Schneider Electric XCSA503

The XCSA model from the Telemecanique Safety switches XCS series is a key operated safety switch with an adjustable turret head, constructed from a durable Zamak material. It is designed to facilitate the control of guard doors and features one cable entry tapped at 1/2" NPT, simplifying installation. This switch is capable of achieving a high degree of protection, rated at IP67, making it suitable for demanding applications.

When properly wired according to applicable standards, this safety switch meets category 4 performance level PL e and SIL 3 requirements, ensuring reliable operation for machine safety. It operates with a configuration of 1 NC contact and 2 NO contacts, utilizing a slow-break mechanism, thus effectively preventing unintended machine starts when the guard door is opened.

In terms of operational specifications, it supports a rated insulation voltage of 300 V and a maximum operational current of 6 A at 120 V AC-15. The switch is built for longevity, with a mechanical durability of up to 1,000,000 cycles and a safety reliability data value (B10d) of 5,000,000, assuming a lifetime of 20 years limited by mechanical or contact wear. Furthermore, it operates in ambient temperatures ranging from -25 °C to 70 °C.