The manufacturer ran two smaller circuits to the selenoid instead of a larger wire. Each wire is protected by an auto reset 90 amp circuit breaker. The solenoid is turned on/off by a switch on the dash that turns the A/C and heat on and off. It is not always on.
I looked it up in the parts manual and the solenoid is only 100 amp which is why it seemed small.
Oh, I misunderstood. I thought this was the solenoid you already had hooked up as a battery crossover that is doing screwy things.
This is the old A/C solenoid that I am trying to use as a battery crossover. Now that I realize it is only 100 amp rated I need to replace it anyhow.