Bernstein SK-U1Z M Door Safety Interlock Switch

Bernstein's SK-U1Z M door safety interlock switch is a 1NO-1NC safety switch with a keyed actuator designed to secure guards on industrial machinery. It is rated for up to 500 VAC and 10 A, interrupting the drive control circuit when the door or guard is opened to ensure a safe stop, and it ships with a key-operated actuator. The enclosure is thermoplastics with glass-fibre reinforcement (UL94‑V0), IP65-protected, and offers three M20 x 1.5 cable entries for wiring, suitable for -30 °C to +80 °C environments. It complies with VDE 0660 T100, DIN EN 60947-1, IEC 60947-1 and DIN EN 60947-5-1 standards, and provides short-circuit protection via a 10 A gG fuse, with a mechanical life of up to about 2 million switching cycles depending on the switching system.