What this breaker carries and where it fits
The 3VA1225-6EF32-0BE0 is a Siemens 3VA1 IEC frame 250 molded-case circuit breaker rated for 250 A continuous, with a class H interrupting capacity of 70 kA at 415 V AC — that figure governs its fault-clearing ability on a 415 V three-phase system, meaning it can safely interrupt a bolted fault up to that level without rupturing or welding contacts. The TM240 thermal-magnetic trip unit provides overload protection adjustable from 175 A to 250 A (Ir) and short-circuit protection (Ii) set at 5 to 10 times In, so the breaker coordinates with downstream feeders and motor starters across a wide band of fault currents. This unit includes a 24 V DC undervoltage release (UVR), a nut keeper kit, and four HQ auxiliary switches — the UVR trips the breaker when control voltage drops below its dropout threshold, a standard requirement for emergency-stop and safety isolation circuits in industrial control panels.