Schmersal International SRB 201ZH-24V Safety Relay

The Schmersal SRB201ZH-24VDC Safety Relay is a DIN-rail mounted two-hand control safety relay that runs on 24 V DC and provides dual-channel safety monitoring for guarding circuits. It features two safety contact outputs (K1 and K2) plus a single auxiliary contact, status LEDs, cross-circuit detection, feedback circuit, automatic reset, earth-connection detection, and integrated diagnostics, with a maximum switching capacity of 8 A on the safety outputs and 2 A on the auxiliary contacts, and is designed for Stop Category 0 with a PFH of 2.0 × 10^-8/h and an SIL rating compatible with IEC 61508 up to SIL 3. It is mounted on standard DIN rail EN 60715, with a glass-fibre reinforced thermoplastic housing, and supports two-hand control panels and two-hand start/stop safety circuits, making it suitable for machinery safety applications where positive-guided contacts and reliable monitoring are required.