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I purchased a Siemens electric panel for a spa with a 60 amp breaker. Is there any danger in hooking up my 40 Amp pool water heater to it?

2nd Question...The Panel comes with 4 slots, can i use the 60 amp GFCI Breaker in the house and use regular non GFCI 40 amp + 15 amp Breakers in the box (15 amp Breaker is for the pool pump)

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  • Welcome to SE. Please ask one question per post.
    – isherwood
    Commented May 16, 2018 at 14:32
  • For the first question, is all the wiring after the 60a breaker sized for 60a, or is there any wire sized for 40a?
    – Jeffrey
    Commented May 16, 2018 at 14:35
  • Is the wire from the panel to the hot tub #6 copper or fatter (lower numerically)? If aluminum #4 or fatter.
    – Harper - Reinstate Monica
    Commented May 16, 2018 at 14:49
  • Yes the wiring is conform to the needs of 60 amps the box is located about 100 feet from the main panel, the wire is well over an inch thick
    – Carl Lalonde
    Commented May 16, 2018 at 14:49
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    Yes i have a Siemens Main Panel in the house, everything is made by Siemens
    – Carl Lalonde
    Commented May 16, 2018 at 15:05

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Double check everything, since Siemens makes several lines of breaker/panel (which are physically incompatible so they plainly won't fit), but it all makes sense to me.

  • You made a canny choice of hot tub subpanel so you could swap breakers - smart economics.
  • The farther upstream the GFCI protection is, the better - and you can't get more upstream than the main panel, can you? :)
  • The breaker in the panel is able to protect the #6 cable and 60A subpanel.
  • The breaker has the correct thresholds for a hot tub (8ma and not 30ma) since it's sold as a hot tub panel.
  • With the subpanel fully GFCI protected, you can put plain breakers in there. Though a typical dumb home inspector isn't going to like it.

Be sure to put "GFCI Protected" labels on the receptacles and subpanel, I recommend making your own with a common labelmaker, as they last longer than the blue paper ones that come with GFCIs.

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  • I agree mostly, having 120 circuits inside on a 240 protected GFCI may cause neucence tripping in my experiance, but the heater will be protected.
    – Ed Beal
    Commented May 16, 2018 at 17:47

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