The coil is screw-type terminals, and the main contact wire range accepts solid or stranded 1 to 10 mm², with finer control wiring accommodated at 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²).
The contactor is rated for 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, and 0.6 A at 440 V — these are the maximum continuous currents it can switch at those voltages. The AC-3 maximum switching frequency is 1 000 operations per hour, which is typical for motor starting duty; the AC-4 maximum drops to 300 operations per hour for inching or plugging duty where the contactor makes and breaks full load current.
Depth is 141 mm, height 85 mm. The screw-type terminals accept the wire sizes listed — no special tools beyond a screwdriver and a ferrule crimper for stranded wire.