The AF1250-30-11-70 is a Type Contactor rated for 600V AC switching, with a control coil that accepts 100-250V AC (50/60Hz) or 100-250V DC. That dual AC/DC coil range means you can drop it into a panel running a 120V control transformer or a 220V DC bus without swapping coils — one part covers both. The 600V AC main contact rating is the maximum line voltage it can interrupt; for motor loads, you'd size it to the motor's full-load current at the actual supply voltage.
Panel integration
The 100-250V AC/DC coil simplifies wiring in mixed-voltage cabinets — no separate coil-supply transformer needed if you have a 220V DC bus in the enclosure. Verify the auxiliary contact configuration (30-11 means 3 NO + 1 NC) matches your interlock logic before finalizing the panel layout.