The Siemens 5SN6201-8CP is a 2-pole miniature circuit breaker from the SENTRON 5SN series, sized at 2 modular width units (36 mm) with a 76 mm depth and 70 mm installation depth — standard DIN-rail footprint for a residential or light-commercial distribution board. It carries a supply voltage rating of 400 V AC at 50 Hz, and its breaking capacity is dual-rated: 6 kA according to EN 60898 and 30 kA according to IEC 60947-2.
The 2-pole configuration with a 400 V AC rated voltage means it protects two phase conductors in a single-phase or split-phase circuit, or one phase plus neutral in a 230/400 V system. The 6 kA EN 60898 rating covers the standard domestic/small commercial installation; the 30 kA IEC 60947-2 rating applies when the breaker is used in an industrial distribution board where the fault level is higher — the actual rating depends on the standard the local code requires. Mechanical service life of 10 000 operating cycles typical for this class of MCB.
Wiring and terminal capacity
Accepts solid conductors up to 35 mm², which covers standard panel wiring for a 2-pole MCB at this voltage class. The 70 mm installation depth matches the standard SENTRON enclosure depth; no special deep box needed.