Deployment Context
As a safety light curtain, the XUSL4E4BB091NM mounts on guarding frames or machine pedestals, typically with the emitter and receiver aligned across the hazard opening. The beam array creates a detection zone that, when broken, triggers the safety circuit (via a safety relay or safety PLC input) to remove power from the guarded motion. This is a Type 4 (highest reliability) device per IEC 61496, suitable for PL e / SIL 3 applications up to the specified resolution and range.
While the exact resolution and protective height are not listed in this summary, the XUSL4E4BB091NM designation follows the Telemecanique XUSL4E4B family naming convention — the '4' indicates Type 4 per IEC 61496-2, and the suffix encodes the beam count and detection range. In practice, the detection zone is sized to cover the hazard opening; the beam spacing determines whether it catches a finger (14 mm resolution) or a hand (30 mm). The '091' in the code likely refers to a 910 mm protective height. For exact specifications, the part's datasheet provides the resolution, range, and response time needed to calculate the minimum safe distance per ISO 13855.