The Siemens 5SN6263-7CP is a 2-pole miniature circuit breaker from the SENTRON 5SN series, rated for 400 V AC multi-phase operation at 50 Hz. Its C-curve tripping characteristic handles moderate inrush from motor and lighting loads.
Accepts solid conductors up to 35 mm² — enough for downstream sub-feed or large-gauge branch circuits. The 76 mm depth matches standard SENTRON enclosure cutouts; no rework needed for a direct swap with other 2-MW units in the same family.
