ABB SU203M-C10 Safety Relay Module

ABB SU203M-C10 is a three-pole miniature circuit breaker from ABB's SU200M family, cataloged as 2CDS273337R0104. It delivers branch-circuit protection with a 10 A nominal rating and a C-curve trip characteristic, intended to trip when current rises above typical motor and general-load thresholds. The device is UL489-listed and provides a 10 kA breaking capacity, enabling safe interruption of fault currents in low-voltage 3-phase circuits. Suitable for panel and distribution-board installations in industrial environments, the SU203M-C10 is configured for three-pole operation to simultaneously disconnect all live conductors. Buyers commonly encounter it in control cabinets, machine panels, and distribution blocks where ABB protection is required. Verified sources also show the same model cross-referenced by retailers and distributors, including DigiKey and Sonepar, under the manufacturer part number 2CDS273337R0104. Some distributor listings note an IP20 enclosure rating with compatible installation in standard DIN-rail mounted panels, aligning with typical industrial applications. Overall, the SU203M-C10 offers straightforward overcurrent protection for 3-phase systems, with reliable ABB engineering backing and widespread availability through ABB channels and authorized partners. The model designation SU203M-C10 and part number 2CDS273337R0104 uniquely identify this exact unit within ABB’s SU200M family, ensuring compatibility with ABB's control panels and replacement parts.