The Siemens 5SN6325-8CP is a 3-pole miniature circuit breaker from the SENTRON 5SN series, designed for branch-circuit overcurrent and short-circuit protection in residential, commercial, and light-industrial distribution boards. Rated supply voltage is 400 V AC at 50 Hz, with a maximum operating voltage of 440 V AC for multi-phase operation. The C-curve tripping characteristic means it handles moderate inrush currents typical of motor and lighting loads without nuisance tripping. Breaking capacity is rated at 6 kA according to EN 60898 and 15 kA according to IEC 60947-2 — the higher IEC figure applies when the breaker is used in industrial distribution where fault currents are larger. For DC circuits, the maximum rated voltage is 72 V.
Integration notes
Dimensions are 90 mm height, 54 mm width, 76 mm depth with a 70 mm installation depth behind the panel. The breaker accepts solid conductors up to 35 mm², which covers most downstream feeder and branch wiring.