The ABB AF305-30-22-13 is a 3-pole contactor rated for 312 A, with a control coil accepting 100-250 VAC/VDC.
What the 312 A rating means for fit
The 312 A rating is the contactor's thermal current (Ith) at 40 °C, which governs its continuous current-carrying capacity in open air. For motor switching, derate to the AC-3 duty rating — typically around 185-200 A for this frame size — so it suits 90-110 kW 400 V three-phase induction motors. Always verify the specific AC-3/AC-1 rating in the datasheet for your load type.
It switches motors on conveyors, pumps, compressors, and fans in industrial plants. The 100-250 VAC/VDC coil gives flexibility across control voltages common in global installations.