Siemens 3VA2325-5MN32-0HB0 is an IEC frame 400 motor protection circuit breaker from the 3VA2 series, rated 250 A with a 55 kA interrupting capacity at 415 V AC. The ETU350M LSI electronic trip unit gives you separately adjustable overload (Ir = 100…250 A) and short-circuit (Isd = 3…15 x Ir) protection, plus a fixed instantaneous pickup at Ii = 15 x In. This one ships with a factory-installed shunt trip on the left side, 24 V AC 50/60 Hz or 24–30 V DC, wired for a remote trip signal.
Mounts on a 3VA2 frame 400 base, DIN-rail or screw-mount in the panel. The shunt trip sits on the left accessory slot; the right slot accepts a second auxiliary contact block (not included). Wire the shunt trip coil to a 24 V supply — it draws momentarily on trip command, no continuous hold current. The nut keeper kit saves a few minutes during panel build: no loose hardware to drop behind the backplate.