30 amp inline GFCI wiring

illin8 · Mar 11, 2010

I have this 30 amp inline GFCI extension cord (haven't done anything with it yet) but noticed last night it has a black, a brown and a blue wire, as well as the ground. Offhand, anyone know which wires are which?

I assume the blue wire is neutral with the black and brown being hot...

lschiavo · Mar 11, 2010

I dont know that color coding. Just use a continuity tester.

enid · Mar 11, 2010

The insulation of a neutral wire is coloured blue in EU & UK. But I would still use a meter to check.

illin8 · Mar 11, 2010

Doh...nevermind.

drez77 · Mar 11, 2010

illin8 said:
I'll throw this out there, anyone hazard to guess the 'safest' way to test it out?

What was mentioned in post 2. Use a continuity meter.

enid · Mar 11, 2010

Normally on a 4 prong dryer plug your 2 straight plugs are hot, L shaped plug neutral, and round plug ground. Now you just have to check for continuity between the prongs and the colored wires to determine which prong is what colored wire.

illin8 · Mar 11, 2010

Confirmed: Black & Brown are hot(s)....Blue is neutral.

30 amp inline GFCI wiring

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30 amp inline GFCI wiring

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