Just Purchased 2018 Leaf SV with 20K

[LeftieBiker]

I'm pretty sure the OP is going to have new wire pulled along with the 14-50 outlet ... everyone is correct, a 30a dryer circuit is NOT acceptable for either EVSEs the OP has. Lastly one could cheap out a bit and use a 40a breaker and 40a wiring which would work with either EVSE and be code but no IMO no sense saving $50 on a probably> thousand dollar job, future proof and do it right the first time

The dryer buddy is a lot cheaper, and more versatile if a dryer is also being used on that outlet.
Do you know any reasons to avoid it ?

The dryer Buddy lets a 30 amp dryer circuit be shared with another device rated for no more than 30 amps. It will not help if you have a device that needs a 40 amp circuit.

[SageBrush]

I'm pretty sure the OP is going to have new wire pulled along with the 14-50 outlet ... everyone is correct, a 30a dryer circuit is NOT acceptable for either EVSEs the OP has. Lastly one could cheap out a bit and use a 40a breaker and 40a wiring which would work with either EVSE and be code but no IMO no sense saving $50 on a probably> thousand dollar job, future proof and do it right the first time

The dryer buddy is a lot cheaper, and more versatile if a dryer is also being used on that outlet.
Do you know any reasons to avoid it ?

The dryer Buddy lets a 30 amp dryer circuit be shared with another device rated for no more than 30 amps. It will not help if you have a device that needs a 40 amp circuit.

Are you sure about that ?
The website has a device with 10-30 and 14-50 outlets.

Back to OP: Figure out what ChargePoint device you have, and go from there. We can help if you photograph the plugs and annotate.

[LeftieBiker]

Let me make it more clear: if the circuit was installed for a dryer, then it's almost certain to be 30 amp, in which case the Nissan EVSE can't be used, even with 100% of those 30 amps available.

[SageBrush]

Let me make it more clear: if the circuit was installed for a dryer, then it's almost certain to be 30 amp, in which case the Nissan EVSE can't be used, even with 100% of those 30 amps available.

Why ?

I get that the EVSE negotiates with the car and agrees on e.g 32 Amps. But I think the dryerBuddy device limits the load to 30 Amps and that is the most that will flow to the car.

Since the dryerBuddy is plugged into a 10-30 outlet and offers a 14-50r, I think it must work that way.

@GerryAZ ?

P.s., I sent the question to Brad, the engineer that makes the device.

[jjeff]

ChargePoint Home Flex Electric Vehicle (EV) Charger upto 50 Amp, 240V, Level 2 WiFi Enabled EVSE, UL Listed, Energy Star, NEMA 6-50 Plug or Hardwired, Indoor/Outdoor, 23-Foot Cable

(from Chargepoint site)

Are you sure? The Amazon listing I saw said the Chargepoint EVSE could come with either a 6-50 or 14-50 plug and for the OPs case, I'd hope it would be the 14-50 as thats what his OEM Nissan EVSE has, Personally if the Chargepoint he got came with a 6-50 I'd consider exchanging it or cut off the plug and install a 14-50 plug(note probably have the electrician do this and plug should be only ~$15.
The OP could also have the electrician install both a 6-50 and 14-50 outlet but by code they'd probably not wire it to the same breaker, I personally might knowing to never use both outlets at the same time but it wouldn't be code.

[SageBrush]

The OP could also have the electrician install both a 6-50 and 14-50 outlet but by code they'd probably not wire it to the same breaker, I personally might knowing to never use both outlets at the same time but it wouldn't be code.

Either outlet would be a ****bad*** idea because over 30 Amps would be pulled on that circuit.

[LeftieBiker]

Why ?

I get that the EVSE negotiates with the car and agrees on e.g 32 Amps. But I think the dryerBuddy device limits the load to 30 Amps and that is the most that will flow to the car.

Since the dryerBuddy is plugged into a 10-30 outlet and offers a 14-50r, I think it must work that way.

And I think that the DB just switches one load off to enable power to the other one. In that case the Nissan EVSE would pull 27.5 amps, the 30A breaker would not trip, and the circuit would be running at more than the rated continuous capacity of 24 amps. Likely nothing would happen - at least for a while - but it would be a code violation and less than safe.

[jjeff]

The OP could also have the electrician install both a 6-50 and 14-50 outlet but by code they'd probably not wire it to the same breaker, I personally might knowing to never use both outlets at the same time but it wouldn't be code.

Either outlet would be a ****bad*** idea because over 30 Amps would be pulled on that circuit.

No I was suggesting that on a 50a breaker/wiring not the OPs 30a circuit and I'm not really suggesting it, just saying what I'd probably do, that or again cut off the 6-50 plug and put a 14-50 on instead.
I like this one due to it's handle:
https://www.amazon.com/Camco-PowerGrip- ... 202&sr=8-6
Or if the OP had the electrician install a 14-50 outlet and the Chargepoint ended up having a 6-50 plug they could simply purchase something like this:
https://www.amazon.com/RVMATE-Welder-Ad ... 02&sr=8-17

[SageBrush]

Why ?

I get that the EVSE negotiates with the car and agrees on e.g 32 Amps. But I think the dryerBuddy device limits the load to 30 Amps and that is the most that will flow to the car.

Since the dryerBuddy is plugged into a 10-30 outlet and offers a 14-50r, I think it must work that way.

And I think that the DB just switches one load off to enable power to the other one. In that case the Nissan EVSE would pull 27.5 amps, the 30A breaker would not trip, and the circuit would be running at more than the rated continuous capacity of 24 amps. Likely nothing would happen - at least for a while - but it would be a code violation and less than safe.

You are right.
My question to Brad of dryerBuddy is below, followed by his answer:

Hi Brad and Company,

Do you offer a device that can handle the following config:

30 Amp circuit, 10-30 receptacle
40 Amp EVSE, 14-50p, *cannot* change max amperage
LEAF EV -- cannot set max amperage

I *think* I am asking if the dryerBuddy can set the load rather than the EVSE.

Thanks,

Thanks for your interest in my custom power products, I too drive a Nissan Leaf. You have a good attention to detail, our LEAF's do not allow us to adjust the charging rate like some electric vehicles do, with a non-adjustable EVSE that you have it will be offering more charging current to the electric vehicle than is safly available from a 30 amp dryer circuit. This is not a problem if you have the 3.3 kilowatt onboard charger but if you have the 6.6 kW onboard charger like I do, then your Leaf will draw 28 1/2 amps which is a bit above the 24 amp maximum continuous rating on a 30 amp circuit. If you have the 6.6 kW onboard charger then you will need to purchase a different EVSE. You want either a 24 amp unit or one that is adjustable down to 24 amps. I offer several different units, this one is on a particularly good sale and has the most features for the money of any unit I have ever sold, it comes with a three-year warranty and can easily be adjusted to 24amps via the on-screen menu;
https://www.bsaelectronics.com/collecti ... ng-station

Cheers
Brad Apelgren
Owner - BSA Electronics
Business days: Mon – Fri, closed weekends and holidays

[GerryAZ]

I recommend a 14-50 receptacle with 50A breaker and appropriate wiring because the 4-wire 14-50 receptacle is more common for both RV's and EVSE's. If the ChargePoint EVSE has a 6-50 plug (typically used on welders), then either replace the plug as Jeff suggested or make an adapter consisting of a short cord with a 14-50 plug on one end and 6-50 receptacle on the other end. Replacing the plug on the EVSE is the best solution. I have a circuit with 14-50 receptacle for charging my car so I made up an adapter which plugs into that receptacle and has a 6-50 receptacle for my welder.