The sub panel that is right next to the 200 amp main service panel. The sub
is fed from a 100 amp breaker in the main. The main breaker and the 100 amp
breaker in the main panel are easily reached without takeing a step away
from the sub. Since the panels are right next to each other, does the sub
need its own main breaker?
Can I use #3 AWG for the 100 Amp supply to the sub?
Previous owner added this sub panel to be used for his generator, inverter
set up. The panel was wired only to one side of the line because his 120 V
Yes, because it protects the wires used to connect the sub-panel.
You have to run wire that is rated for the full main amps, if you wanted
to get rid of the breaker that feeds the sub-panel. That is how multiple
boxes (in big houses) are wired up, so that they all shut off a single
If you run smaller wire, then you have to go with the feed breaker like
you have now.
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