The coil draws a latching current through a 112.06 Ohm winding at 20 °C, then switches to a higher-resistance 13256 Ohm unlatching winding to hold the contactor closed with reduced power consumption. Operating time runs 50 to 100 ms for unlatching and 40 to 80 ms for latching, which governs how fast the contactor picks up and drops out in your motor or heater circuit.
The 480 V AC control circuit voltage is the nominal operating level for the coil — it must match your panel's control transformer output. The voltage tolerance band of 0.85 to 1.1 Uc for both latching and unlatching means the coil will reliably operate between roughly 408 V and 528 V AC.