That insulation rating means it's suitable for 400 V and 690 V line-fed motor circuits common in European and North American industrial panels, with headroom for transient overvoltages up to the rated impulse withstand. The screw-type main terminals accept stranded conductors up to 2x 50 mm² and solid conductors up to 2x 4 mm² — sized for the heavy power wiring of a 50–60 kW motor branch, not control-circuit signal wire. The contactor mounts on standard 35 mm or 75 mm DIN rail via the snap-on mechanism, or can be screw-fastened directly to a backplate.
Deployment context
The IP00 terminal rating confirms that the connection points are not touch-safe on their own; the contactor must be mounted inside a cabinet or covered with the supplied terminal shrouds.