The Siemens 3VA2225-6HN42-0BA0 is a 4-pole IEC frame 250 molded-case circuit breaker with a class H interrupting rating of 85 kA at 415 V AC — enough to handle high-fault industrial feeds without cascading upstream. The ETU350 electronic trip unit provides LSI protection (long-time, short-time, instantaneous) with overload pickup Ir adjustable from 100 A to 250 A, short-time pickup Isd from 1.5 to 10 × Ir, and instantaneous fixed at 10 × In. Neutral protection is adjustable off / 50 % / 100 %, which matters for 4-wire distribution where you need to coordinate the neutral pole with the phase poles. The breaker includes an undervoltage release (24 V DC) integrated as an accessory — that release is shared with the 3VA1 100/160 frame family. The busbar-connection variant lands directly on a panel bus.
Because it is a current-production part with a programmable ETU and a specific undervoltage release coil voltage, the lead time can vary by configuration.
The 85 kA @ 415 V class H rating suits industrial service-entrance and feeder applications. The ETU350's adjustable short-time delay (Isd) allows zone-selective interlocking with downstream 3VA1 or 3VA2 breakers. The instantaneous pickup at 10 × In is fixed.