I recently installed a Smart BP-65 LVD in my engine bay to shut off power to all my accessory devices when the voltage gets low. While out slow crawling on a 4wheel trail, the LVD suddenly shut off and I saw that it had shut off due to over temperature. There was little to no draw on the device at the time (maybe 5A tops), so the engine bay temp was the problem, not excessive draw.
I am considering moving the LVD into an area behind the dash, and using it to power a remote relay in the engine bay. This should move it out of the hot engine bay. However, I am concerned that if the car is parked in the summer the cabin temps can get quite hot as well.
I am trying to see what the actual over temp shut off value is. I see the operating temp range maxes out at 40C for full load and “up to 60% of nominal load at 50°C”. However, the load on it while using the remote relay will be almost 0. If the actual overtemp shut off is at 50C (only 122F) I am concerned that it could shut off and kill power to my aux circuit (including my fridge) if the car is parked in the summer with the windows closed.
Does anyone know the actual overtemp shut off value? Should I be fine with it mounted behind the dash?
