GFCI protected branch line

[blazenut]

If you install a GFCI outlet to protect an entire branch line, does it have to be the first outlet on the line? Thanks.

[Erby]

GFCI receptacles can only protect what is downstream of the GFCI. The lines remain hot between the panel and the GFCI.

So, technically speaking, Yes it must be the first one if you want to protect each outlet on the circuit.

If you want to protect all of the circuit, including wiring, it should be a GFCI breaker in the panel.

[Jim Katen]

If you install a GFCI outlet to protect an entire branch line, does it have to be the first outlet on the line? Thanks.

It can't protect anything that's upstream of it.

If you want to protect the "entire branch line" then you'll have to install a GFCI breaker.

If you just want to protect every outlet in the circuit, you can install a GFCI receptacle at the first outlet.

- Jim Katen, Oregon

[JeremyDP]

Say the GFCI is in a bathroom on the first of two outlets, but the light is downstream. Is that bad? Or just not preferred? Or both?

Thanks!

[Jim Katen]

Say the GFCI is in a bathroom on the first of two outlets, but the light is downstream. Is that bad? Or just not preferred? Or both?

Thanks!

I'm not aware of any rule against it.

Some people think it's a bad idea because, when the GFCI trips, the light will go out and you could fall and be injured in the dark. I think that, if you can't find your way out of a dark bathroom, your problems aren't related to a GFCI.

- Jim Katen, Oregon