Whenever Electrical Power Falls Below 104 Volts Or Rises Above 132 Volts, The Ems Automatically Shuts Down Power To The Rv. Once The Electrical Power Rises Above 104-Volts, Or Below The 132-Volt Level, The Time Delay Indicator Flashes For The Preset Time And Then Automatically Restores Power To The Rv. Features 3-Mode Surge Protection, Reverse Polarity Protection, Open Neutral
