Good afternoon. We are looking to purchase a multi-use generator (emergency home and maybe boondocking). The unit we are looking at has a L5-30R plug, but I believe the male end of my Grand Design T...
Most of the portable inverter generators that have the 30amp outlet are the TT-30 design.
You do see the L5-30 on trailers where the cord is not hard wired (just a male outlet on the exterior wall) but the standard RV cord transitions to the TT-30 where you plug into shore power (or generator).
But assuming your original post is correct, yes, you can use a 30amp to 30amp adapter.