Schmersal SRB 301LC Safety Relay

Schmersal SRB301LC is a dual‑channel safety relay designed to monitor two independent safety circuits and safely gate machine operation through its safety outputs. The SRB301LC‑24V variant accepts 24 V AC or 24 V DC supply and uses screw terminals for wiring (0.25–2.5 mm²). With an IP20 enclosure rating, the device is intended for installation inside control cabinets. The unit provides three safety contacts to support dual‑channel safety function and auxiliary signaling, making it suitable for guarding devices such as door interlocks, emergency stops, and guarded safety enclosures. As part of Schmersal's SRB family, it is commonly used to integrate safety sensors and monitoring modules in machinery such as presses, conveyors, and automated lines.