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- [SYS-01] PRODUCTSIndustrial Safety SensorsSafety light curtains, safety laser scanners, LiDAR sensors and safety relay modules for machine guarding and automation safety.View Product LinesDownload Catalog
  
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- [NODE-05] COMPANYQJKHIndustrial safety sensors, machine guarding solutions and OEM custom safety sensor support.About QJKHContact Us
  
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Type 2 vs Type 4 Safety Light Curtain

Home – Safety Light Curtains – Type 2 Safety Light Curtain – Type 2 vs Type 4 Safety Light Curtain

Type 2 vs Type 4 Safety Light Curtain — Decision Tool

Answer four questions about your application to determine the right safety category.

1. What is the most severe injury that could result from the hazard?

Minor cuts, bruises, pinching — Type 2 likely sufficient Serious lacerations, broken bones — Type 4 recommended Amputation, crushing, life-threatening — Type 4 required

2. How frequently are operators exposed to this hazard?

Rarely (maintenance only) Periodically (several times per shift) Continuously (every cycle)

3. Can the operator avoid the hazard after detection?

Yes, easily (slow-moving parts, clear escape) Possibly, with training No (fast-moving, confined space)

4. What does your site risk assessment specify?

PLc / Category 2 / SIL 1–2 — Type 2 confirmed PLd / Category 3 — Type 4 recommended PLe / Category 4 / SIL 3 — Type 4 required Not yet conducted — Assessment recommended first

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Global manufacturing standard for industrial safety sensors. Designed specifically for machine guarding, automated navigation, and operator protection worldwide.

Safety Light Curtains