electro7
Senior Member
- Location
- Northern CA, US
- Occupation
- Electrician, Solar and Electrical Contractor
Hi,
There is a 100 amp meter main combo panel with 2 breakers side by side. One is a 100 amp supplying a sub-panel, the other is for an A/C unit- may be a 50amp or so. If I were to tap on to the conductors on the load side 100 amp breaker supplying the sub-panel do I need to take into account the 120% busbar rating rule? I am trying to figure out if the busbar would ever see more than what it normally would with the solar backfeeding. Solar would go to loads in house first then out to utility, correct? Thanks for the help!
There is a 100 amp meter main combo panel with 2 breakers side by side. One is a 100 amp supplying a sub-panel, the other is for an A/C unit- may be a 50amp or so. If I were to tap on to the conductors on the load side 100 amp breaker supplying the sub-panel do I need to take into account the 120% busbar rating rule? I am trying to figure out if the busbar would ever see more than what it normally would with the solar backfeeding. Solar would go to loads in house first then out to utility, correct? Thanks for the help!