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Product Details

For D.C. Drives and Instrumentation

  • The Field Failure Relay, when used in series with the field circuit, ensures that no power is supplied to the Armature unless Field circuit is complete.
  • Field Failure Relay, also known as Field Loss Relay protects the D.C. Shunt motor or main circuit under open field conditions.

 

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Field Failure Relay (FFR) / Field Loss Relay (FLR)
Current Ranges (A) Pick-up Current (+5%) Drop-out Current (<) Size (mm) out-line
0.1 to 0.5 80mA 50mA 95 X 35 IR-33
0.2 to 0.7 180mA 100mA 95 X 35 IR-33
0.7 to 1.0 600mA 350mA 95 X 35 IR-33
1.0 to 2.0 850mA 500mA 95 X 35 IR-33
2.0 to 4.0 1.8A 1.0 A 95 X 35 IR-33
4.0 to 6.0 3.6A 2.0 A 95 X 35 IR-33
6.0 to 10 5.0A 2.5 A 95 X 35 IR-33