Time Mark A269 - Over and Under 3-Phase Monitor, 120 VAC, 110 -145V, 80 -115V, 60Hz, 1.5W

The Time Mark A269 Over and Under 3-Phase Monitor continuously monitors 3-phase lines for high voltage, low voltage, phase loss, or phase reversal. This device features a solid-state voltage and phase-angle sensing circuit, which drives an SPDT output relay. The A269 model offers 120 VAC of nominal AC voltage, 110-145V (Upper) and 80-115V (Lower) adjustment range, 60Hz frequency, and 1.5W power consumption.

The Model 269 series is independent of the system load and may be used on any horsepower motor. When the phase sequence is correct, and the voltage remains between the upper and lower trip points, the output relay remains energized. When a fault condition is sensed, the output relay drops out.

The Model 269 series does not require a neutral connection and can be used on Wye or Delta systems. Each of the four voltage versions can be adjusted over a wide range. An adjustable trip delay (1-10 seconds) prevents nuisance tripping. OVER and UNDER voltage failure indicators aid in calibration and system troubleshooting.

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