The 480 V 60 Hz coil matches North American line voltages, and the 30 kW AC-2 rating at 400 V covers wound-rotor or slip-ring motor duty.
For across-the-line starting of standard squirrel-cage motors, the AC-3 capability is the relevant figure; the contactor handles 37 kW at 500 V and 18.6 kW at 690 V. AC-4 reversing or inching duty is rated 55 A at 400 V. Mechanical life is listed at 10 million cycles typical. At the maximum AC-3 switching rate of 1,000 operations per hour, that's over 10,000 hours of continuous cycling — realistic for a conveyor or pump duty that cycles every few seconds.
Wiring and integration
Main circuit terminals accept solid conductors 2x (0.25 to 2.5 mm²) and stranded conductors 2x (10 to 50 mm²) — that covers control wiring through motor power cables up to roughly 70 A. The auxiliary contact block on the front (the 3AV60 variant) is wired separately via the same screw terminals. Dimensions are 70 mm wide, 146 mm high, 139 mm deep — the S3 frame.