At 380–415 V AC the breaking capacity is 36 kA Icu, and at 440 V AC it is 25 kA Icu, so the voltage you are switching determines the fault-clearing headroom. The thermal-magnetic trip gives overload protection via the bimetal element and short-circuit protection via the solenoid; the earth-leakage protection is integrated, so you do not need a separate add-on module for ground-fault sensing on the load side.
Deployment context
This breaker mounts to a backplate (fixed mounting, not DIN rail), with front-front connections — both line and load terminations are on the front face, which simplifies bus-bar routing in a distribution panel but means you need clearance in front for the cable lugs.
