En Iec 61496 __full__ Jun 2026

| Parameter | Type 2 (Basic) | Type 4 (High) | | :--- | :--- | :--- | | | PL c (EN ISO 13849-1) / SIL 1 (EN 62061) | PL e / SIL 3 | | Fault Reaction | Loss of safety function at single fault (detected) | No loss of safety function at single fault | | MTTFd | Low to Medium | High | | Test Pulse Immunity | Standard | Rigorous (resistance to high-frequency pulses) |

The EN IEC 61496 series is the benchmark standard for designing and selecting non-contact safety devices used to protect personnel in industrial environments. It addresses equipment that detects the presence of a human body (or body part) using optical or electronic means—most commonly and safety laser scanners . en iec 61496

EN IEC 61496 does not exist in a vacuum. It works alongside ISO 13849-1, which focuses on the "Safety-Related Parts of Control Systems." While IEC 61496 dictates how a light curtain is built, ISO 13849-1 dictates how that light curtain is integrated into the machine's overall safety logic. | Parameter | Type 2 (Basic) | Type