Oilpan4
Gold Member
Posts: 576
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: 120 EVSE to 240 with 10-30 Adapter for 40A Dryer Outlet

Sun Jun 16, 2019 11:28 am

You can run 120v adaptor off a 4 prong, 4 wire dryer receptacle.
Only issue is that 15 or 20 amp circuit will be protected in most cases by a 30 amp breaker or bigger.

Here is my 4 prong adaptor.
So I can charge my car and work on my new rental house, which is right next to a current rental house.
The new place is a gut job, no electricity, gas, water, sewage ect.
I plug my 4 prong plug into my 30 amp charging circuit on the side of my rental house, plug in my 16 amp 240 duosida evse into the 6-15 receptacle on the left then then plug in my L14-30 to 5-20 adaptor cord (not shown) to run lights, saws, 120v air compressor, drills, dewalt battery charger ect.
The 10-50 receptacle is used to run 240v air compressor, plasma cutter and my welders, which are not being used to fix up this house.
2019-06-16 12.31.01.jpg


So I run 240 and 120v loads at the same time on a 4 prong dryer circuit.
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2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

LeftieBiker
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Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: 120 EVSE to 240 with 10-30 Adapter for 40A Dryer Outlet

Sun Jun 16, 2019 12:35 pm

jjeff wrote:
LeftieBiker wrote:
In the case of the OP I really feel the best option is that 26a L2 EVSE with the correct plug, easy peasy


That should be 24A L-2 EVSE.

Actually, the one I linked was a very odd 26a.....which would be a bit too much for a normal 30a circuit but since the OP specifically said they had a 40a breaker it should work just fine.


It would depend on the gauge of the wiring, as noted earlier.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

Oilpan4
Gold Member
Posts: 576
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: 120 EVSE to 240 with 10-30 Adapter for 40A Dryer Outlet

Sun Jun 16, 2019 12:48 pm

New code, I mean new as of 1996 or so has been to run a dedicated 30 amp circuit on 10/3 with ground to a 4 prong 14-30 receptacle.
Even if you have a 3 prong dryer if it was installed after 1996 it should still have red, black and white insulated wires plus a bare ground pulled to the receptacle.

If it's 8/3 with ground wire on a 40 amp breaker it may have been a repurposed range circuit.
I worked on one about 2 weeks ago. At some point in an old house some one took the 50 amp range circuit and repurposed it to power a dryer and a gas range was put in.
Last edited by Oilpan4 on Sun Jun 16, 2019 8:47 pm, edited 1 time in total.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

smkettner
Posts: 7355
Joined: Mon Aug 09, 2010 10:13 pm
Delivery Date: 26 Feb 2014
Location: Orange County, CA

Re: 120 EVSE to 240 with 10-30 Adapter for 40A Dryer Outlet

Sun Jun 16, 2019 4:06 pm

NEMA 10-30 should not have 40 amp supply.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
RAV4 traded in for I-Pace Dec 2018

GerryAZ
Gold Member
Posts: 2159
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: 120 EVSE to 240 with 10-30 Adapter for 40A Dryer Outlet

Sun Jun 16, 2019 5:00 pm

smkettner wrote:NEMA 10-30 should not have 40 amp supply.

Agreed. If wire size is adequate for 40-ampere circuit, then receptacle should be replaced with 14-50 (if equipment ground wire is available) or 10-50 (if ground wire is not available). 40-ampere breaker should be replaced with 30-ampere breaker if 10-30 receptacle remains.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

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