Current Transformers

High Specification Line of AC Current Transformers. Custom built in-house, our high accuracy industrial split-core and flexible current transformers are among the industry's highest specification CT and offer exceptional value.

Current Transformer Comparison

AcuCT FlexAcuCT R SeriesAcuCT 5A SeriesAcuCT mV SeriesAcuCT Hinged SeriesHAB-16555 SeriesHAK SeriesShunt SeriesAcuCT S77AcuCT S113
AcuCT Flex Series of Rogowski Current Transformers
AcuCT R Split Core Current Transformer
General Purpose 5A Split Core CTGeneral Purpose 333mV CTCompact Branch Circuit CTGeneral Purpose 5A Split Core CTGeneral Purpose 333mV CTCompact Branch Circuit CTGeneral Purpose 5A Split Core CTGeneral Purpose 333mV CT
High Accuracy Flexible CTHighest Accuracy Split Core CTGeneral Purpose 5A Split Core CTGeneral Purpose 333mV CTCompact Branch Circuit CTGeneral Purpose 5A Split Core CTGeneral Purpose 333mV CTCompact Branch Circuit CTSolid Core CTSolid Core CT
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LocationPanel / Device / Circuit / BusPanel / Device / Circuit / BusPanel / Device / Circuit / BusPanel / Device / Circuit / BusBranch CircuitsBusbar/ CableBusbar/ CableBusbar/ CableBrach CircuitsPanel/ Cable/ Busbar
Form FactorFlexible Rope-Like CTSquare/Rectangle Press OpenSquare/Rectangle Removable FaceRectangle Removable FaceMini CT Hinged OpeningRectangle, removable faceRectangle, removable faceInline installationRoundRound
ApplicationHigh Accuracy; Power Quality; Tenant Metering; Tight SpacesHigh Accuracy; Power Quality; Tenant MeteringGeneral Use 333mVGeneral Use 5A/1ABranch Circuit MonitoringDC metering; Busbar; CableDC metering; CableDC metering; Busbar; CableRevenue Metering, branch circuit monitoringPanel and Switchgear Manufacturing
Input Rated Options1-50kA50A, 100A, 150A, 200A, 250A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1500A, 1600A, 2000A, 2500A, 3000A, 4000A, 5000A200A, 250A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1600A, 2000A, 2500A, 3000A, 4000A, 5000A100A, 200A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1500A, 2000A, 3000A, 5000A5A, 20A, 30A, 40A, 50A, 60A, 100A, 120A, 150A, 200A, 250A, 400A, 600A1000A, 2000A, 3000A, 4000A, 5000A50A, 100A, 200A, 400A, 600A, 1000A50A, 100A, 200A, 500A, 1000A, 2000A100A, 200A200A
Output Rated OptionsmV333mV, 5A, 1A, 80mA, 100mA, 200mA333mV5A, 1A333mV4-20mA, 0-5V4-20mA, 0-5V75mV80mA, 100mA5A
Measurement Range50000A5000A5000A5000A600A5000A1000A2000A200A200A
Accuracy0.50%0.50%0.50%0.50%0.50%1%1%0.5%0.15%1%
Min. Window Size (in)4.170.75 x 0.750.75 x 0.750.83 x 1.220.46.50 x 2.170.83n/a0.781.18
Max. Window Size (in)14.55 x 73 x 53.1 x 6.31.386.50 x 2.171.58n/a0.781.18
UL ListedUL List PendingUL List Pending
CE
UL Recognized
RoHS
AcuCT Flex Series

High Accurancy Flexible CT

AcuCT Flex Series of Rogowski Current Transformers
RIK 5A

5A Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
RIK mV

333mV Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
RIK 4-20 mA

4-20mA or 0-20mA Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
RIK 0-5V

0-5V / 0-10V Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
LocationPanel / Device / Circuit / BusPanel / Device / Circuit / BusPanel / Device / Circuit / BusPanel / Device / Circuit / BusPanel / Device / Circuit / Bus
Form FactorFlexible Rope-Like CTFlexible Rope-Like CTFlexible Rope-Like CTFlexible Rope-Like CTFlexible Rope-Like CT
ApplicationHigh Accurancy Power Quality Tenant Metering Tight SpacesHigh Accurancy Power Quality Tenant Metering Tight SpacesHigh Accurancy Power Quality Tenant Metering Tight SpacesHigh Accurancy Power Quality Tenant Metering Tight SpacesHigh Accurancy Power Quality Tenant Metering Tight Spaces
Input Rated Option1-50kA500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A
Output Rated OptionsmV0 – 6A RMS (0 – 5A RMS Nominal)0-333mVac4-20mAdc, 0-20mAdc0-5Vdc, 0-10Vdc
Measurement Range50,000A2.5A – 60000A2.5A – 60000A2.5A – 60000A2.5A – 60000A
Accuracy0.5%1%1%1%1%
Min. Window Size (in)4.174.174.174.174.17
Max. Window Size (in)14.514.514.514.514.5
UL Listed
CE
UL Recognized
RoHS
AcuCT R Series

Highest Accuracy Split Core CT

AcuCT R Split Core Current Transformer
AcuCT 5A Series

General Purpose 5A Split Core CT

General Purpose 5A Split Core CT
AcuCT mV Series

General Purpose 333mV CT

General Purpose 333mV CT
AcuCT Hinged Series

Compact Branch Circuit CT

Compact Branch Circuit CT
LocationPanel / Device / Circuit / BusPanel / Device / Circuit / BusPanel / Device / Circuit / BusBranch Circuits
Form FactorSquare/Rectangle Press OpenSquare/Rectangle Removable FaceRectangle Removable FaceMini CT Hinged Opening
ApplicationHigh Accurancy Power Quality Tenant MeteringGeneral Use 333mVGeneral Use 5A/1ABranch Circuit Monitoring
Input Rated Options50A, 100A, 150A, 200A, 250A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1500A, 1600A, 2000A, 2500A, 3000A, 4000A, 5000A200A, 250A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1600A, 2000A, 2500A, 3000A, 4000A, 5000A100A, 200A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1500A, 2000A, 3000A, 5000A5A, 20A, 30A, 40A, 50A, 60A, 100A, 120A, 150A, 200A, 250A, 400A, 600A
Output Rated Options333mV, 5A, 1A, 80mA, 100mA, 200mA333mV5A, 1A333mV
Measurement Range5,000A5000A5000A600A
Accuracy0.5%0.5%0.5%0.5%
Min. Window Size (in)0.75 x 0.750.75 x 0.750.83 x 1.220.4
Max. Window Size (in)5 x 73 x 53.1 x 6.31.38
UL Listed
CE
UL Recognized
RoHS
HAB-16555
General Purpose 5A Split Core CT
HAK Series
General Purpose 333mV CT
Shunt Series
Compact Branch Circuit CT
LocationBusbar, CableBusbar, CableBusbar, Cable
Form FactorRectangle, removable faceRectangle, removable faceInline installation
ApplicationDC metering; Busbar; CableDC metering; CableDC metering; Busbar; Cable
Input Rated Options1000A, 2000A, 3000A, 4000A, 5000A50A, 100A, 200A, 400A, 600A, 1000A50A, 100A, 200A, 500A, 1000A, 2000A
Output Rated Options4-20mA, 0-5V4-20mA, 0-5V75mV
Measurement Range5000A1000A2000A
Accuracy1%1%0.5%
Min. Window Size (in)6.50 x 2.170.83n/a
Max. Window Size (in)6.50 x 2.171.58n/a
CE
RoHS
AcuCT S77

Solid Core CT

General Purpose 5A Split Core CT
AcuCT S113

Solid Core CT

General Purpose 333mV CT
LocationBrach CircuitsPanel/Cable/Busbar
Form FactorRoundRound
ApplicationRevenue Metering, branch circuit monitoringPanel and Switchgear Manufacturing
Input Rated Options100A, 200A200A
Output Rated Options80mA, 100mA5A
Measurement Range200A200A
Accuracy0.15%1%
Min. Window Size (in)0.781.18
Max. Window Size (in)0.781.18
UL ListedUL List PendingUL List Pending
CE
AcuCT Flex Series

High Accurancy Flexible CT

AcuCT Flex Series of Rogowski Current Transformers
LocationPanel / Device / Circuit / Bus
Form FactorFlexible Rope-Like CT
ApplicationHigh Accurancy Power Quality Tenant Metering Tight Spaces
Input Rated Options1-50kA
Output Rated OptionsmV
Measurement Range50,000A
Accuracy0.5%
Min. Window Size (in)4.17
Max. Window Size (in)14.5
CE
UL Recognize
RoHS
RIK 5A

5A Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
LocationPanel / Device / Circuit / Bus
Form FactorFlexible Rope-Like CT
ApplicationHigh Accurancy Power Quality Tenant Metering Tight Spaces
Input Rated Options500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A
Output Rated Options0 – 6A RMS (0 – 5A RMS Nominal)
Measurement Range2.5A – 60000A
Accuracy1%
Min. Window Size (in)4.17
Max. Window Size (in)14.5
UL Listed
CE
RoHS
RIK mV

333mV Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
LocationPanel / Device / Circuit / Bus
Form FactorFlexible Rope-Like CT
ApplicationHigh Accurancy Power Quality Tenant Metering Tight Spaces
Input Rated Options500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A
Output Rated Options0-333mVac
Measurement Range2.5A – 60000A
Accuracy1%
Min. Window Size (in)4.17
Max. Window Size (in)14.5
UL Listed
CE
RoHS
RIK 4-20 mA

4-20mA or 0-20mA Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
LocationPanel / Device / Circuit / Bus
Form FactorFlexible Rope-Like CT
ApplicationHigh Accurancy Power Quality Tenant Metering Tight Spaces
Input Rated Options500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A
Output Rated Options4-20mAdc, 0-20mAdc
Measurement Range2.5A – 60000A
Accuracy1%
Min. Window Size (in)4.17
Max. Window Size (in)14.5
UL Listed
CE
RoHS
RIK 0-5V

0-5V / 0-10V Rogowski Integrator Kit

AcuCT Flex Series of Rogowski Current Transformers
LocationPanel / Device / Circuit / Bus
Form FactorFlexible Rope-Like CT
ApplicationHigh Accurancy Power Quality Tenant Metering Tight Spaces
Input Rated Options500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A
Output Rated Options0-5Vdc, 0-10Vdc
Measurement Range2.5A – 60000A
Accuracy1%
Min. Window Size (in)4.17
Max. Window Size (in)14.5
UL Listed
CE
RoHS

AcuCT R Series

Highest Accuracy Split Core CT

AcuCT R Split Core Current Transformer

LocationPanel / Device / Circuit / Bus
Form FactorSquare/Rectangle Press Open
ApplicationHigh Accurancy Power Quality Tenant Metering
Input Rated Options50A, 100A, 150A, 200A, 250A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1500A, 1600A, 2000A, 2500A, 3000A, 4000A, 5000A
Output Rated Options333mV, 5A, 1A, 80mA, 100mA, 200mA
Measurement Range5,000A
Accuracy0.5%
Min. Window Size (in)0.75 x 0.75
Max. Window Size (in)5 x 7
UL List
CE
RoHS

AcuCT 5A Series

General Purpose 5A Split Core CT

General Purpose 5A Split Core CT

LocationPanel / Device / Circuit / Bus
Form FactorSquare/Rectangle Removable Face
ApplicationGeneral Use 333mV
Input Rated Options200A, 250A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1600A, 2000A, 2500A, 3000A, 4000A, 5000A
Output Rated Options333mV
Measurement Range5000A
Accuracy0.5%
Min. Window Size (in)0.75 x 0.75
Max. Window Size (in)3 x 5
CE
UL Recognize
RoHS

AcuCT mV Series

General Purpose 333mV CT

General Purpose 333mV CT

LocationPanel / Device / Circuit / Bus
Form FactorRectangle Removable Face
ApplicationGeneral Use 5A/1A
Input Rated Options100A, 200A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1500A, 2000A, 3000A, 5000A
Output Rated Options5A, 1A
Measurement Range5000A
Accuracy0.5%
Min. Window Size (in)0.83 x 1.22
Max. Window Size (in)3.1 x 6.3
CE
UL Recognize
RoHS

AcuCT Hinged Series

Compact Branch Circuit CT

Compact Branch Circuit CT

LocationBranch Circuits
Form FactorMini CT Hinged Opening
ApplicationBranch Circuit Monitoring
Input Rated Options5A, 20A, 30A, 40A, 50A, 60A, 100A, 120A, 150A, 200A, 250A, 400A, 600A
Output Rated Options333mV
Measurement Range600A
Accuracy0.5%
Min. Window Size (in)0.4
Max. Window Size (in)1.38
CE
UL Recognize
RoHS

HAB-16555

General Purpose 5A Split Core CT
LocationBusbar, Cable
Form FactorRectangle, removable face
ApplicationDC metering; Busbar; Cable
Input Rated Options1000A, 2000A, 3000A, 4000A, 5000A
Output Rated Options4-20mA, 0-5V
Measurement Range5000A
Accuracy1%
Min. Window Size (in)6.50 x 2.17
Max. Window Size (in)6.50 x 2.17
CE
RoHS

HAK Series

General Purpose 333mV CT
LocationBusbar, Cable
Form FactorRectangle, removable face
ApplicationDC metering; Cable
Input Rated Options50A, 100A, 200A, 400A, 600A, 1000A
Output Rated Options4-20mA, 0-5V
Measurement Range1000A
Accuracy1%
Min. Window Size (in)0.83
Max. Window Size (in)1.58
CE
RoHS

Shunt Series

Compact Branch Circuit CT
LocationBusbar, Cable
Form FactorInline installation
ApplicationDC metering; Busbar; Cable
Input Rated Options50A, 100A, 200A, 500A, 1000A, 2000A
Output Rated Options75mV
Measurement Range2000A
Accuracy0.5%
Min. Window Size (in)n/a
Max. Window Size (in)n/a
CE
RoHS

AcuCT S77

Solid Core CT

General Purpose 5A Split Core CT

LocationBrach Circuits
Form FactorRound
ApplicationRevenue Metering, branch circuit monitoring
Input Rated Options100A, 200A
Output Rated Options80mA, 100mA
Measurement Range200A
Accuracy0.15%
Min. Window Size (in)0.78
Max. Window Size (in)0.78
UL ListedUL List Pending
CE
RoHS

AcuCT S113

Solid Core CT

General Purpose 333mV CT

LocationPanel/Cable/Busbar
Form FactorRound
ApplicationPanel and Switchgear Manufacturing
Input Rated Options200A
Output Rated Options5A
Measurement Range200A
Accuracy1%
Min. Window Size (in)1.18
Max. Window Size (in)1.18
UL ListedUL List Pending
CE
RoHS