The 1089943875 motor contactor is the main power contactor that is used to send the voltage from your incoming power lines into the motor. This is a 3-pole contactor used for the control of electric motors. It is ratedto handle 32 amps
The part number may be displayed in your manual as 1089943875, 1089 9438 75 or 1089-9438-75.
This motor contactor was used on several rotary screw air compressors manufactured by Chicago Pneumatic, Atlas Copco and Quincy. Please contact us with your serial number for confirmation this is correct for your compressor.
2203 0387 00