Modular EV Power J1772 to NEMA Adapters

ADAPTERS Return to Home Page

Our interest at modular EV power relates to supplying electrical power to the vehicle, using J1772 parts.
Aluminum SAE J1772:2010(tm) A1 Vehicle Inlet Coupler to NEMA 14-50 Adapter	UL Listed SAE J1772:2010(tm) A2 Vehicle Inlet Coupler to NEMA 14-50 Adapter
Original Hand Crafted Aluminum J1772 adapters. Now that production electric vehicles are ready for sale and public charging stations are being installed with the new J1772 connectors, what can someone with a vehicle that presently has a NEMA 14-50 connector do? This adapter fills the gap between the NEMA and the new J1772 technology. Rated at 40 Amps. J1772 to NEMA 14-50 Adapter Boxes: Specifications & photos J1772 to NEMA 14-50 Adapter Boxes: Instruction J1772 to NEMA 14-50 Adapter Boxes: Sales and Prices J1772 to NEMA 14-50 Adapter Boxes: Securing the Adapter J1772 and Ground Faults The beginning of the J1772 Vehicle Inlet Coupler Our first Prototype J1772 Vehicle Inlet Coupler Testing our first prototype coupler Our second Prototype J1772 Vehicle Inlet Coupler	First all UL listed parts J1772 adapter are ready. These are sold out and we are not sure if we will make more. Consider a A3 compact unit. We received the UL Listed J1772 inlet connectors from ITT a few days ago. The first batch is done and tested. Rated at the full 50 Amps of the NEMA 14-50. All the parts are UL listed. Now that production electric vehicles are ready for sale and public charging stations are being installed with the new J1772 connectors, what can someone with a vehicle that presently has a NEMA 14-50 connector do? This adapter fills the gap between the NEMA and the new J1772 technology with an adapter built with all UL listed parts. UL J1772 to NEMA 14-50 Adapter Boxes: Specifications & photos UL J1772 to NEMA 14-50 Adapter Boxes: Instruction J1772 to NEMA 14-50 Adapter Boxes: Sales and Prices
Compact UL Listed SAE J1772:2010(tm) A3 Vehicle Inlet Coupler to NEMA 14-50 Adapter	Specials of any SAE J1772:2010(tm) Vehicle Inlet Coupler to NEMA 14-50 Adapter
All UL listed parts compact J1772 adapter. We are using the UL Listed J1772 inlet connectors from ITT in a new enclosures. Rated at the full 50 Amps of the NEMA 14-50. All the parts are UL listed. UL J1772 to NEMA 14-50 Adapter Boxes: Specifications & photos UL J1772 to NEMA 14-50 Adapter Boxes: Instruction J1772 to NEMA 14-50 Adapter Boxes: Sales and Prices	Specials, different NEMA connectors, compact or full size. Write us and we will see what we can do to help.

	NEMA 6-20 20 Amp, 16 usable Amps	NEMA 10-50 240 V, 50 Amp No Neutral

An empty box with an ITT 75 Amp Inlet connector. These are used for use with an Avcon Claw to older EV's, to make special adapters, or to make an extension cable.

Some EVSE units want a switch on the adapter so the charge cycle starts in the CONNECTED stated before going to the CHARGING state. The switch lets the J1772 system connect but not provide power when in the OFF position. Then when you are ready changing it to CHARGE changes the pilot signal and the J1772 control provides the 240 volt power to actually charge the car. This is what our AVC2 Active Vehicle Control board does automatically. The switch makes the J1772 connection include all the steps. ALL of our adapters now have this switch now.

Scooters and NEV’s

For Scooters (Vectrix) and NEV’s that can charge on 120 or 240 volts, J1772 can be used. If the charger is only suitable for 120 volt operation J1772 is a problem since it only provides 208 or 240 volts.

We have J1772 to NEMA 6-15 receptacles (240 Volts, 15 amp). NEMA 6-15 receptacles are the correct one to use for this application.

If we made an adapter with a NEMA 5-20, standard household receptacle, intended for 120 volt loads, it is trouble waiting to happen. Sooner or later a 120 volt item would get plugged in and the results would not be good.

What we would recommend would be to replace the present NEMA 5-20, standard household plug on the vehicles cable with a NEMA 6-15 plug (240 Volts, 15 amp) that you can get at a hardware store so it is expecting to plug into 240 volts. That can plug in to one of our adapters or a 240 volt receptacle.

Then make an adapter with your old plug (120 volt household 5-15) and a cable mounted NEMA 6-20 receptacle (female) for charging on 120 household power. The 6-20 accepts both 6-15 and 6-20 for more versatility. Use a foot or two of SO 12/3 cable in your adapter cable. If you presently have a molded plug cut it off leaving 6-12 inches of cable to make the adapter. The green wire goes to the green ground screws. The Black wire goes to the gold screws and White wire goes to the silver screws on each end.

NEMA 6-20
20 Amp, 16 usable Amps

More basic information about NEC Article 625

A YouTube video of a Tesla charging at a Nissan Dealership using an A3

e-mail: david@modularevpower.com

SAE J1772:2010(tm) is a trademarked standard of the Society of Automotive Engineers.

Links to other EV related sites

The information contained in this site is provided solely to document my project and share that process with others. This site is not instructions or recommendations about what to do or what not to do. Every project is different and it is the builders responsibility to fully understand and take full responsibility for their project. Every detail in your project design should be verified and fully under stood by the builder before going past the planning stage. Vehicles are dangerous, even lethal as is high voltage, good design, good fabrication, and a constant thought about possible failures and safety must be part of the project. If you choose to convert a vehicle you must accept that you are responsible for that vehicles safety. If you do not accept these basic guidelines, please do not read this site or use any information from it.
Should there be something on this site you see that you think is not safe, is incorrect or misleading please write me.