Industrial SU201M-C4 Safety Relay Module For 24V DC Systems

ABB SU201M-C4 is a compact, single-pole miniature circuit breaker designed to protect branch circuits in industrial control panels and 24 V DC systems. It has a nominal current rating of 4 A (In = 4 A) and a 10 kA short-circuit breaking capacity, with a C-type trip characteristic for reliable overcurrent protection. The device is DIN-rail mountable and occupies 1 module width, and it is UL 489 listed for use in electrical distribution. The SU201M-C4 supports AC and DC applications, with voltage ratings up to 277 V AC and up to 96 V DC in appropriate configurations, making it suitable for mixed-supply environments often found in industrial automation. Identified in ABB catalogs as 2CDS271337R0044, this model integrates with ABB control and distribution architectures and provides straightforward, fast interruption of power in fault conditions.