What the 65 A rating means for your motor circuit
The A45-22-00-84: The 65 A continuous rating on this 4-pole contactor covers motor full-load current up to that figure in AC-3 duty — the typical switching category for squirrel-cage motors during starting and running. For a 3-phase 460 V motor, 65 A corresponds to roughly 50-60 HP, depending on the motor efficiency and service factor. The 4th pole can switch a separate control circuit or neutral, which simplifies panel wiring for applications needing both power and auxiliary switching in one device.
Coil voltage and auxiliary contact configuration
The 120 V AC coil matches standard North American control transformer secondaries — no separate DC power supply needed for the coil circuit. The built-in 2 NO + 2 NC auxiliary contacts eliminate the need for a separate auxiliary contact block in many applications, saving DIN rail space and reducing wiring. The A-Line series uses an A16 frame, which is the physical footprint for this current class.