Breaking capacity hits 100 kA at 400 V and 500 V, and 10 kA at 690 V — that covers most industrial fault-current scenarios up to the 690 V level without needing upstream fuses for short-circuit protection, though the spec also lists gL/gG fuse backup ratings (25 A at 400/500 V, 20 A at 690 V) for coordination when the available fault current exceeds the breaker's own rating. The thermal-magnetic overload and short-circuit elements are integrated, so no separate overload relay is needed for the motor branch.
Main circuit connections are spring-loaded terminals accepting 2x (0.5... 2.5 mm²) solid or stranded wire — no screw torque to verify, just strip and push. Clearance requirements: 50 mm upwards and downwards, 30 mm at the side, 0 mm forwards and backwards, so you can pack it tight front-to-back.