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AcuCT S125 product images
Front-left angled view of the AcuCT S125 Solid-Core CT
Front-right angled view of the AcuCT S125 Solid-Core CT
Front view of the AcuCT S125 Solid-Core CT
Front-right angled view of the AcuCT S125 Solid-Core CT
UL Listed
CE Mark
ROHS Compliant

Solid-Core Current Transformer

The AcuCT S125 delivers 0.2% measurement accuracy in accordance with IEC 61869 Class 0.2 standards. Available in rated current inputs range from 50A to 400A with multiple output options, the transformer is ideal for revenue-grade billing applications when paired with high-accuracy energy meters.

  • IEC 61869 Class 0.2 measurement accuracy.
  • Rated currents inputs: 50A, 100A, 200A, 300A, 400A.
  • Operating range: 5%–120% of rated current.
  • Multiple current outputs: 5A, 1A, 80mA, 100mA, 333mV.
  • UL Listed (UL 2808), CE, and RoHS certified for compliance and safety.


About AcuCT S125 Series

Typical Ratio Error in IEC 61869 Class 0.2

The AcuCT S125 current transformer typical error ratio performs within the maximum ratio error set by the IEC 61869-2 Class 0.2 accuracy standard across reference points 5%, 20%, 100% and 120% of rated current. Ideal for revenue-grade energy metering, load monitoring, power factor, and energy audits.

Typical Phase Displacement in IEC 61869 Class 0.2

Meeting IEC 61869-2 Class 0.2 phase displacement, the AcuCT S125 ensures precise energy, reactive power, and power factor measurements across all load levels. Reliable high accuracy tenant billing and load analysis for commercial and industrial applications for consistent performance under normal 50/60 Hz operation.

Typical ratio error curve for Class 0.2 AcuCT S125
Typical phase displacement curve for Class 0.2 AcuCT S125
Typical ratio error curve for Class 0.2 AcuCT S125
Typical phase displacement curve for Class 0.2 AcuCT S125

AcuCT S125 Models

AcuCT S125
Input Ratings
Output Ratings
Accuracy
Window Size
Front-right angled view of the AcuCT S125 Solid-Core CT 50A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
100A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
200A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
300A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
400A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
AcuCT S125
Front-right angled view of the AcuCT S125 Solid-Core CT
Input Ratings
Output Ratings
Accuracy
Window Size
50A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
100A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
200A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
300A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)
400A 5A, 1A, 80mA,
100mA, 333mV		 IEC 61869 0.2 Ø 32.0mm
(1.26”)