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HUBBELL YQ230 Intelligent Y-Adapter 50A-2 30A, See Image
Hubbell Marine intelligent Y adapter with 3 pole contactor breaks both hots and neutrals to prevent possibility of live plug when not engaged. Combines two oppositely-phased 30A, 125V receptacles to provide 30 volts of power. Environmentally sealed against humidity, fog and rain. Cord clampers prevent strain on terminals. Sealing grommets keep moisture out. UV resistant high-impact housing. Safety indicator light (When ON, safe operation is indicated). Fully molded Hubbell plugs. 30 ampere plugs connect to 30 ampere shore power. 50 ampere connector body mates with boat's male end of cord set.

Price is $702.00
Price: $701.97