main breaker and unit breaker/switch questions
went to a mobile home and found the following;
80 amp main panel breaker feeding 2 60 amp unit switches(breakers).
Electric strip heat- 4 elements and blower, so 85+ with all on.
wire comes into unit's bottom switch and then jumper wires feed the upper 60 amp switch.
1) bottom unit switch is overheating and tripping, why? I questioned if the total amp draw was going through that switch since the feed came into the back/incoming side and then split off. Sparky said no.
2) is the jumper set up okay? usually there is a buss bar or factory metal and plastic splitter to do this.
sent our sparky out there and he determined the wire size could only support 80 amp load.
I had left 4th element disconnected, so only 65+ amps on the 80 amp panel breaker. unit's top switch had 2 elements and fan, bottom now has only 1 element.