I am trying to connect my battery generator to a Reliance transfer switch. The transfer switch has a male NEMA L5-30 plug (4-prong)

Can I plug a female L14-30R connector (4-prong) into it?


1 Answer 1


If you already have the transfer panel installed and wired, you could find or make an adapter that would take one hot, neutral, and ground from the 14-30 plug side and present it on a 5-30 receptacle for the inlet. This may limit you to making use of only half of your generator's output (3000W vs. 6000W - 24A at 125V vs. 240V) because generators with 240V output generally require 120V loads to be distributed equally across the two halves of the output - not placed entirely on one of the legs.

If you haven't purchased that unit, get the R304A (no '1' at the end) instead, which will have a 14-30 inlet. Or, better yet, set up a real backup sub panel with an interlock for the feeds. Should be less expensive that the silly Reliance thing (especially if you make the sub panel the same brand/type as your main so that you can just move the backed-up circuit breakers over instead of buying new).

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.