Rated for a voltage range of 20 to 690 V, it delivers a 100 kA breaking capacity at both 240 V and 400 V — that is the maximum fault current it can safely interrupt without welding its contacts or rupturing the housing. No ground fault detection on this variant — that is the ZW98 suffix's story: a special version without the ground-fault module.
Clearance requirements: 20 mm upwards and downwards, 9 mm at the sides, zero forwards or backwards. That 9 mm side gap is tight — adjacent devices can sit nearly flush, but you still need room for the screwdriver on the M3 main contact terminals. Terminals accept 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²) solid or stranded wire — typical for control circuit connections. The screw-type terminals are rated for the main current circuit.