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ELR-4C

 

 

ELR-4C Earth-leakage relay class Type A with 4 channels

Multipoint earth leakage relay 4 inputs with associated toroid sensors measure the leakage current in an electrical installation to detect levels that may be damaging. Ideal for protection or alarming, the products offer multiple setting. RS485 is available.


Introduction
Range ELR
Product name ELR-4C
Product type Residual current protection relay
Current sensors compatibility CT-1 earth leakage current sensor

Technical characteristics
Application Residual current protection relay
Supply voltage 230 VAC 50/60Hz
110 VAC 50/60Hz (optional)
24/48 VAC/DC (optional)
24-230 VAC/DC (optional)
Power consumption 6 VA
Display type Backlight LCD (red TRIP)
Backlight LCD (yellow ALARM)
Type of measurement True RMS
Earth fault current internal measurement
Residual earth-leakage adjustment 0,030...30 A
Residual earth-leakage time delay adjustment 0,02...10 s
Alarm threshold setting 50...90%
Earth-leakage protection class Typo A
Filter 3th harmonic filter selectable
Test function Local
Remote test
Output relays 4 independent (TRIP)
5 A (240 VAC)
Configurable normally de-energised or energised
Display indications Green LED (power ON)
Red LED (TRIP)
Yellow LED (ALARM)
Communication port RS485 (optional)
Communication protocol Modbus a 4,8...115,2 kbauds
Mounting mode DIN rail 3 modules
Standards IEC/EN 61010
IEC/EN 61000-6-2EN
IEC/EN 61000-6-3
IEC/TR 60755
CEI EN 60947-2 Annex M
Weight 200g

Environment
IP degree of protection IP40 front
IP20 terminals
Relative humidity 5...90%
Operating temperature -10...+60 °C
Storage temperature -20...+80 °C

Options
Communication port RS485

 

 
 

 

杭州嘉瑞电气有限公司 JR Electric(China) Co.,Ltd. 地址:杭州凤起东路8号江能大厦505/529室  邮编(Zip):310020

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