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Mike G.
Mike G., Master Electrician
Category: Electrical
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Experience:  Proven Professional 48 years Experience
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Air Pressure Switch Wiring For Campbell Hausfeld Air

Resolved Question:

I need to wire an air pressure switch on my Campbell Hausfeld Air compressor, Model WJ505801Aj. There are 3 wires; white, black and green.


Can you tell me which terminal each color goes into?



Submitted: 5 years ago.
Category: Electrical
Expert:  Mike G. replied 5 years ago.


The switch will connect to the black wire and break that connection to the motor.

Customer: replied 5 years ago.
There are 4 terminals that recieve either a black, white or green wire. from the bottom up, what color comes first
Expert:  Mike G. replied 5 years ago.

Campbell Hausfeld Air compressor air pressure switch <a href=wiring"/>

Customer: replied 5 years ago.
It's not that simple, there are three wires coming from the 120v supply to the switch and 3 wires going from the swith to the motor. In what order are they attached?
Expert:  Mike G. replied 5 years ago.

The sketch shows that only 2 feed and 2 load wires are attached to the pressure switch and the ground are connected together and to the ground screw. The connection is paired on either end of the switch as shown.

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