The ABB ZA110-75 is a contactor coil from the A110 series, classified under Contactors and Starters — specifically Contactor & Starter Coils. This is the replacement coil for an A110 frame contactor; if you're rebuilding a contactor on a panel, this is the part that goes into the magnet assembly.
This coil is designed for the ABB A110 contactor frame. If you're swapping a failed coil on an existing A110 contactor in a panel, the ZA110-75 is the direct replacement part. No modification to the contactor base or wiring needed — it's a drop-in coil change.