for those of you who need both the 15amp and the 30amp on RAP control I found this relay has one coil but 2 isolated
30amp rated contacts. This allowed me both a power amp and a 2 way radio that I could never accidentally leave on.
its meant for hot tubs so it weather proof. and could even be used under the hood for emergency lighting circuits
http://www.aqua-man.com/row_num.asp?ic=80056&froogle=1