\n      border-radius: 4px !important;\n      transition: all 0.3s ease !important;\n      white-space: nowrap !important;\n      flex-shrink: 0 !important;\n  }\n\n  #type4-resolution-compact .cta-button:hover {\n      background-color: #303030 !important;\n      color: #ffffff !important;\n  }\n\n  \/* --- Responsive Adjustments --- *\/\n  @media (max-width: 900px) {\n      #type4-resolution-compact .content-grid {\n          grid-template-columns: 1fr !important; \/* \u5c4f\u5e55\u8f83\u7a84\u65f6\u53d8\u56de\u5355\u680f *\/\n      }\n  }\n\n  @media (max-width:690px) {\n      #type4-resolution-compact {\n          padding: 30px 10px !important;\n      }\n      #type4-resolution-compact h2 {\n          font-size: 26px !important;\n      }\n      #type4-resolution-compact .calculation-block,\n      #type4-resolution-compact .example-block {\n          padding: 20px !important;\n      }\n      #type4-resolution-compact .cta-block {\n          flex-direction: column !important; \/* \u624b\u673a\u7aef CTA \u53d8\u4e3a\u4e0a\u4e0b\u6392\u5e03 *\/\n          text-align: center !important;\n          padding: 25px 20px !important;\n      }\n      #type4-resolution-compact .cta-button {\n          width: 100% !important;\n          justify-content: center !important;\n      }\n  }\n<\/style>\n\n<section id=\"type4-resolution-compact\">\n  <div class=\"layout-wrapper\">\n      \n      <div class=\"intro-section\">\n          <h2>Resolution Guide: 14 mm Finger | 25 mm Hand | 45 mm Body Detection<\/h2>\n          <p>Resolution determines how close a safety light curtain can be mounted to the hazard zone. Finer resolution allows a shorter minimum safety distance, but the machine&#8217;s stopping performance must be fast enough to halt before a hand or finger reaches the danger point at the designated approach speed.<\/p>\n      <\/div>\n\n      <div class=\"content-grid\">\n          \n          <div class=\"calculation-block\">\n              <h3>Safety Distance Calculation (ISO 13855)<\/h3>\n              <p>This approach distance varies as a function of system response time and device operating speed through the ISO 13855 equation:<\/p>\n              \n              <div class=\"equation-box\">\n                  S = K \u00d7 T + C\n              <\/div>\n              \n              <ul class=\"variable-list\">\n                  <li>S = Minimum safety distance (mm)<\/li>\n                  <li>K = Approach speed: 2,000 mm\/sec (hand), 1,600 mm\/sec (body)<\/li>\n                  <li>T = Light curtain response time plus machine stop time<\/li>\n                  <li>C = Penetration allowance: 8\u00d7(d\u221214) mm for d \u2264 40 mm; 850 mm for d > 40 mm<\/li>\n              <\/ul>\n          <\/div>\n\n          <div class=\"example-block\">\n              <h3>Calculation Example: ENT-14 on a Mechanical Press<\/h3>\n              <p>Configuration: ENT-14 with 32 beams (detecting accuracy d = 14 mm); response time t = 10.2 ms. Machine braking time t = 100 ms.<\/p>\n              \n              <div class=\"example-equation\">\n                  S = 2,000 \u00d7 (0.0102 + 0.100) + 8 \u00d7 (14 \u2212 14) = 2,000 \u00d7 0.1102 + 0 = 220.4 mm\n              <\/div>\n              \n              <p>At 220 mm from the press opening, the ENT-14 reaches finger-level detection, while allowing the operator to work comfortably in the area. You can also compare this to a competitor unit, with 12 ms response time: this same press would require 244 mm, pushing the curtain even further and reducing the ergonomic reach of the work station. Every millisecond of response time translates to 2 mm of additional safety distance at hand approach speed.<\/p>\n          <\/div>\n\n      <\/div>\n\n      <div class=\"cta-block\">\n          <div class=\"cta-content\">\n              <h4>Safety Distance Calculator (ISO 13855)<\/h4>\n              <p>Enter response time and machine stop time to calculate the minimum mounting distance for your installation.<\/p>\n          <\/div>\n          <a href=\"https:\/\/industrialsafetysensor.com\/safety-light-curtains\/type-4-safety-light-curtain\/safety-distance-calculator-iso-13855\/\" class=\"cta-button\">Open Calculator &rarr;<\/a>\n      <\/div>\n\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-26cc314\" data-block-id=\"26cc314\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-26cc314-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-a9d9e0e\" data-v=\"4\" data-block-id=\"a9d9e0e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a9d9e0e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a9d9e0e-inner-blocks\">\n<section id=\"type4-safety-module\">\n    <style>\n        \/* ==========================================================================\n           Scope Isolation: #type4-safety-module\n           ========================================================================== *\/\n        #type4-safety-module {\n            width: 100%;\n            max-width: 1200px; \/* \u9650\u5236\u6574\u4f53\u6700\u5927\u5bbd\u5ea6\u4e3a 1200px *\/\n            margin: 0 auto;    \/* \u786e\u4fdd\u6a21\u5757\u5728\u9875\u9762\u4e2d\u6c34\u5e73\u5c45\u4e2d *\/\n            padding: 40px 15px; \/* \u589e\u52a0\u5de6\u53f3\u5185\u8fb9\u8ddd\uff0c\u9632\u6b62\u5728\u79fb\u52a8\u7aef\u5185\u5bb9\u8d34\u8fb9 *\/\n            box-sizing: border-box;\n            background-color: transparent;\n            font-family: inherit; \/* \u7ee7\u627f Blocksy \u9ed8\u8ba4\u5b57\u4f53 *\/\n            color: #484848;\n        }\n\n        #type4-safety-module *,\n        #type4-safety-module *::before,\n        #type4-safety-module *::after {\n            box-sizing: border-box;\n        }\n\n        \/* Typography & Colors *\/\n        #type4-safety-module h2.main-title {\n            color: #303030 !important;\n            font-size: 32px !important;\n            text-align: center;\n            font-weight: 700;\n            margin-top: 0;\n            margin-bottom: 40px;\n            line-height: 1.3;\n        }\n\n        #type4-safety-module h3.card-title {\n            color: #303030 !important;\n            font-size: 18px !important; \n            font-weight: 600;\n            margin-top: 0;\n            margin-bottom: 12px;\n            line-height: 1.3;\n        }\n\n        #type4-safety-module p.desc-text {\n            color: #484848 !important;\n            font-size: 15px;\n            line-height: 1.5;\n            margin: 0;\n            \/* \u6587\u672c\u6298\u53e0\u6837\u5f0f *\/\n            display: -webkit-box;\n            -webkit-line-clamp: 4; \/* \u9ed8\u8ba4\u663e\u793a4\u884c *\/\n            -webkit-box-orient: vertical;\n            overflow: hidden;\n            transition: all 0.3s ease;\n        }\n\n        \/* \u5c55\u5f00\u540e\u7684\u6587\u672c\u6837\u5f0f *\/\n        #type4-safety-module p.desc-text.expanded {\n            -webkit-line-clamp: unset;\n        }\n\n        \/* \u5c55\u5f00\/\u6536\u8d77 \u6309\u94ae\u6837\u5f0f *\/\n        #type4-safety-module button.toggle-text-btn {\n            background: none;\n            border: none;\n            padding: 8px 0 0 0;\n            color: #303030 !important;\n            font-weight: 700;\n            font-size: 14px;\n            cursor: pointer;\n            text-align: left;\n            text-decoration: underline;\n            font-family: inherit;\n            display: inline-block;\n            margin-top: auto; \/* \u5c06\u6309\u94ae\u63a8\u81f3\u5e95\u90e8 *\/\n        }\n\n        #type4-safety-module button.toggle-text-btn:hover {\n            color: #181818 !important;\n        }\n\n        \/* Layout: Application Grid (\u4e00\u6392\u56db\u5217) *\/\n        #type4-safety-module .app-grid {\n            display: grid;\n            grid-template-columns: 1fr;\n            gap: 24px;\n            margin-bottom: 60px;\n        }\n\n        @media (min-width:690px) {\n            #type4-safety-module .app-grid {\n                grid-template-columns: repeat(2, 1fr);\n            }\n        }\n\n        @media (min-width:1000px) {\n            #type4-safety-module .app-grid {\n                grid-template-columns: repeat(4, 1fr); \/* \u684c\u9762\u7aef\u5f3a\u5236\u4e00\u6392 *\/\n            }\n        }\n\n        \/* Application Cards *\/\n        #type4-safety-module .app-card {\n            background-color: #F0F0F0;\n            border-radius: 8px;\n            overflow: hidden;\n            display: flex;\n            flex-direction: column;\n            height: 100%;\n        }\n\n        #type4-safety-module .app-card img {\n            width: 100%;\n            height: auto;\n            display: block;\n            object-fit: cover;\n            aspect-ratio: 16\/9; \/* \u9632\u6b62\u52a0\u8f7d\u6296\u52a8 *\/\n        }\n\n        #type4-safety-module .app-content {\n            padding: 20px;\n            display: flex;\n            flex-direction: column;\n            flex-grow: 1;\n            align-items: flex-start;\n        }\n\n        \/* Layout: ROI Section *\/\n        #type4-safety-module .roi-section {\n            background-color: #181818;\n            border-radius: 8px;\n            padding: 40px 32px;\n            color: #F0F0F0;\n        }\n\n        #type4-safety-module h3.roi-title {\n            color: #F0F0F0 !important;\n            text-align: center;\n            font-size: 28px !important;\n            margin-top: 0;\n            margin-bottom: 40px;\n        }\n\n        #type4-safety-module .roi-grid {\n            display: grid;\n            grid-template-columns: repeat(2, 1fr);\n            gap: 24px;\n            text-align: center;\n            margin-bottom: 32px;\n        }\n\n        @media (min-width:690px) {\n            #type4-safety-module .roi-grid {\n                grid-template-columns: repeat(4, 1fr);\n            }\n        }\n\n        #type4-safety-module .roi-item h4.roi-value {\n            color: #F0F0F0 !important;\n            font-size: 36px !important;\n            font-weight: 700;\n            margin: 0 0 12px 0;\n        }\n\n        #type4-safety-module .roi-item p.roi-label {\n            color: #F0F0F0 !important;\n            opacity: 0.8;\n            font-size: 15px;\n            margin: 0;\n        }\n\n        #type4-safety-module p.roi-footer {\n            text-align: center;\n            font-size: 13px;\n            color: #F0F0F0 !important;\n            opacity: 0.6;\n            margin-top: 32px;\n            padding-top: 24px;\n            border-top: 1px solid #303030;\n            margin-bottom: 0;\n        }\n    <\/style>\n\n    <h2 class=\"main-title\">Safety Light Curtain Sensor Applications: Press Machine, Hydraulic Press &#038; Robotic Cell Protection<\/h2>\n\n    <div class=\"app-grid\">\n        <div class=\"app-card\">\n            <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Mechanical-Press-Point-of-Operation-Guarding.png\" alt=\"Mechanical Press: Point-of-Operation Guarding\" loading=\"lazy\">\n            <div class=\"app-content\">\n                <h3 class=\"card-title\">Mechanical Press: Point-of-Operation Guarding<\/h3>\n                <p class=\"desc-text\">Stamping presses represent one of the highest-risk scenarios in metal fabrication. The ENT-14 mounts perpendicular to the press opening at the calculated safety distance, creating a finger-detection barrier across the point of operation. During the press cycle, any beam interruption triggers a safety stop within the 6.0\u201310.2 ms response time window. A paired SRB-2A1B safety relay module monitors the dual-channel output and manages manual or automatic reset logic.<\/p>\n                <button class=\"toggle-text-btn\" aria-expanded=\"false\">Read More<\/button>\n            <\/div>\n        <\/div>\n\n        <div class=\"app-card\">\n            <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Hydraulic-Press-Multi-Sided-Protection.png\" alt=\"Hydraulic Press: Multi-Sided Protection\" loading=\"lazy\">\n            <div class=\"app-content\">\n                <h3 class=\"card-title\">Hydraulic Press: Multi-Sided Protection<\/h3>\n                <p class=\"desc-text\">Hydraulic presses fed from multiple sides present a more complex guarding challenge. The ENT cascading system addresses this directly: two or three ENT-25 units interconnect through cascading adapters and are controlled by a single safety controller. Where physical constraints prevent direct mounting on every side, reflective columns redirect the beam plane around corners \u2014 guarding two or three access points with a single transmitter-receiver pair.<\/p>\n                <button class=\"toggle-text-btn\" aria-expanded=\"false\">Read More<\/button>\n            <\/div>\n        <\/div>\n\n        <div class=\"app-card\">\n            <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Robotic-Cell-Entry-Points.png\" alt=\"Robotic Cell Entry Points\" loading=\"lazy\">\n            <div class=\"app-content\">\n                <h3 class=\"card-title\">Robotic Cell Entry Points<\/h3>\n                <p class=\"desc-text\">Robotic cells require body detection at entry points, combined with muting for automated material handling. The ENT-45 supports muting so that pallets and fixtures can pass through the detection zone without interrupting production, while maintaining full personnel safeguarding at all other times. Dual optical synchronization channels (A and B frequency bands) prevent crosstalk with neighboring safety light curtains on adjacent machines.<\/p>\n                <button class=\"toggle-text-btn\" aria-expanded=\"false\">Read More<\/button>\n            <\/div>\n        <\/div>\n\n        <div class=\"app-card\">\n            <img decoding=\"async\" src=\"https:\/\/industrialsafetysensor.com\/wp-content\/uploads\/2026\/04\/Press-Brake-Bending-Machine.png\" alt=\"Press Brake &#038; Bending Machine\" loading=\"lazy\">\n            <div class=\"app-content\">\n                <h3 class=\"card-title\">Press Brake &#038; Bending Machine<\/h3>\n                <p class=\"desc-text\">Press brakes are usually required to be positioned as close as possible to their operators in order to preserve reach of the protective envelope. When used in near-distance mode (C: 0-5 meters), the ENT-14 with a response time of just 6.0 milliseconds maintains a safety distance of less than 250 mm.<\/p>\n                <button class=\"toggle-text-btn\" aria-expanded=\"false\">Read More<\/button>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    <div class=\"roi-section\">\n        <h3 class=\"roi-title\">Machine Guarding Return on Investment<\/h3>\n        \n        <div class=\"roi-grid\">\n            <div class=\"roi-item\">\n                <h4 class=\"roi-value\">12\u201324<\/h4>\n                <p class=\"roi-label\">Month Typical Payback<\/p>\n            <\/div>\n            <div class=\"roi-item\">\n                <h4 class=\"roi-value\">3\u20135\u00d7<\/h4>\n                <p class=\"roi-label\">ROI Within 3 Years<\/p>\n            <\/div>\n            <div class=\"roi-item\">\n                <h4 class=\"roi-value\">$128B<\/h4>\n                <p class=\"roi-label\">Annual U.S. Injury Cost<\/p>\n            <\/div>\n            <div class=\"roi-item\">\n                <h4 class=\"roi-value\">$1.4B<\/h4>\n                <p class=\"roi-label\">Global Market (2025)<\/p>\n            <\/div>\n        <\/div>\n\n        <p class=\"roi-footer\">Industry standard for machine guarding investments. Exact payback period will depend on your current economy&#8217;s risk and production requirements. Data sources: Rockford Systems, Fortune Business Insights.<\/p>\n    <\/div>\n\n    <script>\n        document.addEventListener('DOMContentLoaded', function() {\n            const moduleContainer = document.getElementById('type4-safety-module');\n            if (!moduleContainer) return;\n\n            const toggleButtons = moduleContainer.querySelectorAll('.toggle-text-btn');\n            \n            toggleButtons.forEach(function(btn) {\n                btn.addEventListener('click', function() {\n                    \/\/ \u83b7\u53d6\u6309\u94ae\u524d\u9762\u7684\u6bb5\u843d\u5143\u7d20\n                    const descText = this.previousElementSibling;\n                    const isExpanded = descText.classList.contains('expanded');\n                    \n                    if (isExpanded) {\n                        descText.classList.remove('expanded');\n                        this.textContent = 'Read More';\n                        this.setAttribute('aria-expanded', 'false');\n                    } else {\n                        descText.classList.add('expanded');\n                        this.textContent = 'Show Less';\n                        this.setAttribute('aria-expanded', 'true');\n                    }\n                });\n            });\n        });\n    <\/script>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-9b02b92\" data-block-id=\"9b02b92\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-9b02b92-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9dea849\" data-v=\"4\" data-block-id=\"9dea849\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9dea849-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-9dea849-inner-blocks\">\n<section id=\"type4-compliance-module\">\n    <style>\n        \/* ==========================================================================\n           Scope Isolation: #type4-compliance-module\n           ========================================================================== *\/\n        #type4-compliance-module {\n            width: 100%; 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\/* \u4e3b\u8272\u8c03\u80cc\u666f *\/\n            color: #F0F0F0 !important;\n            padding: 40px 32px;\n            border-radius: 8px;\n            text-align: left;\n        }\n\n        #type4-compliance-module h4.mfg-title {\n            color: #F0F0F0 !important;\n            font-size: 22px !important;\n            font-weight: 700;\n            margin-top: 0;\n            margin-bottom: 16px;\n            line-height: 1.3;\n        }\n\n        #type4-compliance-module p.mfg-desc {\n            color: #F0F0F0 !important;\n            font-size: 15px !important;\n            line-height: 1.7;\n            margin: 0;\n            opacity: 0.95;\n        }\n    <\/style>\n\n    <div class=\"inner-container\">\n        <h2 class=\"main-title\">Certifications &#038; Compliance: IEC 61496 | ISO 13849 | T\u00dcV Certified<\/h2>\n        <p class=\"intro-text\">All ENT series light curtains ship with third-party T\u00dcV approval \u2014 not self-certification, but independent confirmation that the unit complies with the requirements of international safety standards.<\/p>\n\n        <div class=\"cert-grid\">\n            <div class=\"cert-item\">Type 4 \u2014 IEC 61496-1,2:2020<\/div>\n            <div class=\"cert-item\">Cat.4 \u2014 ISO 13849-1:2023<\/div>\n            <div class=\"cert-item\">PLe \u2014 ISO 13849-1:2023<\/div>\n            <div class=\"cert-item\">SIL3 \u2014 IEC 61508-1~4:2020<\/div>\n            <div class=\"cert-item\">CE \u2014 European Conformity<\/div>\n            <div class=\"cert-item\">T\u00dcV Certified<\/div>\n            <div class=\"cert-item\">IP65 \u2014 IEC 60529<\/div>\n            <div class=\"cert-item\">GB4584 \u2014 China National Standard<\/div>\n        <\/div>\n\n        <div class=\"hero-card\">\n            <h3 class=\"hero-title\">IEC 61496 Type 4<\/h3>\n            <p class=\"hero-text\">IEC 61496 Type 4 represents the most stringent category of electro-sensitive protective devices. Units in this class run continuous self-tests with redundant fault detection \u2014 if any internal circuit fails, power is removed within one response cycle. A PL (Performance Level) of e further confirms this is the highest achievable safety integrity for control system components in hazardous area applications.<\/p>\n        <\/div>\n\n        <div class=\"split-grid\">\n            <div class=\"standard-card\">\n                <h4 class=\"standard-title\">SIL3 (IEC 61508)<\/h4>\n                <p class=\"standard-text\">Safety Integrity Level 3 requires a probability of dangerous failure per hour between 10\u207b\u2078 and 10\u207b\u2077 \u2014 the highest level attainable by safety light curtains.<\/p>\n            <\/div>\n\n            <div class=\"standard-card\">\n                <h4 class=\"standard-title\">PLe (ISO 13849)<\/h4>\n                <p class=\"standard-text\">Performance Level e is the highest reliability category for safety-related control system components, with a mean time to dangerous failure (MTTFd) exceeding 100 years per channel.<\/p>\n            <\/div>\n        <\/div>\n\n        <div class=\"mfg-block\">\n            <h4 class=\"mfg-title\">Manufacturing &#038; Testing Facility<\/h4>\n            <p class=\"mfg-desc\">Our manufacturing site in Hangzhou houses a 5,000 m\u00b2 electronics facility equipped with SMT high-precision placement lines and MV-6eOMNI 3D AOI inspection. The adjacent 1,000 m\u00b2 R&#038;D laboratory conducts EMC, temperature cycling, humidity, vibration, shock, and IP ingress testing \u2014 all on-site, enabling rapid certification of new product variants. T\u00dcV test reports are available upon request for procurement qualification.<\/p>\n        <\/div>\n    <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-d5f0afe\" data-block-id=\"d5f0afe\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-d5f0afe-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1cd8ec3\" data-v=\"4\" data-block-id=\"1cd8ec3\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1cd8ec3-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1cd8ec3-inner-blocks\">\n<style>\n  \/* =========================================\n     Type 4 Safety Light Curtain - Vertical List Layout\n     Scope ID: #type4-procurement-list\n     ========================================= *\/\n  \n  #type4-procurement-list {\n      width: 100% !important;\n      padding: 40px 15px !important;\n      background-color: #f8fafc;\n      box-sizing: border-box;\n      font-family: inherit !important;\n  }\n\n  #type4-procurement-list * {\n      box-sizing: border-box;\n  }\n\n  #type4-procurement-list .layout-wrapper {\n      max-width: 1200px;\n      margin: 0 auto;\n      display: flex;\n      flex-direction: column;\n      gap: 40px;\n  }\n\n  \/* --- Typography --- *\/\n  #type4-procurement-list h2 {\n      font-size: 32px !important;\n      color: #303030 !important;\n      margin: 0 0 15px 0 !important;\n      text-align: center;\n      font-weight: 700 !important;\n      line-height: 1.3 !important;\n  }\n\n  #type4-procurement-list h3 {\n      font-size: 24px !important;\n      color: #303030 !important;\n      margin: 0 0 20px 0 !important;\n      font-weight: 600 !important;\n      text-align: left;\n  }\n\n  #type4-procurement-list h4 {\n      font-size: 18px !important;\n      color: #181818 !important;\n      margin: 0 0 8px 0 !important;\n      font-weight: 700 !important;\n      display: block;\n  }\n\n  #type4-procurement-list p {\n      color: #484848 !important;\n      line-height: 1.6 !important;\n      margin: 0 !important;\n      font-size: 16px !important;\n  }\n\n  \/* --- Section 1: Intro --- *\/\n  #type4-procurement-list .section-intro {\n      text-align: center;\n      max-width: 1000px;\n      margin: 0 auto;\n  }\n\n  \/* --- Section 2: Pricing Factors (Vertical List) --- *\/\n  #type4-procurement-list .factors-container {\n      background-color: #F0F0F0 !important;\n      padding: 35px 40px !important;\n      border-radius: 8px !important;\n  }\n  \n  #type4-procurement-list .factors-container h3 {\n      text-align: center !important;\n      margin-bottom: 25px !important;\n      padding-bottom: 15px !important;\n      border-bottom: 2px solid #ffffff !important;\n  }\n\n  #type4-procurement-list .vertical-list {\n      display: flex;\n      flex-direction: column;\n      gap: 20px; \/* \u5782\u76f4\u6392\u5217\u7684\u95f4\u8ddd *\/\n  }\n\n  #type4-procurement-list .list-item {\n      padding: 15px 0 15px 20px !important;\n      border-left: 4px solid #181818 !important; \/* \u6df1\u8272\u5de6\u4fa7\u8fb9\u6846\u5f15\u5bfc\u89c6\u7ebf *\/\n      background-color: transparent !important;\n  }\n\n  \/* --- Section 3: OEM & Samples (Split Row) --- *\/\n  #type4-procurement-list .info-split {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 30px;\n  }\n\n  #type4-procurement-list .info-block {\n      flex: 1;\n      min-width: 300px;\n      padding: 25px !important;\n      border-radius: 6px !important;\n      background-color: rgba(240, 240, 240, 0.5) !important;\n  }\n\n  #type4-procurement-list .info-block h3 {\n      border-bottom: 2px solid #303030 !important;\n      padding-bottom: 10px !important;\n      display: inline-block !important;\n  }\n\n  \/* --- Section 4: CTA --- *\/\n  #type4-procurement-list .section-cta {\n      background-color: #181818 !important;\n      padding: 40px 20px !important;\n      border-radius: 8px !important;\n      text-align: center;\n      display: flex;\n      flex-direction: column;\n      align-items: center;\n  }\n\n  #type4-procurement-list .section-cta p {\n      color: #F0F0F0 !important;\n      max-width: 800px;\n      margin: 0 auto 25px auto !important;\n  }\n\n  #type4-procurement-list .cta-btn {\n      display: inline-block !important;\n      background-color: #F0F0F0 !important;\n      color: #181818 !important;\n      padding: 15px 35px !important;\n      text-decoration: none !important;\n      font-weight: 700 !important;\n      font-size: 16px !important;\n      border-radius: 4px !important;\n      transition: all 0.3s ease !important;\n  }\n\n  #type4-procurement-list .cta-btn:hover {\n      background-color: #303030 !important;\n      color: #ffffff !important;\n  }\n\n  \/* --- Responsive --- *\/\n  @media (max-width:690px) {\n      #type4-procurement-list {\n          padding: 30px 10px !important;\n      }\n      #type4-procurement-list h2 {\n          font-size: 26px !important;\n      }\n      #type4-procurement-list .factors-container {\n          padding: 25px 20px !important;\n      }\n      #type4-procurement-list .info-split {\n          flex-direction: column;\n      }\n  }\n<\/style>\n\n<section id=\"type4-procurement-list\">\n  <div class=\"layout-wrapper\">\n      \n      <div class=\"section-intro\">\n          <h2>Procurement Guide: Pricing Factors, Lead Time &#038; OEM Support<\/h2>\n          <p>Safety light curtain pricing depends on resolution, protection height, detection distance class, and order volume. Rather than publishing a fixed price list, we calculate each quote based on the following factors:<\/p>\n      <\/div>\n\n      <div class=\"factors-container\">\n          <h3>Pricing Factors<\/h3>\n          <div class=\"vertical-list\">\n              <div class=\"list-item\">\n                  <h4>Resolution class<\/h4>\n                  <p>The 14mm finger detection units command a premium over 45mm body detection owing to higher beam density and narrower optical tolerances.<\/p>\n              <\/div>\n              <div class=\"list-item\">\n                  <h4>Height of protection<\/h4>\n                  <p>For a given width, taller curtains need more optical cell pairs thus increasing component cost in proportion to height<\/p>\n              <\/div>\n              <div class=\"list-item\">\n                  <h4>Detection distance class<\/h4>\n                  <p>Standard models cover D (40 m) and E (70 m). Long-range applications use the E-class optics with higher-power IR emitters.<\/p>\n              <\/div>\n              <div class=\"list-item\">\n                  <h4>Order volume<\/h4>\n                  <p>Volume pricing is available for multi-unit and repeat orders<\/p>\n              <\/div>\n              <div class=\"list-item\">\n                  <h4>Accessories<\/h4>\n                  <p>Cascading adaptors, reflective columns, safety relay modules, mounting brackets quoted separately<\/p>\n              <\/div>\n          <\/div>\n      <\/div>\n\n      <div class=\"info-split\">\n          <div class=\"info-block\">\n              <h3>OEM &#038; Customization<\/h3>\n              <p>Our core engineering team brings over 20 years of industrial safety sensor development experience. We support OEM labeling, custom protection heights, modified cable lengths, and application-specific firmware configurations. The in-house laboratory enables rapid prototyping and certification of custom variants.<\/p>\n          <\/div>\n          <div class=\"info-block\">\n              <h3>Free Sample Program<\/h3>\n              <p>We provide complimentary test units to qualified buyers evaluating the ENT series for integration projects. Test the build quality, optical alignment, response time, and environmental resistance under your actual operating conditions before committing to volume orders.<\/p>\n          <\/div>\n      <\/div>\n\n      <div class=\"section-cta\">\n          <p>As a factory-direct manufacturer, QJKH eliminates the distributor markup that typically adds 30\u201350% to the end-user price of Western-brand safety light curtains. Those savings pass directly to you. Contact our application engineering team for a detailed quote based on your configuration and volume.<\/p>\n          <a href=\"#ct-popup-788\" class=\"cta-btn\">Contact for Pricing &#038; Samples<\/a>\n      <\/div>\n\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-db90ae2\" data-block-id=\"db90ae2\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-db90ae2-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-cc6d780\" data-v=\"4\" data-block-id=\"cc6d780\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-cc6d780-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-cc6d780-inner-blocks\">\n<style>\n  \/* 3. Aesthetics & Fonts: \u5f15\u5165\u9ad8\u8d28\u91cf\u5b57\u4f53 *\/\n  @import url('https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;600;700&display=swap');\n\n  \/* 1. 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\/* \u7bad\u5934\u5411\u4e0a\u7ffb\u8f6c *\/\n  }\n  \/* -------------------------------------- *\/\n\n  \/* \u5229\u7528 CSS Grid \u5b9e\u73b0\u9ad8\u6027\u80fd\u624b\u98ce\u7434\u52a8\u753b *\/\n  #type4-slc-faq-module .faq-answer-wrapper {\n    display: grid !important;\n    grid-template-rows: 0fr !important;\n    transition: grid-template-rows 0.3s ease-in-out !important;\n  }\n\n  #type4-slc-faq-module .faq-item.active .faq-answer-wrapper {\n    grid-template-rows: 1fr !important;\n  }\n\n  #type4-slc-faq-module .faq-answer-inner {\n    overflow: hidden !important;\n  }\n\n  #type4-slc-faq-module .faq-answer-content {\n    padding: 0 24px 24px 24px !important;\n    margin: 0 !important;\n    font-size: 16px !important;\n    color: #484848 !important; \/* \u526f\u8272\u8c03 *\/\n    line-height: 1.6 !important;\n    border-top: 1px solid transparent !important;\n  }\n\n  #type4-slc-faq-module .faq-item.active .faq-answer-content {\n    padding-top: 16px !important;\n    margin-top: -4px !important;\n  }\n\n  \/* \u54cd\u5e94\u5f0f\u8c03\u6574 *\/\n  @media (max-width:690px) {\n    #type4-slc-faq-module h2.faq-main-title {\n      font-size: 28px !important;\n    }\n    #type4-slc-faq-module h3.faq-question-text {\n      font-size: 16px !important;\n    }\n    #type4-slc-faq-module .faq-answer-content {\n      font-size: 15px !important;\n    }\n    #type4-slc-faq-module .faq-icon {\n      width: 24px !important;\n      height: 24px !important;\n    }\n    #type4-slc-faq-module .faq-icon::after {\n      width: 6px !important;\n      height: 6px !important;\n    }\n  }\n<\/style>\n\n<section id=\"type4-slc-faq-module\">\n  <div class=\"faq-container\">\n    <h2 class=\"faq-main-title\">Type 4 Safety Light Curtain FAQs<\/h2>\n    \n    <div class=\"faq-accordion\">\n      \n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">What is a Type 4 safety light curtain and why does it matter?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Type 4 is the highest safety classification for electro-sensitive protective equipment under IEC 61496. It requires continuous redundant self-monitoring \u2014 if any internal component fails, the device immediately enters a safe error state, preventing the machine from operating under compromised protection. Type 4 is required wherever risk assessment identifies serious or fatal injury potential.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">What is the difference between Type 2 and Type 4 safety light curtains?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Type 2 devices run periodic self-checks at preset intervals \u2014 a fault between checks goes undetected. Type 4 devices perform continuous self-diagnosis with redundant crosschecking, so any fault is detected within a single response cycle. For high-risk applications (mechanical presses, hydraulic presses, robotic cells), Type 4 is the minimum requirement per ISO 13849 risk assessment methodology.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">How do I choose between 14 mm, 25 mm, and 45 mm resolution?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Selection is driven by risk assessment and the body part at risk. 14 mm provides finger detection \u2014 required at point-of-operation zones on presses where the operator&#8217;s hands enter the hazard area. 25 mm covers hand detection for general machine entrance guarding. 45 mm handles body detection at perimeter gates and entry points. Tighter resolution demands closer mounting to the hazard, which shortens the available safety distance and may affect your floor layout. Use our model selector for a guided recommendation.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">How do I calculate the safety distance for installation?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Use the ISO 13855 formula: S = K \u00d7 T + C. K is the approach speed (2,000 mm\/s for hands, 1,600 mm\/s for whole body). T is the total system response time (light curtain response time + machine stopping time). C is the penetration allowance based on resolution. Use our interactive calculator to compute the exact mounting distance for your setup.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">Are your safety light curtains independently certified?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Yes. Every ENT series unit is certified to IEC 61496-1,2:2020 by independent T\u00dcV testing, with full test reports on file. Our Hangzhou laboratory conducts EMC, thermal cycling, vibration, shock, and ingress testing to IP65. This is third-party verified certification, not self-declaration.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">What is light curtain muting and blanking?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Muting temporarily suspends the light curtain during an automated cycle \u2014 allowing pallets or material to pass through the beam field \u2014 then re-enables protection once the muting sensors confirm the object has cleared. Blanking permanently masks one or more specific beams to accommodate a fixed obstruction (such as a fixture or bracket) within the detection zone, without creating unprotected dead zones. Both features are configured without software on the ENT series.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">Can I get a free sample to test before ordering?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Yes. Qualified buyers receive a complimentary ENT series sample unit for hands-on evaluation. Test the optical alignment, response time, IP65 sealing, and build quality under your actual operating conditions before committing to a volume order. Contact our factory team to arrange shipment.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <div class=\"faq-item\">\n        <button class=\"faq-question-btn\" aria-expanded=\"false\">\n          <h3 class=\"faq-question-text\">Do you support OEM and customization?<\/h3>\n          <span class=\"faq-icon\"><\/span>\n        <\/button>\n        <div class=\"faq-answer-wrapper\">\n          <div class=\"faq-answer-inner\">\n            <p class=\"faq-answer-content\">Yes \u2014 custom protection heights, cable lengths, firmware, and OEM labeling are all available. Custom variants go through T\u00dcV certification in our in-house lab.<\/p>\n          <\/div>\n        <\/div>\n      <\/div>\n\n    <\/div>\n  <\/div>\n<\/section>\n\n<script>\n  document.addEventListener('DOMContentLoaded', function() {\n    const moduleScope = document.getElementById('type4-slc-faq-module');\n    if (!moduleScope) return;\n\n    const faqButtons = moduleScope.querySelectorAll('.faq-question-btn');\n\n    faqButtons.forEach(button => {\n      button.addEventListener('click', function() {\n        const item = this.parentElement;\n        const isExpanded = this.getAttribute('aria-expanded') === 'true';\n\n        \/\/ \u624b\u98ce\u7434\u6548\u679c\uff1a\u6253\u5f00\u5f53\u524d\u9879\u65f6\uff0c\u5173\u95ed\u5176\u4ed6\u5df2\u6253\u5f00\u7684\u9879\n        moduleScope.querySelectorAll('.faq-item.active').forEach(activeItem => {\n          if (activeItem !== item) {\n            activeItem.classList.remove('active');\n            activeItem.querySelector('.faq-question-btn').setAttribute('aria-expanded', 'false');\n          }\n        });\n\n        \/\/ \u5207\u6362\u5f53\u524d\u9879\u7684\u72b6\u6001\n        if (isExpanded) {\n          item.classList.remove('active');\n          this.setAttribute('aria-expanded', 'false');\n        } else {\n          item.classList.add('active');\n          this.setAttribute('aria-expanded', 'true');\n        }\n      });\n    });\n  });\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a Type 4 safety light curtain and why does it matter?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Type 4 is the highest safety classification for electro-sensitive protective equipment under IEC 61496. 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Our Hangzhou laboratory conducts EMC, thermal cycling, vibration, shock, and ingress testing to IP65. This is third-party verified certification, not self-declaration.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is light curtain muting and blanking?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Muting temporarily suspends the light curtain during an automated cycle \u2014 allowing pallets or material to pass through the beam field \u2014 then re-enables protection once the muting sensors confirm the object has cleared. Blanking permanently masks one or more specific beams to accommodate a fixed obstruction (such as a fixture or bracket) within the detection zone, without creating unprotected dead zones. 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Custom variants go through T\u00dcV certification in our in-house lab.\"\n      }\n    }\n  ]\n}\n<\/script>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Type 4 Safety Light Curtain Type 4 Safety Light Curtain (SIL3\/PLe) \u2014 High-Risk Machine Protection Built for hazardous area protection on high-risk machinery, the ENT line of Type 4 safety light curtains delivers the highest ratings available \u2014 Cat.4, PLe, SIL3. Every unit carries T\u00dcV approval to IEC 61496-1,2:2020, with 14 mm\u201345 mm resolution options [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":971,"parent":815,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-823","page","type-page","status-publish","has-post-thumbnail","hentry"],"blocksy_meta":{"has_hero_section":"disabled","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/pages\/823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/comments?post=823"}],"version-history":[{"count":0,"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/pages\/823\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/pages\/815"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/media\/971"}],"wp:attachment":[{"href":"https:\/\/industrialsafetysensor.com\/fr\/wp-json\/wp\/v2\/media?parent=823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}