Schneider Korea Sanhe ELR-30RM7Q grounding relay protector â– MCU-based intensive design â– Grounding protection for electric motors and distribution systems Schneider Korea 3 and ELR-30RM7Q grounding relay protectors ZHITONG PIPE VALVE TECHNOLOGY CO.,LTD , https://www.ztongvalve.com
Sanhe EOCR Co., Ltd. is Korea's largest manufacturer of motor protectors. The company was founded in 1981 by Dr. Jin Renxi (CEO of Schneider Electric Group Korea).
In 2001, in order to develop the company into a global, strategic enterprise, he joined the Schneider Electric Group of France.
EOCR's main products are electronic motor protection relays, electronic overcurrent relays, electronic undercurrent relays, electronic undervoltage relays, other protection and monitoring devices, and current transformers.
â– MCU-based intensive design
â– Ground protection for electric motors and distribution systems
â– Using zero sequence current detection
â– The TEST button provides a manual self-test function
â– Ground current and trip delay time are adjusted separately
â– A green LED indicates that power has been established and a red LED indicates that it has tripped
Schneider Korea Sanhe ELR technical conditions
Current setting
0.03~3A (0.03, 0.07, 0.1, 0.1, 0.3, 0.5, 1, 1.5, 2, 2.5 and 3A)
time setting
0.2~2.0 seconds (0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8 and 2.0 seconds)
Working characteristics
Definite time limit
Current signal
ZCT (Zero Sequence Current Transformer) - Zero Sequence Current Detection
Control voltage
240VAC±10%
frequency
50/60HZ
Power supply error
±5%
Time error
±5%
Contact output
5A/250VAC resistance
1-SPPT/Normal is not motivated
Rated insulation voltage
600VAC, 50/60HZ
Mechanical life
10000000 actions
Electrical life
100,000 actions
Ambient temperature
-20~60°C
environment humidity
10~85% no condensation
Dielectric strength
Enclosure - line 2kv, 50/60HZ, 1 minute
Terminal - terminal 1kv, 50/60HZ, 1 minute
Line-line 2kv, 50/60HZ, 1 minute
Electrostatic discharge
IEC6100-4-2-3
Arc spark
IEC6100-4-4-3
surge
IEC6100-4-5-3
Voltage drop and interruption
IEC6100-4-11
installation
Panel embedded installation
Schneider Korea 3 and ELR reference map / wiring diagram / installation dimension drawing 
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Schneider South Korea three and ELR-30RM7Q grounding relay protector