jjeff
Posts: 1411
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Zencar 32a adjustable portable L2/L1 EVSE

Mon Jan 09, 2017 5:47 am

Per Zencar:
"1. The GFCI can be installed in the EVSE, but many customers feedback it will affect the normal using of the EVSE. So normal GFCI do not have GFCI;

2. There is diode protection in our EVSE;

3. Normal cable is TUV. The UL cables can be customized, but it's only suit for 16A, because 32A UL cable is too thick to fit the box."

So it sounds like GFCI is optional but it's been known to cause charging issues so it's not the norm, unless specified. Not sure if it's the same but I have GFI outlets in our basement and for the most part they are a PIA, occasionally tripping without a cause sometimes just by flipping a light switch. I wouldn't want my EVSE tripping out inadvertently in the middle of the night if I needed the charge to get to work.
Not sure what to make of the UL statement but maybe because this EVSE can go to 32a(although I had mine limited to 30a) UL listing would require the more expensive and bulky 8 gauge wire to be UL listed? Note the included cable is slightly thicker than 10 gauge but is metric, maybe UL doesn't recognize metric sizing and therefore call it 10 gauge, only capable of 30a??
Regardless I'm fine with the EVSE, it's working just great for me but I'd understand others feeling differently and for those there is something like Clipper Creek or other brands almost twice the price and less versatile than this EVSE :)
But it does sound like if GFCI is important to you, the mfg. can add it and it does have diode protection, sounds like adding UL would be more problematic because of the amperage of this EVSE. Of course if you wanted a slightly longer input cord than the norm(I wanted 30") that would also forgo UL listing as it won't allow more than a measly 12".
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

GlennD
Forum Supporter
Posts: 1164
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: Zencar 32a adjustable portable L2/L1 EVSE

Mon Jan 09, 2017 9:40 am

From the front of the J1772 looking into it.


0 L1 0 L2

o o pilot

0 Ground

It sounds like their GFCI implemetion has problems GFCI is a powerful safety device. I know the widely favored Clipper Creek passes.

I place the unit into charge using an emulator. I then test the GFCI with test resistors.

Since the pilot is a 1KHZ square wave most any diode will w2ill work.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250E

GlennD
Forum Supporter
Posts: 1164
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: Zencar 32a adjustable portable L2/L1 EVSE

Mon Jan 09, 2017 9:41 am

Well it took all of the spaces out.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250E

wwhitney
Posts: 663
Joined: Sat Jul 17, 2010 10:10 am
Delivery Date: 01 Apr 2011
Location: Berkeley, CA

Re: Zencar 32a adjustable portable L2/L1 EVSE

Mon Jan 09, 2017 9:43 am

GlennD wrote:Well it took all of the spaces out.


If you want a fixed space block of text you can wrap it with the code tag:

Code: Select all

a b c
  c d
    e


Cheers, Wayne

User avatar
JimSouCal
Posts: 860
Joined: Tue Feb 08, 2011 12:54 pm

Re: Zencar 32a adjustable portable L2/L1 EVSE

Mon Jan 09, 2017 11:20 am

Interesting... My inclination is to have the GFI on the unit for portable use where unforeseen situations of water and AC could be encountered... My factual knowledge is limited..so might await the comment of another... Thanks again for sharing...

jjeff wrote:Per Zencar:
"1. The GFCI can be installed in the EVSE, but many customers feedback it will affect the normal using of the EVSE. So normal GFCI do not have GFCI;

2. There is diode protection in our EVSE;

3. Normal cable is TUV. The UL cables can be customized, but it's only suit for 16A, because 32A UL cable is too thick to fit the box."

So it sounds like GFCI is optional but it's been known to cause charging issues so it's not the norm, unless specified. Not sure if it's the same but I have GFI outlets in our basement and for the most part they are a PIA, occasionally tripping without a cause sometimes just by flipping a light switch. I wouldn't want my EVSE tripping out inadvertently in the middle of the night if I needed the charge to get to work.
Not sure what to make of the UL statement but maybe because this EVSE can go to 32a(although I had mine limited to 30a) UL listing would require the more expensive and bulky 8 gauge wire to be UL listed? Note the included cable is slightly thicker than 10 gauge but is metric, maybe UL doesn't recognize metric sizing and therefore call it 10 gauge, only capable of 30a??
Regardless I'm fine with the EVSE, it's working just great for me but I'd understand others feeling differently and for those there is something like Clipper Creek or other brands almost twice the price and less versatile than this EVSE :)
But it does sound like if GFCI is important to you, the mfg. can add it and it does have diode protection, sounds like adding UL would be more problematic because of the amperage of this EVSE. Of course if you wanted a slightly longer input cord than the norm(I wanted 30") that would also forgo UL listing as it won't allow more than a measly 12".

GlennD
Forum Supporter
Posts: 1164
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: Zencar 32a adjustable portable L2/L1 EVSE

Mon Jan 09, 2017 3:40 pm

The GFCI is just another layer of protection. The first OpenEVSE units lacked it and they worked fine. It is in the spec and I have junked all of my earlier non GFCI units.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250E

tgeliot
Posts: 13
Joined: Fri May 26, 2017 8:09 pm
Delivery Date: 20 May 2017

Re: Zencar 32a adjustable portable L2/L1 EVSE

Thu Jun 08, 2017 4:36 pm

jjeff wrote:. . . I have GFI outlets in our basement and for the most part they are a PIA, occasionally tripping without a cause sometimes just by flipping a light switch. . . .


Just FYI I have encountered GFCI units that were defective out of the box, and others that have gradually gone bad, such that they gave all these nuisance trips. Replacing the GFCI solved those problems for me.

tgeliot
Posts: 13
Joined: Fri May 26, 2017 8:09 pm
Delivery Date: 20 May 2017

Re: Zencar 32a adjustable portable L2/L1 EVSE

Thu Jun 08, 2017 4:37 pm

GlennD wrote:. . .
I place the unit into charge using an emulator. I then test the GFCI with test resistors.

Since the pilot is a 1KHZ square wave most any diode will w2ill work.


I understand GFCIs and testing with resistors, but what is all this about diodes?

jjeff
Posts: 1411
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Zencar 32a adjustable portable L2/L1 EVSE

Fri Jun 09, 2017 4:08 am

tgeliot wrote:
jjeff wrote:. . . I have GFI outlets in our basement and for the most part they are a PIA, occasionally tripping without a cause sometimes just by flipping a light switch. . . .


Just FYI I have encountered GFCI units that were defective out of the box, and others that have gradually gone bad, such that they gave all these nuisance trips. Replacing the GFCI solved those problems for me.

Very true. I have replaced a couple GFCI outlets and things have gotten better, but I still get the occasional nuisance trip :x I have learned though to never put a light switch on a GFCI circuit, my guess is the switch(which controls mostly florescent lighting) might be arching, causing the outlets to trip.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

wwhitney
Posts: 663
Joined: Sat Jul 17, 2010 10:10 am
Delivery Date: 01 Apr 2011
Location: Berkeley, CA

Re: Zencar 32a adjustable portable L2/L1 EVSE

Fri Jun 09, 2017 7:26 am

jjeff wrote: my guess is the switch(which controls mostly florescent lighting) might be arching, causing the outlets to trip.

My understanding is that it is an inductive effect from starting the fluorescent lighting. Newer GFCIs may be more resistant to the issue, or sometimes switching brands helps.

Cheers, Wayne

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