Template · Service and panels

Pool equipment subpanel single line diagram

A 60A feeder to a panel at the equipment pad for the pump, heat pump, lights and a receptacle. Use this for a swimming pool with its own panel at the equipment pad, feeding the pump, a heat pump, the pool lights and a receptacle.

A free template with typical ratings, conductor callouts and general notes. Open it, change what differs on your job, fill in the title block and export a PDF.

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Pool equipment subpanel single line diagram: A 60A feeder to a panel at the equipment pad for the pump, heat pump, lights and a receptacle. — Pool equipment subpanel. 18 devices on an 11 × 17 in sheet with a title block and notes column.

What the reviewer checks on this drawing

The inspector checks ground-fault protection on the pump, the heat pump, the lights and the receptacle, the equipotential bonding grid, the feeder with an insulated equipment grounding conductor, and where the receptacle is relative to the water.

What the drawing shows

Every device on the sheet, in the order power reaches it.

Symbol	Label	Rating or detail	Conductors feeding it
Utility source	Utility service	120/240V 1φ 3W
Meter	Utility meter	200A socket	Service conductors, per utility
Circuit breaker	200A 2P	Main breaker
Panel	Main panel	200A bus · 120/240V
Circuit breaker	Branch breakers
To (continues off sheet)	To house loads
Circuit breaker	60A 2P	Pool feeder
Panel	Pool equipment panel	100A MLO · NEMA 3R	3 #6 Cu + #10 G, 1" PVC underground
Circuit breaker	20A 2P	GFCI · pump
Motor	Pool pump	1.5 HP · 230V · 10A, variable speed	2 #12 Cu + #12 G
Circuit breaker	50A 2P	GFCI · heat pump
Disconnect switch	Disconnect	60A · NEMA 3R, within sight of unit	2 #8 Cu + #10 G
Device	Pool heat pump (HP)	MCA 36A · MOCP 50A
Circuit breaker	20A 1P	GFCI · lights
Device	Pool light transformer (XFMR)	300 VA · 120V to 12V, listed for pools	2 #12 Cu + #12 G
Lighting	Pool lights	12V LED
Circuit breaker	20A 1P	GFCI
Receptacle	Receptacle	6 to 20 ft from pool	2 #12 Cu + #12 G

Notes on the sheet

Feeder load: heat pump 36A (its minimum circuit ampacity) + pump 10A + lights 2.5A + receptacle 1.5A = 50A, on the 60A feeder.
Pump motor: 10A × 125% = 12.5A, on a 20A circuit with ground-fault protection (NEC 680.21(C)).
Heat pump breaker does not exceed the nameplate MOCP (50A); conductors sized from the MCA (36A). Replace both with the nameplate data of the installed unit. Ground-fault protection on it as an outdoor outlet at a dwelling (NEC 210.8(F), 2020 and later). The 2023 edition exempted listed HVAC equipment until September 2026, and some local amendments still do.
Equipotential bonding under the NEC (680.26): #8 solid copper joining the pool shell steel, the perimeter surface, metal fittings, the pump motor and the heater, and the pool water where nothing bonded is in contact with it. It is a bonding grid and need not be run to the panel.
In Canada (CEC Rule 68-058): No. 6 copper, and the pool bonding is connected to the bonding of the panelboard that supplies the pool equipment, which the bonding conductor run with the circuit can do.
One receptacle between 6 ft and 20 ft from the pool wall, GFCI protected (NEC 680.22(A)).
Pool panel is a subpanel: neutrals isolated, and an insulated copper equipment grounding conductor run with the feeder.

Diagram is schematic and not to scale. Field-verify existing equipment ratings. Ratings and conductor sizes shown are typical. Confirm against the adopted code, the equipment listing and a load calculation before installation. Code references are to the 2023 NEC and the 2024 Canadian Electrical Code: see references and editions.