3-Phase Monitor with Line Voltage & Phase Sequence Indicator

EX2638-380V

The EX2638 3-Phase Monitor provides essential protection for industrial equipment operating on 380VAC, 50Hz systems. This device accurately detects critical anomalies such as phase loss, phase reversal, and low voltage conditions, safeguarding machinery from potential damage. Its automatic reset function ensures continuous operation following fault correction, minimizing downtime. With a rapid response time of 0.05 seconds and a repeat accuracy of ±0.1% under fixed conditions, the EX2638 offers precise and reliable monitoring. LED status indicators provide immediate visual feedback on system health. Designed for durability, it features a robust ABS plastic enclosure and operates effectively across a wide temperature range from -20° to +131° F. The unit's SPDT 10A output contacts at 240VAC resistive ensure compatibility with various control circuits. This monitor is engineered for long-term performance, supported by a 5-year unconditional warranty, providing a dependable solution for maintaining operational integrity.

3Ph Pwr Mon 50Hz

DOWNLOADS:

ex2638-380v

Specifications

FeatureDetects Phase Loss, Phase Reversal and Low Voltage
FeatureLED Status Indicators
FeatureAutomatic Reset
Warranty5 Year Unconditional Warranty
Nominal Voltage380VAC
Frequency50Hz
Adjustment Range300-400
Power Consumption6.5W
Transient Protection2500V for 10ms
Repeat Accuracy±0.1% (fixed conditions)
Response Time0.05 seconds
Reset Time0.05 seconds
Reset TypeAutomatic
Dead BandApproximately 2%
Output ContactsSPDT 10A at 240VAC resistive
Expected Relay Life (Mechanical)10 million operations
Expected Relay Life (Electrical)100,000 operations at rated load
Operating Temperature-20° to +131° F
Humidity Tolerance0-97% w/o condensation
Enclosure MaterialABS plastic
MountingSurface

FAQs

What specific electrical conditions does the EX2638 monitor detect?
The EX2638 3-Phase Monitor is designed to detect phase loss, phase reversal, and low voltage conditions within a 380VAC, 50Hz system.
What are the operational voltage and environmental temperature limits for the EX2638?
The EX2638 operates at a nominal voltage of 380VAC with a 50Hz frequency. It functions reliably in temperatures ranging from -20° to +131° F and humidity from 0-97% without condensation.
What is the response time and output contact specification for the EX2638?
The EX2638 has a response time of 0.05 seconds. Its output contacts are SPDT 10A at 240VAC resistive, providing robust control capabilities.