Eh? What invertor? We are talking about a box with BFO resistor in it to take to the scrappy to check out the batteries he has. Before purchasing same for use with the invertor/UPS at home...
power cuts
Feb 04, 2005
41 Replies
Oh, right. I thought you meant in service. Anyway, I wouldn't worry about 20A. Over 50A or so, yes, you need some sort of disconnect, and over 100A, it's practically vital.
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