Template · EV chargers

EV receptacle, NEMA 14-50 single line diagram

50A GFCI circuit to a 14-50 receptacle for a plug-in charger.

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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EV receptacle, NEMA 14-50 single line diagram: 50A GFCI circuit to a 14-50 receptacle for a plug-in charger. — EV receptacle, NEMA 14-50. 10 devices on an 11 × 17 in sheet with a title block and notes column.

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
Ground	Grounding electrode system
Circuit breaker	Branch breakers
To (continues off sheet)	To house loads
Circuit breaker	50A 2P	GFCI · EV receptacle
Receptacle	EV receptacle	50A · NEMA 14-50	3 #6 Cu THHN + #10 G, 3/4" EMT
EV charger	Plug-in EVSE	40A · 9.6 kW	Cord and plug

Notes on the sheet

Plug-in EVSE draws 40A continuous: 40A × 125% = 50A branch circuit.
GFCI protection for personnel on the EV receptacle (NEC 625.54), provided here by the breaker.
Receptacle mounted where the EVSE cord reaches the vehicle without an extension cord.
Service load calculation to confirm capacity for the added load.

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.