The Siemens SENTRON 3VA1112-6EF32-0HH0 is a 3-pole molded case circuit breaker rated for a continuous current of 125 A at ambient temperatures up to 50 °C, derating to 112.5 A at 70 °C. Its interrupting capacity hits 220 kA at 240 V AC, 154 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — so it handles high-fault utility feeds and transformer secondaries without cascading upstream. The TM240 thermal-magnetic release provides fixed overload and short-circuit protection for line distribution, not motor starting. Front IP40 suits panel-mount indoor use; no communication or ground-fault monitoring is built in.
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard SENTRON 3VA footprint that fits existing DIN-rail or screw-mount panel layouts. The shunt trip (STL) and auxiliary switch block (2 aux + 1 alarm) are factory-integrated, so no separate accessory wiring is needed for remote trip and status feedback.