Xantrex Transfer Relay f/PROwatt SW Inline. It comes with a power plug for convenient connection to the inverter GFCI and a hardwire cord for the AC input and output interface. It is available as an accessory to the Prowatt SW product line. Specifications for Xantrex Inline Transfer Relay f/PROwatt SW: Manufacturer: Xantrex Color: Black Features of Xantrex Inline Transfer Relay f/PROwatt SW Remote transfer switch for inverter Switch between shorepower and inverter AC source Transfer Relay Size: 15A Includes power plug for the inverter GFCI and hardwire cord for AC input Package Contents: Xantrex Inline Transfer Relay f/PROwatt SW Xantrex 808-0915: Transfer Relay f/PROwatt SW Inline