The 3VA2340-5HN32-0DF0 is a 3-pole IEC frame 400 molded-case circuit breaker with a 55 kA breaking capacity at 415 V (class M). The ETU350 electronic trip unit gives LSI protection: long-time (Ir) adjustable 160–400 A, short-time (Isd) 1.5–10 x Ir, and instantaneous (Ii) fixed at 10 x In. This selectivity profile suits it as a main or feeder breaker in a distribution panel where you need coordination with downstream devices.
Built-in accessories and deployment context
The auxiliary and alarm switches feed status back to a PLC or indicator panel. The nut keeper kit simplifies panel mounting on a DIN rail or backplate; no loose hardware to lose during installation.