Siemens 5SN6316-7CP — 3-Pole MCB, C-Curve, 6 kA / 15 kA
It is rated for 400 V AC supply voltage at 50 Hz, and its breaking capacity is specified at 6 kA according to EN 60898 and 15 kA according to IEC 60947-2 — the higher figure applies when the breaker is installed per the industrial standard's requirements, giving the specifying engineer headroom for higher prospective fault currents in commercial or light industrial distribution boards. It accepts solid conductors up to 35 mm², which covers most downstream feeder and branch-circuit wiring in a sub-distribution board.
Ratings in Context
Rated for multi-phase operation up to 440 V AC maximum, and for single-phase operation also at 440 V AC. The DC rating is 72 V maximum, which limits its use in DC circuits to low-voltage control or battery applications. Power loss is 1.6 W per pole under rated current at AC in hot operating state — relevant for thermal coordination within a multi-breaker enclosure.
