GFCI protection for pool pump motors
Outlets that feed pool pump motors need GFCI protection, or special-purpose GFCI above 150 V to ground. Replacing or repairing a pump motor triggers the same protection, and on variable-speed pumps the device may not sit between drive and motor.
What the code requires
Outlets that supply pool motors, including pump motors, need ground-fault protection under 680.5. For circuits of 150 V or less to ground and 60 A or less, single- or three-phase, that means a Class A GFCI. For circuits above 150 V to ground, up to 480 V phase-to-phase, it means a special-purpose GFCI (SPGFCI) that trips at no more than 20 mA.
When a pool pump motor is replaced or repaired, the replacement or repaired motor must get the same GFCI or SPGFCI protection.
TIA 23-17, issued April 10, 2025 and effective April 30, 2025, added 680.21(C)(2): on a variable-speed pump with an adjustable-speed drive, the ground-fault device must not be placed between the drive's output and the motor. TIA 23-20, issued August 20, 2025 and effective September 9, 2025, added 430.132 with a similar rule for motors. California may print the code without these later TIAs, so confirm with your building department.
On the job
- Swapping or repairing a pool pump motor triggers GFCI or SPGFCI protection on that outlet.
- On variable-speed pumps, the protection goes on the line side of the drive, which also avoids nuisance trips.
- Some articles quote newer wording that adds reconditioned motors. That word comes from the 2026 revision cycle, not the 2023 edition.
Exceptions that matter
- Listed low-voltage motors that don't need grounding, rated no more than the low-voltage contact limit and supplied as 680.23(A)(2) allows, are exempt.
What changed in 2023
The 2020 NEC required a Class A GFCI only for pool motor outlets of 150 V or less to ground and 60 A or less; the 2023 edition points to 680.5, adds SPGFCI for higher voltages, and applies the replacement rule to pool pump motors that are repaired, not only replaced.
Related sections
- NEC 680.5
- NEC 680.7
- NEC 680.14
- NEC 680.23(A)(2)
- NEC 680.59
- NEC 430.132
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