Rogowski Coils Flexible
Rogowski coils are used for measuring AC or high speed current pulses. It consists of a helical coil of copper wire with the lead from one end returning through the centre of the coil to the other end, so that both terminals are at the same end of the coil. The whole assembly is then wrapped around the conductor whose current is to be measured. There is no metal (iron) core, hence the sensor is flexible . Since the induced voltage in the coil is proportional to the rate of change of current in the conductor, the output of the Rogowski coil is  connected to an electrical (or electronic) circuit to provide an output signal that is proportional to the current.( 4 -20mA)

Rogowski Coils Flexible

Product No.Ipn RMS(A)Bandwidth-3dB(kHz)Accuracy %Ip Crest FactorSupply Voltage (V)ID (mm)Out Put

Rogowski Current Sensor

400 A



4.0 Max

10 to 30


4-20 mA