Power requirements on boats have increased, and these 2 Selector switches offer high power capacity (400 amps continuous), the ability to easily fit doubled cables, and conform to the industry standard mounting footprint (Guest, Perko, Blue Sea). Please note selector switches will not separate electronics from harmful engine starting spikes. Note: 771-S is replacing 721.
AFD=Alternator Field Disconnect Description Switch w/o AFD Type 1-2, Both