NEC 625 requires level 2 EVSE to be hard wired. 625 is written to set standards for designing a EVSE and for commercial units. The EVSE for home use is something the consumer buys and gets a professional to install.
Commercial EVSE units, assembled tested ready to go, must be UL listed and installed per there instructions to comply with the NEC. This applies if the manufacturer makes one or thousands. The hardwired part is to insure grounding of the vehicle and get connectors out of that problem. Some new EVSE have circuits to confirm the ground circuit is good and have gotten UL listings that allow a plug in operation. When the UL listed EVSE plugs in to a receptacle it is outside of the local electrical inspection in most places. In most of the country people are allowed to do electrical work on their own home. They may need a permit. If you live in one of these areas YOU should be able to build your own EVSE using properly rated UL listed parts and following all of the requirements of the NEC. Many larger cities don't allow this and require a licensed contractor be involved. The quality of your workmanship will also count in the end. You may need to explain the design to the inspector. You may need to explain how you complied with every EVSE requirement in section 625. We recommend builders who need an inspection start by talking to an inspector at the building department. My recommendation is if you have any concerns or if you are planning on leaving the unit as part of your home when you sell go UL. If you just want to have something under your control or something special, build, but you are taking more risk by taking this path. David Kerzel Modular EV Power LLC http://modularevpower.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of EVDL Administrator Sent: Sunday, August 11, 2013 12:09 AM To: Electric Vehicle Discussion List Subject: Re: [EVDL] EVLN: Comparing JuiceBox, OpenEVSE and EVSEUpgrade On 10 Aug 2013 at 11:36, Bruce EVangel Parmenter wrote: > any EVSE (even non Ul approved) that is not hardwired (uses a plug > into an outlet instead) bypasses city law requiring the EVSE > permitting process? Some cities may have their own codes. However the NEC doesn't normally regulate cord-and-plug connected appliances. AFAIK, there has only ever been one exception to this: electric vehicle charging equipment. It is regulated by NEC article 625. I'm far from an expert on this subject, but I see it as quite possible that a strict interpretation of the code could put a cord-and-plug connected EVSE under NEC regulation. David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
