Odd hot tub

[D.Rater]

I hooked up a hot tub that required 2 discos. 1) 20 a 12/3 and 1) 30a 10/2, gfi of course, and that leads to my question. Will the 30a gfi function w/ 2 wire? I hooked it up per diagram, but some doubt remains.

 

[LarryFine]

Re: Odd hot tub

Yes, it will. The GFCI's neutral pigtail should hit the feeder's neutral in the panel, even if there is no load neutral. I've wired plenty of these multiple-circuit tubs. The 30a circuit is for the heater, and the 20a circuit is for the motors and electronics.

 

[D.Rater]

Re: Odd hot tub

LF- thanks, that's what I thought, but it had been a while since I'd seen a 2 wire gfi feed.