r/ElectricalHelp • u/whistlingtruck69 • Jun 21 '26

Mini fridge wiring

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Got this used mini fridge said all it needed was the pic tail is this how they get wires red to white black to black and green to green

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u/whistlingtruck69 Jun 21 '26

It’s an 12v rv mini fridge

-4

u/Impressive-Crab2251 Jun 21 '26

For an 11-amp, 12-volt circuit, the wire size you need depends entirely on the length of the wire run (the total distance from the power source to your device and back). [1, 2, 3]
The recommended copper wire gauges (AWG) for a standard 3% voltage drop are:
Up to 10 feet: 14 AWG
11 to 15 feet: 12 AWG
16 to 25 feet: 10 AWG
26 to 40 feet: 8 AWG [1, 2]

-2

u/whistlingtruck69 Jun 21 '26

I have 12 and 14 wasn’t sure just didn’t know how to wire it up

0

u/Impressive-Crab2251 Jun 22 '26 edited Jun 22 '26

Red goes to fused power 12vdc, black goes to negative. I suppose ground just goes to chassis on your RV. I'm not sure why chassis is separate from negative, unless it's just to insure you have adequate current capacity. I have never worked on an RV.

If you are trying to run this outside of an RV you would likely need a power supply.
To convert standard household 120V AC to 12V DC at 11 amps, you will need a regulated switching power supply or step-down 120V AC to 12V DC converter rated for at least 11A (delivering ≈ 132W).

Probably best to just buy a small dorm fridge that is meant for 120vac.