ABB ST201M-C0.5 DIN Rail Mounted Safety Relay Module

ABB ST201M-C0.5 is a single‑pole, DIN‑rail mounted miniature circuit breaker with a 0.5 A rated current and a C‑curve trip characteristic, designed to protect low‑current control circuits in industrial panels. The device is UL 1077 listed and RoHS compliant, intended for 230 V AC operation and installed on standard DIN rails with a 1‑module footprint. It offers a 10 kA interrupting capacity (kAIC) at its rated voltage and an IP20 enclosure, aligning with ABB’s System pro M Compact family of modular protection devices. The ST201M-C0.5 model provides thermal‑magnetic protection for individual circuits such as sensors, actuators, or small relays in automation architectures, facilitating straightforward replacement and integration into existing panel layouts.