Rated operating voltage spans 20 to 690 V AC, with a 100 kA breaking capacity at 240 V AC and 50 kA at 400 V AC — that SCCR headroom means it safely interrupts bolted faults up to those levels without cascading upstream, critical for panel selectivity studies. Ground fault detection is not included — that's handled separately if your circuit requires GFCI.
Mounting position is any, but the clearance zones are specified: 20 mm upwards and downwards, 9 mm at the side, 0 mm forwards and backwards. That side clearance is tight — adjacent breakers or terminals must leave at least 9 mm for air circulation and arc-quenching. Main circuit terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire, terminated with a Pozidriv size 2 screwdriver. For the control circuit at 24 V or 60 V, the auxiliary contact draws 0.3 A. At 240 V no external fuse is required; at 400 V the recommended backup fuse is gL/gG 35 A, stepping down to gL/gG 25 A at 500 V and 690 V. That fuse coordination protects the breaker's own short-circuit capacity.