ABB ST201M-C32 Safety Relay Module, 2-Channel, 24V DC

ABB ST201M-C32 is a 1‑pole miniature circuit breaker from ABB’s ST200M family, delivering reliable overcurrent protection for a single circuit up to 32 A with a C‑curve trip characteristic. It is rated for 240/277 V AC and up to 60 V DC, and provides a short‑circuit interrupting rating of 10 kA (UL 1077), making it suitable for protecting feeders, control wiring, and small loads in commercial and light industrial panel boards. This DIN‑rail compatible device is designed for use in distribution boards and equipment cabinets where compact, predictable protection is essential, featuring thermal‑magnetic trip so fault currents are cleared quickly while minimizing nuisance trips during normal inrush. The ST201M-C32 is part of ABB’s ST200M line, with higher‑pole variants available (for example ST202M‑C32) when multi‑pole protection is required. In practice, designers and technicians specify this model to safeguard individual circuits such as lighting runs, control circuits, and auxiliary loads, ensuring clear, code‑compliant disconnection in the event of overcurrent conditions. With its compact form factor and standardized performance, ST201M-C32 provides straightforward integration into standard ABB panels and compatible DIN rail systems, delivering consistent protection without complicating installation or maintenance.