Key ratings and what they mean for fit
The 3VA1180-6EF36-0HA0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 70 kA interrupting capacity at 415 V AC — breaking capacity class H. That rating means it can safely clear a bolted fault up to 70 kA without rupturing, which is the figure a panel designer checks against the available fault current at the distribution point. The 80 A continuous current rating (In) is set by the TM240 thermal-magnetic trip unit; the overload protection (Ir) is adjustable from 56 A to 80 A, and the instantaneous short-circuit pickup (Ii) is adjustable from 5 to 10 times In (400 A to 800 A). That adjustability lets you coordinate with downstream branch breakers without swapping the trip unit.
Deployment context
This breaker mounts on a DIN rail or directly onto a panel backplate via the frame's integral lugs. The clamp (box lug) terminals accept copper or aluminum conductors — typical for main or feeder protection in a 400 V industrial distribution board. The shunt trip (STL) operates on 12–30 V DC or 24 V AC, allowing remote tripping from an emergency-stop circuit or a PLC output.