The Telemecanique XUSL4MB40H181N is a safety light curtain — an optoelectronic guarding device that creates an invisible detection plane across a hazard zone. When a beam is interrupted, the output switches to the off state, triggering a stop signal to the machine safety circuit. This is the core of point-of-operation guarding per IEC 61496.
Deployment context
As a safety light curtain, the XUSL4MB40H181N is typically mounted at the access point of a guarded machine cell — press brakes, robotic workcells, packaging lines. The emitter and receiver columns align vertically to create a detection field; the output connects to a safety relay or safety PLC input. IP65/IP67-rated housings are standard for this class, meaning the unit withstands washdown and dust ingress common in food-and-bev and general manufacturing environments.