The Siemens 3VA1180-5EF32-0HH0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 55 kA interrupting capacity at 415 V (class M). Rated In=80 A, it uses a TM240 thermal-magnetic trip unit — overload protection adjustable Ir=56…80 A, short-circuit pickup Ii=5…10×In. That 55 kA at 415 V means it can safely clear a fault up to that level on a 415 V line without upstream devices needing to coordinate; useful for main or feeder duty in a panel where fault current is high.
Mounts on a DIN rail or panel-mount in a standard enclosure. The integrated shunt trip (STL) operates on 12–30 V DC or 24 V AC 50/60 Hz — remote trip from a safety relay or PLC output is straightforward. Two auxiliary switches HQ and one trip alarm switch HQ give status feedback for the control system. The nut keeper kit keeps the terminal hardware captive during wiring, which saves time on a panel build.