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Broham1 · 12-12-2012, 11:26 PM

I'm getting 30A 240V added to my garage this month. Which NEMA wall receptacle should I get installed? I plan to feed my controller via the HD spa panel.

Malticulous · 12-13-2012, 01:05 AM

Probably an L14-30r. I'd just go with a 14-50r to a spa panel to have proper breakers for all 240v and 120v circuits (just backfeed the 50A GFI breaker.) The only disadvantage is you will need to run 8 or 6 AWG to the outlet and panel instead of 10. If you don't need 120 use L6-30.

Broham1 · 12-13-2012, 02:14 AM

Quote:

Originally Posted by Malticulous

Probably an L14-30r. I'd just go with a 14-50r to a spa panel to have proper breakers for all 240v and 120v circuits (just backfeed the 50A GFI breaker.) The only disadvantage is you will need to run 8 or 6 AWG to the outlet and panel instead of 10. If you don't need 120 use L6-30.

So, if I want my pump switch to be on the controller, I need to run 50A to the outlet? I was planning to have one 5500W element and pump run by a controller fed by a 30A breaker in the main panel through the 50A spa panel.

Malticulous · 12-13-2012, 03:04 AM

Well, a 30a should work, but a 50a will allow some leeway for any future changes. The connecters are cheaper too.

Broham1 · 12-13-2012, 03:18 AM

Quote:

Originally Posted by Malticulous

Well, a 30a should work, but a 50a will allow some leeway for any future changes. The connecters are cheaper too.

Thanks. That makes sense.

Malticulous · 12-13-2012, 03:27 AM

Yeah, you could add another pump just to the other hot leg. In my Midwest panel there is room for the main 50a GFI, another 240a and two 120a breakers m(if I use the smaller GE breakers.) Mine was sold cheap (15$) with a bad GFI though. I don't use mine in a way that needs it anyway.

http://www.ebay.com/itm/230828101194?ssPageName=STRK:MEWAX:IT&_trksid=p398 4.m1438.l2649