L14-30 Locking Female Generator Plug 30A 125/250V (L14-30C) UL Listed
Great for connecting to a generator with a 120/240 volt outlet. I have used similar plugs with 12-4 and 14-4 600 volt rated wire and 10-4, 12-4 and 14-4 300 volt rated wire. Insulation Resistance:AC 2000V 1.