Description
The Model 2644 3-Phase Monitor
continuously monitors 3-phase Wye or Delta systems for abnormal
conditions.
The solid-state electronic
sensing circuitry drives an internal DPDT relay, allowing
the Model 2644 to operate two motor control circuits, or
a control circuit and an alarm circuit. An adjustable trip
delay reduces or eliminates nuisance tripping caused by
momentary voltage fluctuations on motor start-up. An optional
restart delay gives approximately a 3.5-minute delay when
the relay drops out, to allow compressor head pressures
to bleed off, in the event of short-term power failures.
Voltage adjustment ranges
are sufficiently wide to allow for proper calibration to
existing conditions. Both TRIP and NORM indicators are provided
to aid in adjustment and system troubleshooting. Automatic
and manual reset versions are available. The Model 2644
Monitor is not sensitive to line current, and can be used
with any size
motor or compressor.
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•
Monitors low voltage, phase loss and phase reversal
• Optional restart delay
• UL Recognized and CSA
Certified
• 5-Year unconditional
warranty
• Automatic or manual reset
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Applications
