The Siemens SENTRON 5SY7250-7CC is a 2-pole miniature circuit breaker rated 50 A at 400 V AC, with a C tripping characteristic. It carries a 20 kA breaking capacity per IEC 60947-2, and 5 kA per UL 1077 and CSA C22.2 No. 235. That 20 kA SCCR at 400 V means it safely interrupts faults up to that level without cascading upstream — critical for panel coordination in industrial distribution.
Mounts on DIN rail via the quick assembly system, occupying 2 width units (36 mm). Installation depth is 70 mm; overall depth 76 mm. Accepts solid or stranded conductors from 0.75 to 35 mm². Screw terminals with a tightening torque of 2.5 to 3.5 N·m. IP20 with connected conductors — suitable for enclosed panel use, not washdown environments. Sealable, halogen-free, silicon-free. Any mounting position. Ambient temperature range -25 to +55 °C.
Overvoltage category III, touch protection integrated. Combined terminal at both top and bottom. No neutral conductor switching. Rated frequency 50/60 Hz. Maximum DC voltage rating is 72 V. Storage temperature -40 to +75 °C. Humidity influence: max 95% at 55 °C, derating to 35% at 75 °C.