Home Portable Generator Sub-Panel Installation Copyright-JunctionBoxes-460x345-IMG_6568


The arrow indicates the change from two single pole circuit breakers to one, two pole, 30 amp circuit breaker to feed the new generator sub-panel.

Because the junction boxes are metal, they are required to be grounded by using a green ground screw with one of the grounding conductors under it.

This Generator inlet is actually a 30 amp 4 prong twist lock plug
Two large junction boxeswere installed close to the main electrical panel and in the ceiling so that the circuit wires could be spliced and extended to the new generator sub-panel.