Could use some expert "been there, done that" answers to a question. I have a dedicated 30A line run from my breaker box in my home to a workshop out in the yard. It powers about 3 outlets,(only when needed such as a small fan)...and a couple of power tools like a band saw and table saw. When we built our RV carport, I tapped onto the line in the workshop and extended the service to a post at our RV so we could plug into shore power and keep the battery charged. We rarely ever use it for one of our a/c units. The workshop equipment is only used rarely. I want to put a cut-off switch in the workshop that I can simply turn the power on/off whenever I need to disconnect from shore power so that I don't get arcing at the receptacle while unplugging the cord from our RV. It is 50A but I have an adapter in my power box at the RV going to 30A. Without paying $30 or more for a metal box with breaker or a toggle switch, could I simply use a heavy duty 20A light switch at the junction in my workshop to switch off power to my RV when needed? As I say, there is never a lot of load on the line so I was thinking the light switch would suffice. Someone told me they wouldn't recommend it, so that's why I'm seeking opinions from the forum. Thanks for all replies. p.s. I only want to do this because it would be kind of inconvenient to have to go to the far end of the house at the breaker box and trip the breaker.
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