FQ-RCT02 Flexible Rogowski coil 6000A AC current sensor

rogowski coil current sensor

The FQ-RCT02 flexible current sensor is an AC current sensor composed of a flexible Rogowski coil. The flexible current sensor permits measurements on conductors where standard clamp-on probes cannot be used. In particular, it can be installed in tight spaces, around cable bundles, around wide or large bus bars, or even wrapped around irregular shapes. It is suitable for large current measuring. They combine the benefits of a thin, flexible, clip-around Rogowski (sensor) coil with a signal conditioner providing accurate, true RMS measurement, of voltage output 100mV/kA.



Models range from 1A to 100,000Arms with an accuracy of 1% of reading. Rated EN 61010, 600V CAT IV, 1000V CAT III. Low cost AC current measurement probe designed to plug into digital multimeters, oscilloscopes, power quality analysis and power or harmonic meters. The length of the rogowski coil current sensor can be selected from 40cm to 100cm. Fits around large or small conductors. Capable of getting into tight or difficult spaces. Ideal for measuring AC current in a group of conductors.


  • Oscilloscope;
  • Power recorders;
  • Power and harmonic meters;
  • Power quality analyzer;
  • Energy meter calibrator;
  • Measuring around cable bundles;
  • Power load monitoring;
  • Data logging/recording;
  • Power monitoring device;
  • Energy sub-meters;
  • Power quality meter;
  • Lightning current measurement;
  • Power meter;
  • Multimeter;


  • Excellent linearity 0.2% for current measurement;
  • Measurement range of 1A to 100KA AC;
  • Frequency 0.1Hz-10MHz Bandwidth;
  • Low phase shift for power measurement;
  • Holding wire diameter: φ305mm/190mm/120mm;
  • High times harmonic measurement;
  • 100mV/kA or 85mV/kA or 50mV/kA output signal;
  • Improved ergonomic design & easy operation;
  • High permeability magnetic material core;
  • Conforms to EN 61010, 1000V CAT III;
  • Designed for DMMs, oscilloscopes, recorders, power and harmonic meters;
  • CNAS, UL, CE mark;

General data

  • Ambient operating temperature: -20~+70°C
  • Ambient storage temperature: -25~+75°C
  • Standards safety:IEC 61010-1:2001, 600 V CAT III


Electrical parameters
Model FQ-RCT02-120 FQ-RCT02-190 FQ-RCT02-305
Current range 1A - 100kA
Frequency 10Hz - 20kHz
Output voltage Rated current 1000A/2000A 2000A/3000A 3000A/6000A
50Hz 100mV/200mV AC 200mV/300mV AC 300mV/600mV AC
Max output 10kA or 100kA
Accuracy <1% @25°C (45-65Hz)
Phase error <60' @25°C (45-65Hz)
Output sensitivity 50mV/kA, 85mV/kA, 100mV/kA (50Hz)
Coil section diameter 8mm
Output sensitivity ±2% Max (No Calibration)
±0.5% @25°C (With Calibration)
Linearity error ±0.2% RD
Position Sensitivity ±1%
External Influence ±1% Max
Bandwidth 0.1Hz - 10MHz(-3dB)
Power Supply /
Lead length 2.5m
Standard EN 61010-1, EN 61010-2-032, EN 61010-2-031
IEC60044-1, & IEC61869-2, 1000V CAT III
Weight 150g - 230g
Degree of protection IP67
Operation temperature -30°C to +80°C
Storage temperature -40°C to +90°C
Notes: Can be customized current probe according to user requirements!


Dimensions(mm) FQ-RCT02-120 FQ-RCT02-190 FQ-RCT02-305
Window A 120 190 305
Coil OD B 145 205 335
Coil Length C 400 600 1000
Output connection 1. UL2586-ESB 2x24AWG L=150cm (as required)
2. Coax terminated with safety male BNC connector L=250cm (as required)
3. UL2586-ESB 2x24AWG L=150cm (as required) with integrator

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