ABB ST201M-B32 Safety Relay Module

ABB ST201M-B32 is a 1-pole System Pro M Compact miniature circuit breaker (MCB) rated 32 A with a Type B thermal-magnetic trip characteristic, designed to protect a single circuit in low-voltage distribution panels. This DIN-rail mounted device belongs to ABB’s System Pro M Compact family and is suitable for single-phase circuits in commercial and light industrial installations. It supports voltages up to 480Y/277V AC and provides a short-circuit interrupting capacity up to 10 kAIC, with compliance to UL 1077. The ST201M-B32 designation corresponds to ABB catalog references such as 2CDS271334R0325/S201M-B32, and it is used to safeguard branch circuits like lighting, outlets, and control circuits within panelboards that employ ABB protection components.