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Discussion starter · #41 ·
That shouldn't greatly effect the battery's longevity right? As long as it's around that number it's good?
Don't sweat the small stuff. Of course you could also play whack-a-mole with the charge setting. Try 78%, maybe it'll do 80 :)
 
I agree, Pine. If installing a new circuit, go 6 gauge wire if you can for future proofing even if you are going to use it for a 30A circuit today. Later, if you need to upgrade the service you won't need to pull new wire.
Well, as I mentioned, I'm reading posts at some sites which say 6 guage may now not be in code for 48 amp charging (but still good for 40 amp charging). Have you seen anything about this?

I originally installed a 40 amp charger with a NEMA 14-50 socket. I later substituted an Emporium 48 amp charger (works great) and removed the NEMA socket and hardwired the charger as recommended by Emporium since technically, a 14-50 socket is only rated for 40 amps (50 amp breaker). I spoke with the county electrical inspector and he seemed to think 6 gauge wire may not be in code anymore for a 48 amp charger, but he didn't seem too sure about it.
 
Discussion starter · #43 ·
I'm reading posts at some sites which say 6 guage may now not be in code for 48 amp charging (but still good for 40 amp charging). Have you seen anything about this?
Whose code, Pine? NEC? Local? Canadian? Something else? Lets assume NEC code (I am not an electrician but have seen one on TV)

First, the load will affect the gauge of the wire needed.
NEC says max amperage should be 80% of the wire's capacity. So if the wire can support say 100A, the max load (the EVSE charge station and car at the end of the line) would be 80A.

Second, the grade/type of wire used plays a role. Some grades of wire support more amps than others.

Third, the the length of the wire will affect the gauge choice. A 2,000 foot run may have different requirements than a 2 foot run. With distance, the voltage drops. So you may need thicker wire for longer runs than the minimum.

In summary, wire gauge, type of wire, distance all play a role.

Now to your concern, according to this wire size chart, #6 copper can support a max amperage of 55A, 65A or 75A depending on the wire used for example. Let's say the wire supports a max 55A, the NEC 80% rule would allow a 44A load. A 40A breaker on 32A EVSE would be fine. A load pulling 48A would not. However, for the #6 wire grade that supports 65A, 80% would be a 52A load. That would support a 48A EVSE assuming the run distance did not result in a significant voltage drop.

Here's an article with other details on wire sizing, amps.
 
Hey all, do we know if the Dual Level Charge Cord comes with a built in GFCI protection? Asking for an electrician
 
Discussion starter · #48 ·
Also:
"If you have any charging station hardware or EV vehicle questions reach out to a Chevrolet Specialist at 1-833-EVCHEVY (1-833-382-4389)."

Update: calling that number delivers you to someone who will answer general questions, temper your expectations. Anything detailed and they'll refer you to their electrical installation partner Qmerit.
 
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Yep, sorry, I'm completely lost. When I went to call Chevy, they didn't know if the mobile connector had it or not, and they told me they didn't believe if there was GFCI in the hard-wired, GM Power Up+ version. The basic thing I'm trying to figure out is if the circuit breaker needs GFCI protection. I believe it is technically code in my state, but we're also worried that if there are two GFCI's on the line (the circuit breaker and the mobile charger) that it will constantly trip.
 
If you are installing a 14-50 outlet code now would require a GFCI breaker but if it is hardwired a GFCI breaker isn't needed. You have the possibility of faulty trips if there are two GFCI on the same line. I think some EVSE have the ability to disable the built in GFCI.
 
If you are installing a 14-50 outlet code now would require a GFCI breaker but if it is hardwired a GFCI breaker isn't needed. You have the possibility of faulty trips if there are two GFCI on the same line. I think some EVSE have the ability to disable the built in GFCI.
Is there a way to mitigate the possibility? I.e. anything I can do on my part so it will charge without tripping?
 
Yeah hardwire the unit and don't have a GFCI breaker installed.

Looking up this issue on google shows lots of other threads on this very debate with a few other answers.
 
Yeah hardwire the unit and don't have a GFCI breaker installed.

Looking up this issue on google shows lots of other threads on this very debate with a few other answers.
I only have the mobile dual charge cord, I am unsure how that would be hardwired in. I guess I will deal with the tripping GFCI until I can afford a hardwired one.
 
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I only have the mobile dual charge cord, I am unsure how that would be hardwired in. I guess I will deal with the tripping GFCI until I can afford a hardwired one.
Looking at the new requirements looks like if the breaker is under 50 AMPS it doesn't need to be a GFCI one for EVSE.

edit: fixed typo
 
Looking at the new requirements looks like if the breaker is under 50 AMPS it doesn't need to be a GFCI one for EVSE.

edit: fixed typo
Thank you! Can you show me where you found this info from so I can pass it along to my electrician and see if it'll apply to our work?
 
mmm I may have read a comment incorrectly while I went off to bed there. so ignore that.

There is a lot of confusion around this yes.. some say if you label the receptacle as EV Charging only you'd be okay.



kiaevforums.com/threads/evse-and-gfci-conundrum.4352/
 
Discussion starter · #57 ·
Thank you! Can you show me where you found this info from so I can pass it along to my electrician and see if it'll apply to our work?
Kev, GM has a dedicated number for you that I posted above. Call them Ask them to confirm and send you the details. No need for a middleman or the internet.

Update: the people who answer are not experts or even close. They will refer you to Qmerit: 1-888-272-0090
 
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Kev, GM has a dedicated number for you that I posted above. Call them Ask them to confirm and send you the details. No need for a middleman or the internet.

Update: the people who answer are not experts or even close. They will refer you to Qmerit: 1-888-272-0090
LOL thank you. I'll give them a call before doing the professional work. It looks like we're going to go with the GFCI breaker anyway, and I'll just work around it possibly tripping.
 
Discussion starter · #59 · (Edited)
There are pricing, specs, warranty, Q&A details on the Dual Level Charge Cord, the Power Up+ Level 2 charge station and other units at the AC Delco Site, Kev. GFCI is not discussed however.
 
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