This Surge Guard Automatic Transfer Switch with Shore Power Sensing is RVC compatible with full RV power protection. Transfers to generator power automatically when energized after 30 second delay (generator mode). When both shore and generator power are available, generator dominates after a 30 second delay. Once generator shuts down, shore power activates after 3 second delay. Provides protection against: power surges, open ground, open neutral, low (132V) voltage, reverse polarity, miswired pedestal, and high and low frequency. RVC communications allows instant display of voltage, current, and fault conditions on an RVC compatible device. RVC network communication of both generator and shore power availability through exclusive shore power sensing technology. Allows the RVC network to better control the power source of the RV and reconnect with shore power when it is available. Indicator lights on front of ATS indicate presence of input power for L1 and L2. 65A, FLA mechanical interlocking contactors. UL approved – UL1008 full transfer switch rating. UL/CUL listed.