RV Automatic Transfer Switch 50 Amp,240 VAC,70A Neutral Rating,120/240 Volt 50 AMP TRANSFER SWITCH-ensure critical loads can seamlessly switch to backup power in the event of a power failure,make guarantee power continuity and reliability APPLICATION-can be used in RVS,Camper,Travel Trailer,speedboats and a variety of high-power devices that require emergency power. AUTOMATIC-when a main power supply failure or overload, the transfer switch automatically switches to the backup power source according to preset priorities and switching strategies RELIABLE- adoption of metal casing, which makes it waterproof and dustproof, and is specially born for outdoor use of RV Double Protection — Double protection of built-in mechanical interlocking and control circuit to prevent short circuit caused by two independent 120/240 volt AC power supplies entering the AC switchboard at the same time PROTECTION — Double protection of built-in mechanical interlocking and control circuit to prevent short circuit caused by two independent 120/240 volt AC power supplies entering the AC switchboard at the same time