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Re: EVSE wiring and/or GFI Breaker

Posted: Tue Mar 01, 2016 11:50 am
by koolkev
I am leaning towards the HCS-40 P with 14-50 so I can take it with me if I go camping.

Back to GFI

Anyone have a comment on an Eaton Br Load Center GFCI breaker?
Any comment on AFCI breakers.

Thanks again.

Re: EVSE wiring and/or GFI Breaker

Posted: Tue Mar 01, 2016 1:14 pm
by QueenBee
koolkev wrote:I am leaning towards the HCS-40 P with 14-50 so I can take it with me if I go camping.

Back to GFI

Anyone have a comment on an Eaton Br Load Center GFCI breaker?
Any comment on AFCI breakers.

Thanks again.
AFAIK there aren't any 240 volt split phase AFCI breakers yet.

Highly recommend the HCS-40P!

GFCI breakers always seem too expensive compared to GFCI receptacles so I'd avoid them unless you have a specific need that would benefit from it which I don't this is one of them.

Re: EVSE wiring and/or GFI Breaker

Posted: Tue Mar 01, 2016 8:21 pm
by Valdemar
koolkev wrote:I am leaning towards the HCS-40 P with 14-50 so I can take it with me if I go camping.
You may not care, but
Q: Can I install a ClipperCreek 240V charging outdoors?

A: For outdoor installations we recommend installing a hardwired 240V EV charging station. ClipperCreek charging stations have a fully sealed NEMA 4 enclosure that provides superior protection to the components inside the station from outdoor elements. All of our plug-in 240V charging stations have an indoor rating due to the 240V plug. The plug-in units have the same fully sealed NEMA 4 enclosure, it is 240V plugs that are not rated for outdoor use and should not be exposed to the elements. Also, an optional wall mount connector holster can in installed indoors or outdoors. The optional holster provides a secure place to store the connector head and provides extra protection from the elements.

Re: EVSE wiring and/or GFI Breaker

Posted: Tue Mar 01, 2016 9:07 pm
by GlennD
A GFCI plug or breaker trips at around 5 MA. The EVSE specifications are for a 20 MA GFCI circuit. Under most conditions you can get away with a 120V 5 MA GFCI but you may experience unwanted trips. I think 20 MA is quite large but that is what it is.

Re: EVSE wiring and/or GFI Breaker

Posted: Wed Mar 02, 2016 3:41 pm
by arnis
RCCB in my EVSE (high quality brand in EU ABL Sursum) is rated to 30mA.

https://en.wikipedia.org/wiki/Residual- ... _operation
Graph on the right, we see AC-2 zone for 30mA. (AC-2: perceptible, but no muscle reaction).

Why use anything else, especially if there is a probability of unnecessary tripping?
All we want to do is not to get killed, that's all :lol:

Re: EVSE wiring and/or GFI Breaker

Posted: Wed Mar 02, 2016 10:20 pm
by GerryAZ
Some 240-volt EVSEs test for a good ground connection by passing a small current to ground. If they pass more than 5 mA, they will trip a GFCI breaker. Therefore, check EVSE manufacturer recommendations before buying an expensive GFCI breaker. As an example, the AeroVironment EVSE I purchased in 2011 will instantaneously trip a 240-volt GFCI breaker even without the cable plugged into the car because it draws more than 5 mA to check the ground connection. I would prefer to have GFCI protection on my EVSE supply circuit, but the AeroVironment unit will not allow it.

The Nissan 120-volt EVSEs (and upgrades from EVSEUpgrade) will work fine on GFCI-protected circuits. I sometimes use my EVSEUpgrade unit with 20-ampere, 240-volt circuits fed from GFCI breakers.

Gerry

Re: EVSE wiring and/or GFI Breaker

Posted: Thu Mar 03, 2016 5:06 am
by arnis
And why do we want to use 5mA limit? Small pets sticking paws into receptacles?

Re: GFI Breaker

Posted: Thu Mar 03, 2016 7:39 am
by Flyct
koolkev wrote:I would be happy to go $100 even if it isn't required. I picked one out and was quoted $300 but the counter man inferred that I choose a rare over specked part.
Home Depot sells the 50 amp 240/50a BR GFCI for $99 all day long.


http://www.homedepot.com/p/Eaton-50-Amp ... /100160831

Link above.

Re: EVSE wiring and/or GFI Breaker

Posted: Thu Mar 03, 2016 9:56 am
by GlennD
GerryAZ wrote:Some 240-volt EVSEs test for a good ground connection by passing a small current to ground. If they pass more than 5 mA, they will trip a GFCI breaker. Therefore, check EVSE manufacturer recommendations before buying an expensive GFCI breaker. As an example, the AeroVironment EVSE I purchased in 2011 will instantaneously trip a 240-volt GFCI breaker even without the cable plugged into the car because it draws more than 5 mA to check the ground connection. I would prefer to have GFCI protection on my EVSE supply circuit, but the AeroVironment unit will not allow it.

The Nissan 120-volt EVSEs (and upgrades from EVSEUpgrade) will work fine on GFCI-protected circuits. I sometimes use my EVSEUpgrade unit with 20-ampere, 240-volt circuits fed from GFCI breakers.

Gerry
That was the initial problem with OpenEVSE units using the mfg recommended 22K resistors. Switching to 47K resistors still worked fine with the light output load and they no longer tripped the external GFCI.

Re: EVSE wiring and/or GFI Breaker

Posted: Sun Mar 13, 2016 9:36 pm
by koolkev
Home depot is funny. The link above for the breaker isn't available all day at the moment but this is, GFTCB v GFCB:

http://www.homedepot.com/p/Eaton-50-Amp ... /206676933

That is what I got. Waiting on install

Thanks for pointing out the outdoor rating issue. I did get the 40P. I'm going to chance it with California weather and not "needing" it regularly. I have a 110v outlet in the garage but cement and such in the path for a new 220 in the garage. I was looking at a big NEAMA 4 enclosure but $700 more is not in the picture. That was for an enclosure big enough for everything including the cable. So I think it would have passed muster as indoor. Just run the cable out a grommited hole in the bottom. I got the RV outlet with cover and the GFI breaker so if I'm charging or letting someone else charge they can use 220.

I want to be able to take the 220 charger on trips so if I get somewhere with a 220 outlet I'm in business. I'm looking at RV campsites etc.