Quick jump in,
My Trains have a 240v three phase supply that runs the length of the train. It is protected by a 50 amp three pole breaker at the car with the generator. It lives in a raintite box under the car.
In the summer, when ambient approaches 90, and the sun is beating on the box that the car knockers have painted black, the breaker trips cause it dang well feels like it. Because of where it lives and it's 90 degree trip, ambient air temp trips it, rather than overcurrent. I am not far from putting equipment fans in the box to cool it off. With maybe a duct to pull the air over the ice box first.
TW
never underestimate the perversity of an inanimate object.
