Hubbell YQ100 Plus Y Adapter 100A 125-250 - 2 50A 125-250

YQ100PLUS - Safely powers a 100A, 125/250V AC boat from two 50A 125/250V AC receptacles at dockside - or - from a single 50A 125/250V AC receptacle acting as a single adapter. Internal Logic Senses That: Both plugs are fully engaged (i.e., one is not dangling loose while the other is plugged in) - or - the ""A"" leg plug is engaged to access a single 50A, 125/250V receptacle. The polarity of the receptacle on the dock is correct (i.e., no mis-wiring of the hot and neutral wires). The two receptacles are from correct phases. Note: The YQ100PLUS Adapter must be plugged into two 50A, 125/250V AC receptacles that are on the same phase to achieve 100 amp, 125/250 volts power - or - the ""A"" leg 50A male into a single 50A, 125/250V AC receptacle to achieve 50 amp, 125/250 volts power.