Southwire RV Automatic Transfer Switch 50A Hardwire Model 40100-001Switch power sources safely and automatically with the SouthWire 50 Amp Automatic Transfer Switch (Model 40100 001). This hardwired switch seamlessly transitions your RV from shore power to generator power and back again, managing the changeover for you so you never have to swap cords or flip manual switches at the campsite. Smart, Automatic Transfer When the generator is energized, the 40100 001 automatically switches to generator power after a 30