Author Topic: I Lost Another Air Compressor Pressure Switch  (Read 85 times)

Offline GNAP

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I Lost Another Air Compressor Pressure Switch
« on: November 06, 2020, 04:26:32 PM »
over the last 10-12 years, Ive lost about 6 air compressor pressure switches. They last roughly about 2 years, then one of the contacts burns off, then I have a dead air compressor. I lost one last night, and finally decided to correct the pressure switch issue. I finally assembled enough parts to install a contactor rated for 4 times the amp draw of the motor, I picked up 2 cabinets (customer was sending them to the scrap dumpster) and work graciously donated all of the pieces and parts necessary to finish up the installation.

The air compressor runs perfectly, the pressure switch now only carries the load of the contactor coil, and hopefully will last a little longer, I have a new pressure switch on order, the one being used now has one burnt contact and one functional one, the functional one will hopefully last until the new one gets here.
jack

Offline jabberwoki

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Re: I Lost Another Air Compressor Pressure Switch
« Reply #1 on: November 06, 2020, 07:57:41 PM »
Nice, that little blue box was a great score.
Is the need enough? or does the want suffice?

Offline DeadNutz

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Re: I Lost Another Air Compressor Pressure Switch
« Reply #2 on: November 06, 2020, 08:23:43 PM »
Very nice clean install and jabber right on the good score.

Offline slip knot

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Re: I Lost Another Air Compressor Pressure Switch
« Reply #3 on: November 06, 2020, 08:26:10 PM »
That contactor should take all the load without issue. I bet the old pressure switch would work fine with no load on it.