I am using two Omron G3NAD210B solid state relays
in my build, one to turn on the high voltage side of my DC/DC and one to turn on the KSI circuit on my curtis 1238 controller. I was doing some testing this weekend and found out that both of these have enough leakage current to partially or completely power their circuits before the relay is actually turned on.
In the case of the SSR controlling the DC/DC, the voltage that is passed by the relay starts about 10V but then gradually creeps up until it is high enough to turn on the DCDC. My system voltage is 96V nominal, and at full charge is about 114V.
For the SSR controlling the KSI power, there is enough leakage to completely power on the controller before activating the relay. This is really surprising as the controller is drawing much more than the relay specs list as the leakage current (5mA).
I've read of people putting high power resistors across the load side of the SSR to eliminate this problem, but wanted input on this problem before I go this route. Anyone else have similar problems with their SSRs?