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S10xGN 02-21-2007 01:22 PM

Electrical Device?
 
Hi All,

Ya'll have about got me talked into upgrading my PVC air lines. When I do, I want to move my compressor to my back garage (out of earshot) about 60 feet farther out from the house. I'm concerned that it may burn up if something happens and I can't hear it (although chances are much slimmer with metal piping vs PVC).

I'm looking for a breaker or switch that can permanently remove power (trip) after it's attached device (compressor) pulls power for 10 minutes or so without cycling, then requires a manual reset. This could prevent the compressor from overheating and possibly causing a fire. Probably overkill, but since I'm redoing things anyway...

Russ

docvette 02-21-2007 04:18 PM

Doc here,

Not sure what Compressor you have, or power to it, But you may want to see if a Motor starter relay with heaters and thermal overloads can be used for this purpose, It would open a heater (opening a leg) or thermal overload, if the motor was drawing too much current, thus shutting it down.

Doc :pimp:

S10xGN 02-22-2007 01:13 PM

Doc,

This (if it exists) would be more like a timer than an overload. My compressor is a 7.5 HP 220V that draws around 30A at full load...

Russ

docvette 02-22-2007 09:03 PM

Doc Here, :pimp:

Here is what you want:

Motor overload and starter

Doc :pimp:

Huskinhano 02-23-2007 09:30 AM

Quote:

Originally Posted by docvette
Doc Here, :pimp:

Here is what you want:

Motor overload and starter

Doc :pimp:


That will work but the only thing you must be aware is that it has to be a double pole to break both leads for 240V. For 120 volt you only need single pole. His compressor motor should have built in over load protection anyway if it's single phase.

S10xGN 02-23-2007 01:37 PM

I'm not convinced that's what I need. I don't think my compressor will ever "overload" electrically, but I can imagine it running continuously (I.E. broken airline) and getting hot enough to catch fire. Being out of hearing range, that would be a concern.

Russ

Huskinhano 02-23-2007 02:07 PM

Quote:

Originally Posted by S10xGN
I'm not convinced that's what I need. I don't think my compressor will ever "overload" electrically, but I can imagine it running continuously (I.E. broken airline) and getting hot enough to catch fire. Being out of hearing range, that would be a concern.

Russ

You could install a "run" light in your garage that comes on when the motor runs.


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