The Siemens 3VA2340-5KP32-0AL0 is a 3-pole IEC frame 400 molded case circuit breaker from the 3VA2 series, rated for line protection with an ETU850 LSI trip unit. Its headline breaking capacity is 55 kA at 415 V (class M), meaning it can safely interrupt fault currents up to that level without upstream damage — critical for high-fault panels where selectivity matters. The continuous current rating In is 400 A, with overload protection adjustable from 160 A to 400 A, and short-circuit protection (Isd) from 0.6 to 10 times In, plus instantaneous pickup (Ii) from 1.5 to 10 times In. This breaker ships with two auxiliary changeover switches and one trip alarm changeover switch, so you get status feedback and alarm signaling built in — no separate accessory order needed for basic panel indication.
Deployment Context
Mounts in a standard panel on a DIN rail or direct-mount plate, typical for main or branch feeder protection in industrial switchboards. The 55 kA interrupting rating at 415 V makes it suitable for high-fault installations such as manufacturing lines, data center PDUs, or commercial building mains where coordination with downstream breakers is required.