EV Receptacles

Level 1 (120V) Receptacles

120V receptacles for the purpose of EV charging must be on at least a 20A circuit with a 5-20R (T-slot) receptacle. If this 5-20R receptacle is outdoor within 2.5m of finished grade, it must be protected by GFCI.

Level 2 (240V) Receptacles

240V receptacles for the purpose of EV charging generally do not require to be GFCI protected, even when outdoors.

Note: For all EV receptacles, the circuit must match the receptacle rating. For example, a typical level 2 charging receptacle of NEMA 14-50R is rated at 50A, so the circuit (breaker and wire) must be 50A as well. We are no longer allowed to have 14-50R EV receptacles on 40A breakers.

CEC: 86-306 Receptacles for electric vehicle supply equipment
1) Each receptacle for the purpose of electric vehicle charging shall be labelled in a conspicuous, legible, and permanent manner, identifying it as an electric vehicle supply equipment receptacle and shall be
a) a single receptacle of CSA configuration 5-20R supplied from a 125 V branch circuit rated not less than 20 A; or
b) of the appropriate CSA configuration in accordance with Diagram 1 or 2 when supplied from a branch circuit rated at more than 125 V or more than 20 A.
2) When the receptacle referred to in Subrule 1) a) is installed outdoors and within 2.5 m of finished grade, it shall be protected with a ground fault circuit interrupter of the Class A type.

CEC: 26-700 General
2) Except as provided for by other Rules of this Code, receptacles having configurations in accordance with Diagrams 1 and 2 shall be connected only to circuits having a nominal system voltage and ampere rating corresponding to the rating of the configurations.