ZHRA3 Motor Protector relay

ZHRA3 Motor Protector relay
ZHRA3 Motor Protector relay

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Categories Motor Protector Relay
Rated control supply voltage AC/DC100V~240V AC380V. AC220V. 50Hz/60Hz
Contact capacity Ith:5A;AC-15;Ue/Ie 380V/0.95A 240V/1.5A
Setting mode Button setting
IP Class IP20
Use category AC-15
Start time 2s~ 120s adjustable
Tripping class tripping class(5,10,10A.20.30)
Protection Overload, current unbalance, phase loss, temperature
Current unbalance rate 40%~ 90% adjustable
Installation Manfame panel inslation tansomer panel isalatioii by screw orail
Function

 

Applications

Used in air conditioning units, elevator machine room, pumps, fans and other motor control applications, as protection  of  over-voltage,  under  voltage, phase failure, phase sequence and phase unbalance. When the power  supply is abnormal, turn off power supply to protect the equipment.

Features 

      Built-in microcontroller, installed in a cabinet or 1/4 drawer unit. Currentmeasurement accuracy ≤ 2%, button setting, LCD backlit display current, faultstatus. 5 optional adjustable overload characteristic. With 1-set changeover and1-set auxiliary NO contacts. Enable star-delta and  auto  buck starts.Optional 4mA~ 20mA analog output and RS485 communication interface,support Modbus protocol, available network communication.

Rated control supply voltage AC/DC100V~240V、AC220V、 AC380V 50Hz/60Hz
Stting current range 1A~5A、2A~10A. 6A~30A、 10A~50A. 40A~200A
Protection Overload, underload, current imbalance, open phase, locked rotor, grounding, temperature
Setting mode Button setting
Start time 2s~120s adjustable
Tripping class tripping class (5, 10, 10A, 20, 30 )
Current unbalance rate 40%~90% adjustable
Ground fault current 50mA~500mA adjustable
Stall protection Stall current ratio 1.2 to 6.0 adjustable, stall protection time 1s~ 30s adjustable
Auxiliary contacts Set off or 1s~ (start time -1s) action, achieve star-delta and auto buck start
Underload 20%~90% of Setting current adjustable
Contact capacity Ith: 5A; AC-15: Ue/le 380V/0.95A 240V/1.5A
Use category AC-15
IP Class IP 20
Istallation Mainframe panel installation, transformer panel installation by screw or rail

 

Wiring Diagram
Wiring Diagram:Direct start,Secondary start,Auto buck start,Secondary current start
Dimensions
Dimensions:Mainframe,1~50A transformer,40~200A transformer

 

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