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Chongqing Blue Jay Technology Co.,Ltd
Chongqing Blue Jay Technology Co.,Ltd  

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ELR 4MD DC Earth Leakage Relay 

Price: 150.0 USD 
Payment Terms: T/T,WU,Paypal 
Place of Origin: Chongqing, China (Mainland) 
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Product Detail

Model No.: ELR-4MD
Production Capacity: 1000 pieces/month
Delivery Date: 7-20 days
Size: Miniature
Contact Load: Low Power
Brand Name: Blue Jay
Power consumption: ≤4VA
Leakage current alarm threshold: 1-30mA / 5-100mA can be set
Communication: RS-485 MODBUS-RTU
Means of Transport: Ocean,Land
Packing: Carton
Theory: Electromagnetic Relay
Protect Feature: Sealed
Usage: Protective
Power supply: 85-265Vac/dc, optional 48VD...
Frequency: 50/60Hz, Accuracy ±0.01Hz
Time delay: 50ms-10sec, can be set

The ELR-4MD DC Earth Leakage Relay is an advanced protection device designed to enhance the safety and reliability of electrical systems.

With a hall effect current sensor (HCT), it continuously monitors the residual current in the busbars or branches of the DC system. When the residual current exceeds the preset threshold, the relay promptly outputs an alarm signal, ensuring early detection of potential faults.

Equipped with alarm function, the ELR-4MD ensures that alarm signals remain clearly indicated until received the reset signal, facilitating easy fault diagnosis and troubleshooting. ELR-4MD is critical for preventing equipment damage, minimizing downtime, and safeguarding personnel against electrical hazards.


Feature


  • 2XSPDT relay outputs;

  • Hall current sensor measurement;

  • Remote test/rest connections;

  • Standard 35mm din rail mounting;

  • RS485 Modbus communication;

  • Adjustable trip levels and time delay.


Application:

  • Smart grid system;

  • Medium and low voltage systems;

  • Commercial and residential buildings;

  • Utilities and power distribution systems;

  • Motor control panels and switchboards;

  • DC system leakage current measurement;

  • Industrial control system (PLC, SCADA, DCS).


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Tel: 86-23-67628702
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Company Info

Chongqing Blue Jay Technology Co.,Ltd [China (Mainland)]


Business Type:Manufacturer, Trading Company
City: Chongqing
Province/State: Chongqing
Country/Region: China (Mainland)

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