gfi installation 3 wire line


Old 11-09-11, 06:44 AM
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gfi installation 3 wire line

I would like to know how to install a gfi into the breaker box with a 3 wire line . I have a 12-3 line going into the box a red, black, white, plus ground and want to install a gfi to cover both circuits. Thanks for the help
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Old 11-09-11, 06:53 AM
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What are you trying to protect? To do this with a breaker you will need a 2 pole 20 amp GFI breaker. This will be more expensive than 2 GFI receptacles, although the breaker would be needed for a 240 volt circuit.

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