Intelligent Motor Protection Relay

• Ground fault protection for both zero current/residual current
• Support rated current 0.12~100A without external current transformer
• Definite/inverse time selection and diverse protection factors
• Basic application of ground fault/instance protection
• Separation of the display part with the use of cables
• MODBUS communication and 4~20mA DC output




  • Comprehensive digital motor protection relay with the MCU (Microprocessor Control Unit)
  • Applicable to inverter circuits
  • Storage of causes of failure
  • One-body type and separate body type
  • Communication support type
  • Various reset functions
  • Date and total operating time setup
  • Password
  • Total operating time and operating time setting
  • Quick setup
  • Wide setting of ground fault current sensitivity 30mA~25A
  • Thermal inverse time, inverse time, and definite time modes
  • 3-Phase Digital Ampere-Meter
  • Wide current setting range: 0.125~100A for one model


Rating Specification
Protection Over current, Lock/Stall, Phase failure, Phase unbalance, Reverse phase,
Under current, Ground fault, Short circuit
Connection method Extention type
Operating time characteristics Heat accumulation inverse time / inverse time / definite time
Rated current 0.5~10A/5~100A (Separate)
Display 4 digit, 7-Segment
Operating power AC/DC 85~245V (50Hz/60Hz)
Reset method Automatic 1~20min
Manual / Electrical On/Off selectable
Installation / installation method Display can be installed separately, 35mm DIN rail / Screw installation
Tolerance Current ±5%
Time ±5%
4~20mA output ±5%
Time setting Startup delay 1~200sec
Operation delay 1~60sec
Aux. contact Composition 3-SPST(Power supply 1a1b, instantaneous operation 1a)
Capacity 3A/250VAC Resistive Load
Contact minimum load 100mA / 5VDC
ZCT Input 200mA/100mV(Exclusive ZCT)
Environment Operation -10℃ ~ 55℃
Storage -20℃ ~ 70℃
Relative humidity Below 80% RH (No freezing)
Insulation resistance 100Mohm/500VDC
Fast transient 2kV/1Min
Power consumption Below 2W
Certification CE


625 Heathrow Dr.
Lincolnshire, IL. 60069, USA

Sales: (800) 891-2941
Tech Support: (800) 891-2941


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