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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Electronic Overcurrent Relay

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Place of Origin: Beijing in China

Specifications

Overload and Phase Loss Protection
Independently adjustable starting and Trip Delay
Visual Current Setting Aid & Trip Indication (LED)
Flexible Power Supply
Fail Safe Protection (N type)
Electronic Shear-pin function

Description
Two of three phase motor currents are monitored by current transformers. External CTs are required for currents more than 60Amps. The internal solid state circuitry compares with the preset current level. When load currents exceeds the preset trip level, red LED illuminates, and after the preset time, the device trips, and changes internal SPDT relay contacts. Red LED remains illuminated indicating an overload trip has occurred and Green LED (PWR) goes off. Until manual or remote electrical reset by interrupting supply, is initiated.
If load current falls off below setpoint before the preset delay, device resets trip timer. With the visual aid of LED, flashing at 100% of preset load, actual load currents can be determined without the aid of Ammeter. Test button provides the means of testing service-worthiness and integrity of the device. Internal relay is energized in normal operation condition (fail-safe) and will not become ready mode with either supply lost or own failure.
Starting delay time range: 0.2-30 seconds.
Trip delay time range: 0.2-10 seconds. May be used as electronic shearpin by setting trip time to minimum.

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