Accuenergy RIK 333mV Rogowski Integrator Kit and  Rogowski Coil Flexible Current Transformers
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333mV Flexible Current TranformerRIK 333mV Rogowski Integrator Kit

The Accuenergy 333mV Rogowski Integrator Kit (RIK) provides users with an easy-to-install, plug- n-play solution to be used with any power meters or equipment with a 333mV nominal current transformer input. The 333mV Rogowski Integrator will allow the installation of Rogowski coil CTs in a variety of applications where space constraints may limit the use of other current transformers

The 333mV RIK kit is designed with three independent channels of 0-333mV output integrator and includes with it three Accuenergy Rogowski coil current sensors.

Included in the kit are one or three Rogowski coils customized for each order.

Download Datasheet
    • Flexible rope-like current sensor, designed to easily fit into panels or busbars where space may be limited
    • 0-333mV rated output that works with any power meter or equipment with 333mV nominal current transformer input
    • Current sensing range from 2.5A to 50,000A to fit all systems
    • Field-configurable CT ratios: 500A, 1kA, 2.5kA, 5kA, 10kA, 25kA, 50kA
    • Individual CT ratios can be configured for each channel. Works in any single phase application with different current ratings
    • Works in both 50Hz and 60Hz systems



RIK 333mV Series Models

The Rogowski Integrator Kit comes with a choice of optional current transformer sizes.


Rogowski CT SpecificationsRIK16-333mVRIK24-333mVRIK36-333mVRIK47-333mV
Window Diameter Size in (mm)4.17 (106)7.01(178)10.67 (271)14.53 (369)
Length in (mm)15.75 (400)23.62 (600)35.43 (900)47.24 (1200)
Current Measurement Range2.5A - 60000A
Output0-333mVac
Sensing Range500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A (User Selectable)
Measurement Channels1 or 3 Channel
Frequency45Hz to 65Hz
Accuracy±1% Full Scale Error
Channel Cross Talk< -60dB
Maximum Operating Temperature55°C (131°F)

Highly Configurable CT Ratios

7 Current Transformer Input Ratios & 3 Individual Output Channels.



The Rogowski Integrator Kit model has seven configurable field CT ratios for each each output channel depending on your application requirements.

Current Range Settings

Primary Input (ARMS)Sensing Range (A)OutputCT Ratio
5002.5 to 600333mV @ 500A500:333
10005 to 1200333mV @ 1000A1000:333
250012.5 to 3000333mV @ 2500A2500:333
500025 to 6000333mV @ 5000A5000:333
1000050 to 12000333mV @ 10000A10000:333
25000125 to 30000333mV @ 25000A25000:333
50000250 to 60000333mV @ 50000A50000:333

RIK 333mV Additional Details



Rogowski Coil Benefits

Rogowski Coils are high-specification flexible current transformers that are ideal for use when space is limited. The flexible form factor of a Rogowski Coil means they easily fit into tight panels and come in a range of sizes to suit most installations.

Like standard split core transformers, Rogowski coils can be easily integrated into existing panels without having to cut any lines.

Items Included In The Kit

Each Rogowski Integrator Kit includes:

  • Single or three channel integrator
  • Three AcuCT Flex current sensors
  • Available in an array of sizes from 16” to 47”.
  • 100-240Vac Din-rail mount power supply
  • Choice of DIN rail or surface mount
  • Each part is highly configurable to the appropriate application.