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625.44 Electric Vehicle Power Connection Methods

Revision

Change Summary

  • The connection methods for connecting portable EV charging equipment to the premises wiring system has been expanded to include certain 250- volt rated receptacle outlets.
NEC® Text

Article 625.44 Equipment Connection.
Equipment EVSE and WPTE shall be connected to the premises wiring system in accordance with one of the following: methods in 625.44(A) through (C).
(A) Portable Equipment. Portable equipment shall be connected to the premises wiring systems system by one or more of the following methods:
(1) A nonlocking, 2-pole, 3-wire grounding-type receptacle outlet rated at 125 volts, single phase, 15 or 20 amperes
(2) A nonlocking, 2-pole, 3-wire grounding-type receptacle outlet rated at 250 volts, single phase, 15 or 20 amperes
(3) A nonlocking, 2-pole, 3-wire or 3-pole, 4-wire grounding-type receptacle outlet rated at 250 volts, single phase, 30 or 50 amperes
(4) A nonlocking, 2-pole, 3-wire grounding-type receptacle outlet rated at 60 volts dc maximum, 15 or 20 amperes The length of the power supply cord, if provided, between the receptacle outlet and the equipment shall be in accordance with 625.17(A)(3).
(B) Stationary Fastened-in-Place Equipment.
Stationary equipment intended to be Equipment that is fastened in place in such a way as to permit ready removal for interchange, facilitation of maintenance or repair, or repositioning shall be connected to the premises wiring system by one of the following methods:
(1) A nonlocking, 2-pole, 3-wire grounding-type receptacle outlet rated 125 volt volts or 250 volt volts, single phase, up to 50 amperes
(2) A nonlocking, 3-pole, 4-wire grounding-type receptacle outlet rated 250 volt volts, three phase, up to 50 amperes
(3) Any of the receptacle outlets in 625.44(A)(1) or (2) A nonlocking, 3-pole, 4-wire grounding- type receptacle outlet rated 250 volts, single phase, 30 or 50 amperes
(4) A nonlocking, 2-pole, 3-wire grounding-type receptacle outlet rated 60 volts dc maximum, 15 or 20 amperes
The length of the power supply cord, if provided, between the receptacle outlet and the equipment shall be in accordance with 625.17(A)(3).
(C) Fixed Equipment. All other equipment EVSE and WPTE shall be permanently wired and fixed in place to the supporting surface.

Material taken from the National Electric Code® is reprinted with permission from NFPA 70®, 2020 edition.
National Electrical Code®, Copyright 2019, National Fire Protection Association, Quincy, MA. All rights reserved.

Expert Analysis

For the 2020 NEC, further revision occurred at 625.44 to allow portable equipment to be connected to the premises wiring system using a nonlocking, 2-pole, 3-wire, 250- volt, single phase, 15 or 20 amperes grounding-type receptacle outlet or a nonlocking, 2-pole, 3-wire or 3-pole, 4-wire grounding-type receptacle outlet rated at 250 volts, single phase, 30 or 50 amperes. Prior to the revision, portable EV charging equipment connected to the premises wiring system was limited to nonlocking, 2-pole, 3-wire grounding-type receptacle outlets rated at 125 volt, single phase, 15 or 20 amperes or nonlocking, 2-pole, 3-wire grounding-type receptacle outlets rated 60 volt dc maximum, 15 or 20 amperes. The title of 625.44(B) was changed from “Stationary Equipment” to “Fastened-in-Place Equipment.”

Leviton Solution Leviton offers receptacle solutions for both portable and fixed EVSE equipment. Built of durable thermoplastic, Leviton Power Receptacles come equipped with heavy-gauge, double-wire coper alloy contacts. Available in many NEMA configurations to meet your customers EVSE requirements.

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Cat. No. EVBL2-P12 Cat. No. 5372 Cat. No. 83026 Cat. No. EVHOL
Evr-Green®
Mini Level 2
Electric Vehicle
Charging Station		 30 Amp
250 Volt
Receptacle		 2-Gang
Flush Mount
Receptacle
Wallplate		 Holster for
Level 2 Electric
Vehicle Charging
Stations

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