The SVT’s monitors single phase AC voltage or DC voltages and operates DPDT output contacts when the voltage is within the adjustable set points. There is an adjustment for the nominal voltage, differential percentage for over and under voltage and re-set time before the output contacts will re-energize. There are also LEDs to show when the output relay is energized and if a fault condition exists. A drop-out delay of 0.2 seconds is set to avoid nuisance tripping due to momentary changes in voltage.
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