I also have a JuiceBox and it has always cycled the main relay when you
reset the unit, or apply power. The relay is closed for a very short
time. The relay is cycled if the EVSE is connected to the car or not.
Mine was a kit and I have had it for some time now but I recall that
characteristic being mentioned in the kit documentation.
I look at it as a very simple functional test. Yes, the main relay can
be activated, if you hear it close and open.
Tom
On 1/31/2016 9:49 AM, Rush Dougherty via EV wrote:
Hi all,
A friend has a Juicebox, one of the earlier ones, and when he plugged the power
cord in, I heard a thunk, thunk, like the contactor was engaging and
disengaging. I asked him if that was new and he said nope, whenever I plug it in
it does that. So I guess it was doing a contactor test.
Then I thought, is the J1772 plug must be hot when that happens? I plugged my
meter into the hot leads of the J1772, plugged in the power cord and heard the
thunk, the meter jumped to 220, heard another thunk and the meter went back to
zero.
Do you people that have a Juicebox experience the same sequence of thunk, thunk
when you initially plug the EVSE into a power source?
Rush Dougherty
Tucson AZ 85719
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