What Size Wire for Pool Pump? — Complete Wiring Guide
A Pool Pump requires 12 AWG copper with a 20A GFCI on a 240V dedicated with GFCI circuit. Here is the complete NEC-compliant wiring guide.
Pool Pump Wiring Details
Pool pumps require GFCI protection per NEC 680.21(C) for all 120V and 240V circuits. A standard 1.5 HP pool pump draws about 10 amps at 240V, requiring 12 AWG wire and a 20A GFCI breaker. Variable-speed pumps (now required in many states for new installations) draw significantly less — a 1.5 HP VS pump at low speed may draw only 2-3 amps, saving 60-80% on energy costs compared to single-speed pumps.
NEC Code Reference
The wiring requirements for a Pool Pump are governed by NEC Article 680.21. Always check the appliance nameplate for specific electrical requirements — the manufacturer's specifications take precedence over general guidelines. Your local AHJ (Authority Having Jurisdiction) may have additional requirements beyond the NEC.
Pro Tip
NEC 680.22(A)(1) requires all receptacles within 20 feet of a pool to be GFCI protected. The pool pump circuit itself must also be GFCI protected at the breaker. A bonding conductor (8 AWG solid copper) must connect the pool structure, pump motor, and all metal within 5 feet of the pool per NEC 680.26.
Disclaimer: This guide is for reference only. All electrical work must be performed by or verified by a licensed electrician. Local codes may differ from NEC.