Wiring Circuit Breakers In Parallel. If that s not the issue and you have wiring safely rated for 30 amps replacing the 15 amp breaker with a 30 amp is a better solution than parallel 15 amp breakers. Switch off the main power switch.
Fuses or circuit breakers in parallel. Step 2 remove a knockout cover on the side of the subpanel that will be closest to the main service panel. Fuses and circuit breakers shall be permitted to be connected in parallel where they are factory assembled in parallel and listed as a unit.
Step 1 choose a subpanel with more circuit breaker slots than you need in the short run that has a separate ground wire bus as opposed to a panel that connects the ground wire to the neutral bus.
Nec 240 6 and 240 3 exception 1 conduit size 3 4 in conduit table 3a 1 conduit which allows 3 4 maximum in a 1 conduit example. If you re installing an afci breaker as shown on the following pages you ll also connect the neutral wire to the breaker. Lighting circuit 9 4 tube 4 50va tube 115v fluorescent circuits. Fuses and circuit breakers shall be permitted to be connected in parallel where they are factory assembled in parallel and listed as a unit.