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mwalsh
Posts: 9643
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: EVSE wiring and/or GFI Breaker

Mon Feb 04, 2019 9:35 am

Oilpan4 wrote:I don't use GFIC breakers on my charger circuits. Just what I need for the GFIC to trip after I plug the car in at night and walk away and come out to a car that hasn't charged at all when I have to go to work.
I thought of that too, which is why I installed my EVSE just inside the garage door and trail the cord out to cars in the driveway. However, outdoor installation on any circuit here requires GFCI, and on a 240v circuit there are limited options for outlets with GFCI from legit suppliers ( in a quick search on the Google right now and I'm not finding any that are not Chinese or off-brands). So a GFCI circuit breaker from a known entity might be the easiest/safest option.
2011 Blue Ocean SL with 83,000 miles
2015 pack on 12/30/15
Tinted windows
Bosch AGM 12v
Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
Superbright LED lighting
2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
Altima illuminated door switches

Oilpan4
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Posts: 851
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: EVSE wiring and/or GFI Breaker

Mon Feb 04, 2019 5:13 pm

I have bought 2 pole GFIC breakers up to 50 amps before in square D homeline and QO configuration. They are around $150 each I absolutely use them when doing hot tub or pool pump installs.
Lowes and homedepo are the cheapest places to get them. I normally buy them as part of a spa sub panel kit.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

arnis
Posts: 965
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: EVSE wiring and/or GFI Breaker

Tue Feb 05, 2019 12:26 pm

Oilpan4 wrote:I have bought 2 pole GFIC breakers up to 50 amps before in square D homeline and QO configuration. They are around $150 each I absolutely use them when doing hot tub or pool pump installs.
Lowes and homedepo are the cheapest places to get them. I normally buy them as part of a spa sub panel kit.
Darn how everybody gets ripped off in US.
ABB and other known RCCDs with same parameters cost 25-45€ here where I live. And even this price already has profits included :geek:

RCCD is required for all exterior outlets and electrical devices. That includes EVSEs. AFAIK, EVSEs already come with RCCD built in. Mine did.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

Oilpan4
Gold Member
Posts: 851
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: EVSE wiring and/or GFI Breaker

Tue Feb 05, 2019 5:26 pm

We are supposed to have them out side and in garages.
All my out side 120v ones are gfi.
Everything in garage is supposed to be but my high frequency start welder will trip them.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

arnis
Posts: 965
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: EVSE wiring and/or GFI Breaker

Wed Feb 06, 2019 4:07 pm

Oilpan4 wrote:We are supposed to have them out side and in garages.
All my out side 120v ones are gfi.
Everything in garage is supposed to be but my high frequency start welder will trip them.
YEP, devices like that will trip those.
Have a different outlet for that device and get adjustable GFI breaker. Some have time-limitations and or current limit.
Ideally 30mA but welder might need more time and or current.
One GFI breaker per household is fine. Though expect everything goes black if you trip it :D
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

Oilpan4
Gold Member
Posts: 851
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: EVSE wiring and/or GFI Breaker

Wed Feb 06, 2019 9:25 pm

Like a gfi main?
Yeah that would be bad lol.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

arnis
Posts: 965
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: EVSE wiring and/or GFI Breaker

Thu Feb 07, 2019 9:21 am

Multiple RCCD is actually a ripoff.
Those should theoretically NEVER trip.
Adding 15 breakers under one RCCD is absolutely fine.
It's important not to exceed maximum current. Therefore
either add up all the breakers or add a breaker before RCCD with the
same value as RCCD (except it RCCD already has current and short tripping function).
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

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