Air compressor pressure switch

[neal1980]

Hi,

I have bought a new air compressor pressure switch (ebay) and it had no electrical diagram or markings on it. (guess a china jobby)

Its looks like the one below but this one does have markings.

The one below is labelled N and P - assuming neutral and P = Live ???

Any help apreciated.

[neal1980]

hi,

the wiring I have in place are an earth, live and neutral from plug and an earth, live and neutral from the motor. On the old switch it was labelled load and motor.

When I put a continuinty tester across the terminals the top and bottom ones are joined together and when the switch is moved both sets of terminals move up to break the connection.

[neal1980]

It has 4 this is a picture of my actual switch..

[neal1980]

Thanks for the reply so to confirm



Wire it up something like this ??

The green is where I tested the contacts with a multimeter and got continuity on both the top and bottom.

Hope that makes sense and sorry for the crap drawing on phone

[neal1980]

thank you everyone its now working fine, wired as above.