The Siemens SENTRON 5SY5132-6CC is a 1-pole miniature circuit breaker rated for DC circuits: 32 A continuous, 220 V DC nominal, with a 10 kA breaking capacity per IEC 60947-2.
DC-rated and built for industrial panels
This breaker is designed specifically for DC operation (type of voltage DC per), with a maximum operating voltage of 250 V DC. The 10 kA interrupting rating at 220 V DC is tested to IEC 60947-2, the standard for industrial circuit-breakers — not the residential EN 60898. That matters when the fault current on a 24 V or 48 V DC bus in a control panel can exceed what a general-purpose AC MCB can clear. The 76 mm depth leaves clearance for wiring behind the panel door. IP20 with connected conductors is standard for a live-front MCB — adequate inside a sealed enclosure, not for wet-well or washdown exposure without an outer cover. Halogen-free and silicon-free construction reduces corrosive off-gassing in a fire — a requirement in some rail, marine, or high-reliability industrial specs.