Siemens 3SK1111-1AB30 Sirius Safety Relay E02 5A Max 24V Rel Cont B300 R300

Siemens 3SK1111-1AB30 SIRIUS Safety Relay is a Basic Unit in the SIRIUS Standard series designed for autonomous safety switching in industrial automation. It combines three normally open contacts with a single normally closed signaling contact, all driven from Us = 24 V AC/DC via screw-terminal connections, and each normally open channel is rated to switch up to 5 A. The device supports IP20 protection, is finger-safe, and provides an insulation voltage rating of 300 V, making it suitable for standalone safety circuits such as safety interlocks, emergency-stop interfaces, and door-safety applications in machines. As part of the Siemens SIRIUS family, the 3SK1111-1AB30 is intended for safety-required monitoring of circuits and outputs, delivering a compact, reliable solution for implementing monitored safety relays in control architectures.