Reply by georgieporgie

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Posted on Electrical problems in my new shop. Help please

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54 posts in 1495 days

#1 posted 08-06-2017 11:39 AM

Hello Sweet Tea, I think these are subpanels that are fed from the main panel in the house. To know the amp rating of these subpanels you have to go to the main panel and see what the amp rating of the feeder breaker is. You are right, there is not room to add breakers to these panels for new 20 amp circuits. As for why your tools seem to be sluggish, I wonder if there are poor connections that are limiting current flow to your machines. If you have experience with a multimeter, you can turn off power to the circuit and then measure the resistance from the breaker to the receptacle. If you don’t have much electrical experience then I recommend getting an electrician. A fire or worse seems possible if a mistake is made. Good luck! George

-- - George: Richland, Washington

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