Over Voltage Protection Three Phase Voltage Monitoring Relay For Control Cabinet
♦ Features
-- Compact modular 43mm housing
-- Microprocessor technology provides highly accurate and repeatable protection
-- Built-in LCD and keypad afford a precise digital setting
-- Adjustable over- and undervoltage,phase unbalance threshold
-- Independent adjustable delay time for overvoltage, undervoltage, voltage unbalance,
phase loss and phase sequence
-- Adjustable reset method:automatic reset or manual reset
-- Start delay(power-on delay)
-- Test trip with test button
-- 1 NO & 1CO contacts
-- with Timer and Counter for runing and faults
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Protective Function
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Typical Applications
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Phase sequence
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Pumps |
| Phase loss |
Fans |
| Overvoltage / Undervoltage |
Refrigeration Units |
| Voltage unbalance |
Lifts / Elevators |
| Timer and Counter |
Mining excavators and conveyors |
Model JVR800-2
Measuring circuit L1,L2,L3
Rated voltage 208~480VAC,50/60Hz
Monitoring functions phase sequence, phase loss, overvolatege, undervoltage,voltage unbalance, timer, counter
Overvoltage setting range 200-600V
Undervoltage setting range 150-500V
Voltage hysteresis 1-20V
Delay time for overvoltage and undervoltage 0.1-30s
voltage unbalance ratio 1-50%
voltage unbalance hysteresis 1-10%
voltage unbalance delay time 0.1-30s
Delay time for phase loss 0.1-30s
Delay time for phase sequence 0.1-30s
Start delay time 0-999s
Auto reset mode ON/OFF
Auto reset time 0.1-999s
Timer and counter input AC/DC 80-450V
Indicators LCD indicating voltage,current,operation status
Output contacts 1 C/O,1NC
Contact capacity 6A ,250VAC
Dimensions (H x W x D) 80×43×54mm
Mounting DIN rail
Product Tags:
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Over Voltage Protection Three Phase Voltage Monitoring Relay For Control Cabinet Images
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