Protection Devices

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EARTH LEAKAGE RELAY - ELR 9611

  • Earth Leakage Current Monitoring In 1Ø - 2W, 3Ø-3W And 3Ø-4W System
  • Test Mode Available.
  • Auto/Manual Triping Reset Facility.
  • Test/Trip Reset Via Front Key.
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Motor Protection Device

  • User Selectable Trip Time.
  • Auto/Manual Reset Function.
  • True RMS Measurement.
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EARTH FAULT RELAY - EFR 9611

  • Earth Fault Current Monitoring In 1Ø - 2W, 3Ø-3W And 3Ø-4W System.
  • Test Mode Available.
  • Triping Reset Facility.
  • Test/Trip Reset Via Front Key.
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AMF Relay

  • Accuracy Class 1.0
  • Large 20 X 4 backlit LC Display
  • 12 LEDs for different indications
  • Low battery warning
  • Generator trial fail alarm
  • DG test mode
  • Under volt Indication
  • Displays Generator (DG) Run Hour and Maintenance Hour
  • Displays voltage, frequency and current.
  • CT Ratio field programmable
  • DG maintenance warning
  • Generator Over Current Alarm
  • DG fault alarm
  • Over volt indication
  • Automatic contactor control
  • Suitable for both 12V and 24V battery systems. Wide input (9-36VDC) DC-DC converter power supply.
Specification
Type Name Statistics
Input Three Phases and Neutral of a 3P4W
Voltage Direct Voltage Input: Up to 300V L-N
Burden: 0.5VA
Current Secondary Current Input : 5A or 1A (Site Selectable)
CT Ratio : Site Selectable
Range of Reading : 5 – 5000A
Burden : < 1.0VA
Overload : 5A CT = 6A RMS Continuous
1A CT = 1.2A RMS Continuous
Power Supply 9-36V DC
Output Relay Six Relays(NO)
Switching Voltage : Max. 250 VAC
Switching Current : 6 A (Resistive load)
Expected Mechanical Life : >1X10 switching operations
Expected Electrical Life : > 5X10 switching operations
Measurment True RMSBasicParameters Voltage (Volts L-N ) VL-N Accuracy : 1.0% of Reading
Current(Amps IR, IY, IB) Accuracy : 0.25 % of Reading
Line Frequency 45 to 55 Hz, Accuracy : 0.3% of Reading
Dimensions Bezel 144 X 144 mm
Panel Cutout 138 X 138 mm
Depth of installation 55 mm
Display 20 X 4 Backlit LCD
Operating temp 10°C to 50°C
Weight 0.58 Kgs (Approx.)
Operating Current Range 0.4% to 120% of CT primary
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