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.
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. The nut keeper kit keeps the terminal hardware captive during wiring, which saves time on a panel build.