The ABB ZA110-89 is a contactor coil — the replaceable solenoid that pulls in the contactor armature when energized. It carries dual voltage ratings: 110-115 V at 50 Hz and 115-127 V at 60 Hz, which covers common European and North American control voltages in a single coil.
The ZA110-89 mounts into the matching ABB contactor frame. Voltage tolerance on the coil is set by the design: it pulls in reliably at the lower end of the range and holds without overheating at the upper end, but a sustained voltage outside the rated band risks chatter or coil burnout. For a line-down replacement, verify the contactor frame matches — the coil footprint and stroke are specific to the series.