Model 2644 3-Phase Monitor

The Model 2644 3-Phase Monitor provides essential protection for industrial systems. Designed for 380VAC, 50Hz applications, it detects phase loss, low voltage, and phase reversal, safeguarding critical equipment from operational damage. Its auto-reset functionality minimizes downtime, allowing for continuous operation without manual intervention after a fault clears. The adjustable response time, ranging from 0.2 to 20 seconds, enables precise tuning to specific application requirements, preventing nuisance trips while ensuring rapid fault detection. With DPDT 10 amp output contacts, the unit offers versatile control capabilities. A robust operating temperature range of -20° to +131° F ensures reliable performance in demanding environments. Furthermore, its repeat accuracy of ± 0.1% of setpoint guarantees consistent monitoring. UL Recognized and CSA Certified, the Model 2644 ensures compliance and operational integrity for various industrial setups.

3Ph Pwr Mon

DOWNLOADS:

ex2644-380vac

Specifications

Reset TypeAuto Reset
Nominal AC Voltage380VAC (phase to phase)
Adjustment Range300-400V
Frequency50Hz
Power Consumption4.5W
FunctionDetects Phase Loss, Low Voltage and Phase Reversal
Warranty5 Year Unconditional Warranty
Transient Protection2500 VRMS for 10ms
Repeat Accuracy± 0.1% of setpoint (fixed conditions)
Response TimeAdjustable 0.2 to 20 seconds ±10%
Dead BandApproximately 2%
Output ContactsDPDT 10 amps at 240VAC resistive
Expected Relay Life, Mechanical10 million operations
Expected Relay Life, Electrical100,000 operations at rated load
Operating Temperature-20° to +131° F
Humidity Tolerance0-97% w/o condensation
Enclosure MaterialABS plastic
MountingSurface
Agency ApprovalsUL Recognized and CSA Certified

FAQs

What types of phase issues does the Model 2644 monitor detect?
The Model 2644 3-Phase Monitor detects phase loss, low voltage, and phase reversal.
What is the nominal operating voltage and frequency for this monitor?
The Model 2644 operates at a nominal AC voltage of 380VAC (phase to phase) with a 50Hz frequency.
Is the response time of the Model 2644 adjustable?
Yes, the response time of the Model 2644 is adjustable from 0.2 to 20 seconds, with a tolerance of ±10%.