The Square D / Telemecanique XUSL4E14F031N is a Type 4 safety light curtain with 14 mm resolution and a 310 mm protected height. Type 4 per IEC 61496-1 means it provides the highest level of safety integrity for point-of-operation guarding — the 14 mm finger-detection resolution catches a hand reaching into the hazard zone before it contacts the danger point.
Deployed as a safety guard for machine access points — press brakes, assembly stations, robotic cells — where the 310 mm protected height covers the reach zone and the 14 mm resolution stops finger intrusion. Mounting brackets and alignment aids are specified separately; the curtain itself connects via the standard M12 quick-disconnect for emitter and receiver.