RC-600: High Accuracy Flexible Rogowski Coil CTs


  • High accuracy, ± 0.5% ratio error, Phase shift error < 0.3%
  • High linearity, large measurement range capacity (6000A or greater)
  • High sensitivity, accuracy down to 50A
  • Next Generation Design has less positional error
  • High immunity to EMI and magnetic fields
  • Ideal for use with WattsOn-Mark II Advanced Energy Meter
  • Ideal for use with i-Spy Advanced 3-Phase AC Current Monitor

Product Description

The RC-600 is a flexible, air-core current sensor which operates on the Rogowski Coil principle. The RC-600 is designed and approved to be installed on insulated and/or bare conductors (bus bars).

The unique shielding system and precision windings minimize the positioning error and practically eliminate the influence of external magnetic fields.

The RC-600 can be used directly with the WattsOn-Mark II Precision Energy Meters without an integrator or additional power supply. This offers accurate measurements in large power systems where conventional iron-core CTs may be hard to install.

Each RC-600 coil has a unique serial number and is factory calibrated. Three identical coils are shipped with one meter for best accuracy.

Installation Examples

The flexible RC-600 may be wrapped around the primary conductor multiple times. This non-conventional installation allows for smaller space (tighter fit) around the conductor, better accuracy and higher output level.


Coil Length600 mm (23.6"); allows for a 7.5" diameter wire window
Coil DiameterCoil diameter 8.3 mm (0.32")
Output100mV/1000A (50Hz)
120mV/1000A (60Hz)
Output WaveformAC voltage proportional to derivative of input current
Requires integrator for measurement of AC current (built into WattsOn-Mark II)
Outer sheathThermoplastic polyurethane UL94-V0
LeadsShielded pair AWG22, 3 m (9ft 8") AWM style 21223, 1000V, 80°C
Insulation Class1000V; 50-60 Hz, Cat III, 600V, 50-60Hz, CAT IV
Test Voltage7400 Vrms for 1 min
Maximum measured current100,000A @50Hz
Ratio error<0.5% of reading
Phase shift error< 0.3%
Linearity0.1 %
Positioning errorOne Loop: < 1% of reading with a 15 mm wire
Two loops: less than 0.3%
CertificationUL Recognized (Canada/USA)


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