Pool Construction
Pool Electrical Load Calculator
Plug in every pool device, get total amps and the right sub-panel size. NEC 680 compliance starts here — but verify with your licensed electrician.
FAQ
Typical pool sub-panel? +
50–100A. A typical residential pool with gas heater needs 50–60A; with electric heat pump, 70–100A.
Why 25% margin? +
NEC 220.14 requires continuous loads (anything running 3+ hours) to be sized at 125% of nameplate. Pool pumps and heaters qualify.
GFCI? +
All 120V pool equipment needs GFCI per NEC 680.22(B)(4). Many AHJs now require GFCI on 240V pool equipment too. Always GFCI the lights.
Bonding grid? +
Code-required equipotential bonding ring: #8 solid copper around the pool perimeter, tied into all metal within 5 ft. This is non-negotiable safety — not optional.
Should I do this myself? +
Pool electrical kills people every year. Always pull a permit and hire a licensed electrician with pool experience for the final hookup.