Siemens 3VA1332-6EF32-0AH0 is a 3-pole IEC molded-case circuit breaker from the 3VA1 series, Frame 400. Breaking capacity class H delivers 70 kA Icu at 415 V AC — enough to handle high-fault utility feeds without cascading upstream. Rated In=320 A with a TM240 thermal-magnetic trip unit; overload protection adjustable Ir=224…320 A, short-circuit pickup Ii=5…10 x In. That adjustable thermal band lets you fine-tune the continuous-current setting to the actual load, not just the breaker frame.
Rated for 3-pole, 3-phase line protection. The TM240 trip offers both thermal (overload) and magnetic (short-circuit) elements in one unit — no separate relay needed for basic motor or feeder protection. Adjustable Ir range covers 224 A to 320 A, so the same breaker can be dialed for a 250 A feeder today and re-tasked for a 315 A load next year. Short-circuit magnetic pickup set between 5x and 10x In (1600–3200 A) gives flexibility to ride through motor inrush without nuisance tripping.
Factory-fitted with 2 auxiliary switch changeover contacts (H type) and 1 trip alarm switch changeover. These integrated aux contacts eliminate the need for a separate accessory kit for status feedback to a PLC or remote indication panel. Nut keeper kit included for secure mounting in the switchboard.