size of feeder for sub-panel

[bk019]

Feeding a wet bar outside, with a few recps for general use, then using it to feed a pool with 2 pool pumps fiquring them to be 18-20 amps each couldnt get a stright answer from the pool guy, 1 wet niche light and outlets for salt generator and convience outlets.

 

[roger]

Calculate the total connected load using the heaviest loads you are aware of and add a little for a buffer, I would probably go about 25 to 50 percent over.

Roger

 

[stickboy1375]

I generally just install 100 amp sub panels for pools, overkill, most definitely, but its just as easy to pull it once and have capability in the future.

 

[suemarkp]

The pool pumps should not be much over 10 to 12 amps at 240V (circulation pump should be 1 HP or less, a spa bubble pump may be 2 HP). Two 120V pumps works out the same as two pumps wired for 240V. The light could be up to 500W. The salt chlorinator is almost nothing. So a calculated load of 30A would probably cover the fixed equipment. I'd add 15A to cover convenience outlets. Or plan for a heat pump which could have an MCA up to 35.

So a 60A feeder should be plenty for no heat pump, 70A to 100A if a heat pump gets added. Gas heaters need minimal power.