The Siemens 5SY5416-6 is a SENTRON miniature circuit breaker with a B tripping curve and four poles, rated for 400 V AC and 880 V DC. The 10 kA breaking capacity under IEC/EN 60898-2 and the additional 15 kA DC rating per IEC 60947-2 tell you it can safely interrupt fault currents up to those levels without upstream cascading. Mounts on a DIN rail via the quick-assembly system, fitting a standard 72 mm wide footprint (4 modular width units) with 70 mm installation depth.
Deployment context
The 72 mm width (4 MW) and 76 mm depth mean it slots into standard DIN-rail backboards; account for the 70 mm installation depth when sizing gland plates. The sealable option matters for lockout/tagout procedures in industrial panels.
