The Siemens 5SN6101-7CP is a 1-pole miniature circuit breaker from the SENTRON 5SN series, rated at 400 V AC with a C-tripping characteristic. It carries a 6 kA breaking capacity per EN 60898 and a 30 kA rating per IEC 60947-2 — the IEC standard figure is the one that governs industrial panel coordination, giving you headroom for higher fault-current installations without cascading upstream.
Occupies one modular width unit at 18 mm wide, with a depth of 76 mm and an installation depth of 70 mm — the standard footprint for a single-pole MCB on a DIN rail. Accepts solid conductors up to 35 mm² at the terminals, which covers most downstream load wiring in a distribution board or sub-panel.