ACD Machine Control Company Private Limited
ACD Machine Control Company Private Limited
Andheri East, Mumbai, Maharashtra
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Field Failure Relay

Pioneers in the industry, we offer field failure relay from India.

Field Failure Relay

Field Failure Relay
  • Field Failure Relay
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Approx. Price: Rs 450 / PieceGet Latest Price

Product Details:

Current0.1 to 0.5 A
Voltage400 V AC max
Continuous Current100% Of the Maximum Currnet Rating
ContactNormally Open (N/C AT Extra Price)
Power15 Watts max
Pick Up Current80 mA (+/- 5%)
Drop Out Currentless than 50 mA
Size95x35 mm

Field Failure Relay, also known as Field Loss Relay protects the D.C. Shunt wound motor or main circuit, under open field conditions, or in the absence of the field supply. Speed of the Shunt Wound D.C. Motor increases as the field supply is weakened. Theoretically motor runs at infinite speed if run without field supply. This break opens the armature coils from the commutator and totally damages the prime mover. 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 is a truly current operated device. As there is no iron core, there is no magnetic storage and actuating time is less than 1.2 mili-seconds. This is also used as safety guard in D.C. Clutches, Solenoids and Brakes.

Other Details:
  • No External Power Supply Needed.
  • Instantaneous Trip.

Technical Data:
Current Ranges (Amp.)Pick-Up Current (+/- 5%)Drop-Out Current (Less Than)Size (MM)
0.1 to 0.580 mA50 mA95x35
0.2 to 0.7180 mA100 mA95x35
0.7 to 1600 mA350 mA95x35
1 to 2850 mA500 mA95x35
2 to 41.8 Amp1.0 Amp95x35
4 to 63.6 Amp2.0 Amp95x35
6 to 105.0 Amp2.5 Amp95x35
10 to 158.0 Amp5.0 Amp125x60
15 to 2012.0 Amp6.0 Amp125x60
20 to 3018.0 Amp9.0 Amp125x60
30 to 6027.0 Amp13.0 Amp125x60
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Additional Information:

  • Item Code: FFR
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Prajakt Paralkar (Business Director)
E/6, Udyog Sadan, No. 2, MIDC, Andheri East Opposite ESIC Hospital
Mumbai- 400093, Maharashtra, India



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