Application of Spring Contacts

Old 10-16-17, 12:48 PM
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Application of Spring Contacts

I am needing a way to transfer 120 volts AC thru two hinged wall edges without exposing any wiring. I have some connectors as shown in the picture and have them assembled in a test fixture to simulate the actual application. I will have a safety switch also in the wall edge that will prevent voltage from going to the contacts of the connector until the hinged walls are in the full open position which would prevent someone from accidently touching the HOT contacts . These connectors are from China and little info can be found other than "12 Volt Connectors". I am using them on 120 Volts AC. I measured the wires which are stranded and they are about .030" (or 20 gauge best I can tell). I have an ammeter checking the current of everything that will be going thru it, and on the 10 amp scale, I get .23 to .24 amps on the AC side.
It seems this can work very well but would like some "Expert" opinions. I know just enough to be dangerous.


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Old 10-16-17, 12:54 PM
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Should work but I would put either a push button or magnetic switch in line before contacts to shut off current when door is opened. Than you would not need a wall switch.
Old 10-16-17, 12:59 PM
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Also the live side of the circuit should be connected to the recessed contacts and not to the ones that stick out.
Old 10-16-17, 12:59 PM
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You need to be very careful using connectors rated for 12v on a 120v circuit. What exactly are you trying to power ? That type of contact arrangement will only supply minimal current.
Old 10-16-17, 01:19 PM
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Also the live side of the circuit should be connected to the recessed contacts and not to the ones that stick out.
Or maybe placed as high up as possible.
Old 10-16-17, 02:13 PM
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Can you use a flexible whip or cord assembly instead of exposed contacts? What you're proposed is probably the least safe of way of doing this.
Old 10-17-17, 04:54 AM
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Door switch

Why are you switching 120 volts through those switches? are they rated for 120? What is your application?
Old 10-17-17, 06:44 AM
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Despite what the jamb contact manufacturer's intended purpose is (probably 12VDC automotive), these look to be fine to pass 120VAC @ 1/4A.

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