Rated at 22 kW at 500 V in AC-3 duty (the standard motor-switching category per IEC 60947-4-1), it handles the locked-rotor inrush of a 3-phase induction motor up to that power. At 690 V the AC-3 rating drops to 11.4 kW, reflecting the higher voltage stress on the arc chutes. The 24 VDC coil draws a holding current that keeps the magnet sealed down to about 18 V; dropout happens below that threshold.
Depth is 130 mm — enough clearance for the arc chamber and the screw-terminal wiring.
Main power terminals accept stranded wire from 0.75 mm² up to 25 mm² (two conductors per clamp), or solid wire from 0.25 mm² up to 2.5 mm². At 40 °C ambient, the minimum permissible cross-section is 16 mm² — that's the thermal sizing floor for full rated current.
Environmental range and compliance
The storage range exceeds the operating range because it governs shipping and idle storage, not running conditions.