3ph contactor

[Knobhead]

How did you go on with this ?

 

[Benny_Boy]

How did you go on with this ?

Ha, Well I went down the other day and the contactor was knackered. But he said "Don't worry, I was wired straight into that thing anyway" (pointing at the pressure switch).

I told him I wouldn't wire it up without OLP for the motor and he didn't want to pay for a new contactor, so I've left him with it!
No doubt he'll be cremating himself as we speak.

Thanks for your input Tony anyhow.

 

[Knobhead]

Some old compressors (and I mean old) did have three phase pressure switches. I’ve not seen one for years.

 

[Benny_Boy]

Some old compressors (and I mean old) did have three phase pressure switches. I’ve not seen one for years.

it was this type of jobbie but bigger, older, and more battered.

Air Compressor Pressure Switch 415v 3 phase | eBay UK

 

[Knobhead]

Oh well, so long as he knows there’s no O/L protection it’s up to him.

 

[jeffducati]

thats what i like about us all we are all willing to help and thats a genuine chap and two pints only you old softy!!!
any way another quick check is the actual wiring to to contactor if there is no neutral arouind then assume 230 usully around there on side or look at top the answer is there for stitching
but your problem is solved and you will learn something valuable