Ecvv Trade
Beijing Spaceflight Huanyu CO.,Ltd.

China Manufacturer with main products: Electronic Overload Relay, Electronic Overcurrent Relay, Overload Relay, Digital OverCurrent Relay, Digital Overload Relay, Digital Motor...

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Digital Over Current Relay

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Place of Origin: Beijing in China


Compact Design
MCU (Microprocessor Control Unit) Based
Three Integral Current Transformers
Multiple Protection Functions
Digital Ammeter / 3 Phase Current Display
Troubleshooting / Trip Cause Memory, Display
Adjustable Operating Features by Mode switch
Wide Current Adjustment Range
Selectable Time-Current Characteristics (Inverse / Definite)
Manual (Instantaneous) / Electrical (Remote) Reset

Test Function
Ambient Insensitive
Selectable Fail-safe and Non-fail-safe Operation Modes
Inverter (20~400Hz)
HTHY-3DE: Panel Mounting type
HTHY-FDE: Flush Mounting type (Display)
Protective Item Trip Time
Over-current DEF: 0.2~30sec INV: 1~30
Undercurrent 0.5~30 sec
Phase Loss within 3 sec
Phase Unbalance within 8 sec
Phase Reversal 0.1~0.3 sec
Locked Rotor Lock: Within 0.5sec after D-time (in DEF set)
Stall: 0.05 ~ 10sec (in DEF set)
Current Range
Over Current 0.5~960a (Over 60A with External CTs)
Under Current 0.5~59a / OFF (Over 60A with External CTs)
Phase Unbalance 5~50%
Alert Setting
50~100% of Oc setting

Service Process

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