The Square D / Telemecanique XUSL4E30H136N is a Type 4 safety light curtain with 30 mm resolution and a 1360 mm protected height. Type 4 per IEC 61496-1 means it is rated for the highest level of safety integrity — it can detect a 30 mm object (finger or hand) reaching into the hazard zone and signal the safety circuit to stop the machine before contact. That 1360 mm protected height covers a wide vertical opening, typical for press brakes, assembly stations, or robot cells where personnel access needs to be guarded.
Mounts as a pair of emitter and receiver columns, typically on machine frames or standoffs. The 30 mm resolution and Type 4 safety rating mean it integrates directly into a safety-rated PLC or safety relay loop — no extra interface needed for SIL 3 / PL e applications. Alignment aids and status LEDs on the housing simplify commissioning.