The Siemens 5SL3250-7CC is a 2-pole miniature circuit breaker (MCB) rated for 400 V with a 4.5 kA interrupting capacity, C-trip curve, and 50 A current rating. The C-curve means it trips between 5 and 10 times rated current — standard for inductive and motor-starting loads where inrush is higher than resistive circuits. At 50 A per pole, it protects downstream branch circuits in commercial and light industrial panels where the fault current available at the panelboard stays under 4.5 kA.
Snap-on mounting to 35 mm DIN rail per EN 60715. The 2-pole width occupies two modular units (36 mm) on the rail. Rated for use in Siemens ALPHA 6-series distribution boards and standard DIN-rail enclosures. The 50 A rating and C-curve suit it for feeder protection on motor circuits, lighting banks, and general-purpose loads where the upstream device coordinates within the 4.5 kA SCCR.