NEC 625: Electric Vehicle Power Transfer System
What This Article Covers
NEC Article 625 covers electric vehicle (EV) supply equipment (EVSE) — the chargers used to charge EVs. As EV adoption grows, Article 625 is the second-most-searched specialty article (after solar).
Key Requirements
- EVSE circuit sized for continuous load — 125% of EVSE rating
- GFCI protection required for cord-and-plug EVSE
- Disconnect required for EVSE > 60A or > 150V to ground
- Load management permitted to avoid service upgrade
- Receptacle outlets dedicated to EVSE — no other loads
Common Field Applications
- 40A Level 2 charger on a 50A branch circuit
- Installing a NEMA 14-50 outlet for portable EVSE
- Multi-charger commercial site with load management
Common Mistakes & Inspection Failures
- Sizing at 100% instead of 125%
- Sharing the EVSE circuit with another receptacle
- Missing the disconnect on a 80A unit
Related NEC Articles
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Frequently Asked Questions
What does NEC 625 cover?
NEC Article 625 covers electric vehicle (EV) supply equipment (EVSE) — the chargers used to charge EVs. As EV adoption grows, Article 625 is the second-most-searched specialty article (after solar).
What are the key requirements of NEC 625?
Key requirements include: EVSE circuit sized for continuous load — 125% of EVSE rating; GFCI protection required for cord-and-plug EVSE; Disconnect required for EVSE > 60A or > 150V to ground. See the full requirements list on this page.
What are common mistakes with NEC 625?
Sizing at 100% instead of 125% Sharing the EVSE circuit with another receptacle Missing the disconnect on a 80A unit
Related Resources
Michael Briglio
IBEW Local 134 Journeyman · Licensed Contractor · IL Educator
Michael started in the IBEW at 18 and made foreman as a 3rd-year apprentice. Thirteen years in, he’s a Local 134 journeyman, a licensed electrical contractor, a licensed Illinois teacher, and OSHA 30 and EPA 608 certified. He teaches a federally recognized pre-apprenticeship on the south side of Chicago — where he’s helped 100+ students get into the IBEW. He built Sparky AI around exactly what the NJATC exam tests and what trips people up. Prep with this and you walk in ready.
Facts on this page trace to primary sources or first-hand IBEW Local 134 experience — see sources & methodology.