Schneider Electric XCS-B703 Safety Limit Switch

Schneider Electric XCS-B703 Safety Limit Switch (Manufacturer Part Number XCS-B703) is an industrial safety switch from the Telemecanique XCS family designed to monitor and secure guard doors on hazardous equipment in packaging machines, conveyors, robotic cells, CNC machines, and automated production lines. This safety limit switch features a key-operated turret head and positive-opening contacts for reliable machine shutdown when guards are opened. The device provides 2 NC and 1 NO contacts with slow-break, break-before-make operation, actuator locking with push-button release, and a Zamak metal housing with IP67 protection. Electrical connections use screw terminals for 0.5–1.5 mm² conductors, and there is one cable entry tapped for 1/2 in NPT. With a maximum operating rate of 10 cycles per minute, it supports safety levels up to Category 4, PL e, SIL 3 when used within an appropriate safety system, and is certified by CSA and UL. Common replacements include XCSA703, XCSC703, XCSD703.