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JRFS-Y Micro-Accuracy Rogowski Coil by J&D

Manufacturer: J&D
Availability: Please select required attribute(s)
Minimum Order Quantity is 1
Products specifications
Attribute nameAttribute value
Shape/StyleFlexible/Rope Coil
Input TypeAC
Input Rating (A)500, 1000, 2000
Ratio48mV/500A@50Hz, 57.6mV/500A@60Hz, 50mV/500A@50Hz, 60mV/500A@60Hz, 104mV/kA@50Hz, 124.8mV/kA@60Hz, 208mV/2kA@50Hz
Opening (greatest dim.)1.38 in (35 mm), 2.2 in (55 mm), 3.1 in (80 mm), 4.1 in (105 mm)
Error %< 1


The JRFS-xxxY series of Rogowski coils (with or without optional integrator) feature tight windings that result in a very thin coil

  • This coil is very effective and accurate for lower AC amperage
  • These provide minimal error that is a result of positional accuracy
  • This series is great for use in small areas where traditional Rogowski coils may be difficult to fit
  • They also work well where the positional accuracy could be compromised due to a need to install the coils at non-traditional angles
  • Applications
    • Very high current monitoring
    • DC ripple measurement
    • Harmonics and transients monitoring
    • Power monitoring & control systems
    • Applicable in electronic watt-hour meter
  • Features
    • No danger from open-circuited secondary
    • High secondary output voltage & precise linearity error
    • Isolated plastic case recognized according to UL94-V0
    • Very low position sensitivity
Part NoOpening (mm) Input Rating (A)Ratio

48mV AC/500A @ 50Hz

57.6mV AC/500A @60Hz


50mV AC/500A @ 50Hz

60mV AC/500A @ 60Hz


104mV AC/1000A @ 50Hz

124.8mV AC/1000A @ 60Hz


208mV AC/2000A @ 50Hz

249.6mV AC/2000 A @ 60Hz