chris1howell
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Re: Inside the EVSE

Sun May 06, 2012 6:05 pm

Barbouri wrote:The blue wire is the pilot signal, there is no proximity wire entering the enclosure.

The relay is a DPST Tyco T92P7A22-240 with a 240 vac coil.
The small wires are attached to a male spade lug connector which is part of the main power female connectors.
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What I really found interesting was the daughter-board attached to J7, which seems to be a way of passing a controlled current on the protected side of the GFCI coil.

Greg C.
That IS the same relay as many OpenEVSE Builders are using except we use the 12V coil so the EVSE can be L1 or L2.

The wire to J7 is most likely there to read the voltage on the line for a stuck relay test. OpenEVSE is doing the same thing with the advanced power supply. Do you have a source for the spade lug connector, I could use a bunch of those... :D

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QueenBee
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Leaf Number: 2062
Location: Bellevue (Seattle), WA

Re: Inside the EVSE

Sun May 06, 2012 6:26 pm

GlennD wrote:I used to have a Leviton until I built my own. I see that they use the Blue proxy switch wire. My Leviton EVSE shut down when the switch was pressed.
Did it have a delay before it shut off the EVSE? You'd want to give the charger time to stop drawing before deactivating the EVSE relays.

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Barbouri
Posts: 79
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Re: Inside the EVSE

Sun May 06, 2012 6:33 pm

chris1howell wrote: The wire to J7 is most likely there to read the voltage on the line for a stuck relay test. OpenEVSE is doing the same thing with the advanced power supply. Do you have a source for the spade lug connector, I could use a bunch of those... :D
They are available from Digikey and several other electronics parts suppliers. Usually listed as piggyback terminals.

http://parts.digikey.com/1/parts/121723 ... -0033.html
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Greg C.
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mitch672
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Location: Boston, MA

Re: Inside the EVSE

Sun May 06, 2012 6:59 pm

Thanks Barbouri, wish I had known about those before I spent time jamming the #10 and #22 AWG into a single terminal on each of the four relay contacts, this is much better and easier to maintain as well.

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pii100
Posts: 85
Joined: Mon Oct 18, 2010 8:47 am
Delivery Date: 17 Jun 2011
Leaf Number: 1877
Location: Austin, TX

Re: Inside the EVSE

Wed May 23, 2012 3:05 pm

Coulomb Technologies CT500
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