I recently had a sub panel installed with a couple of extra 20amp breakers available for expansion. I have 2 240 volt circuits that run through the shop; did not think to add extra 120 volt line at the time. Is there some way to fashion an adapter that uses a 240 volt plug and uses only one leg of the circuit to produce a 120 volt service line? Or, should I just add another 120 volt ircuit from the sub panel?
If you ran 4 wires to your 240v boxes there is a device that has NEMA
6-20 and 5-20 or 5-15 receptacles on the same yoke. You do need the neutral (white) wire in there. If you have the 4" box you could use regular devices. (one each).I think it is better to just run a regular 120v line out there since you have the slot.
Yes you can do that but you may "Unbalance" the load depending on what it is. A simple solution may be to use one of the wires as a pull-string and attach the new circuit to one end and pull it through JUST REMEMBER TO ADD THE WIRE YOU ARE PULLING OUT.
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