Accuenergy Introduces AcuCT S125 Series Solid-Core Current Transformers
Toronto, Ontario - October 2025 - Accuenergy Inc., a leading provider of advanced energy measurement and monitoring solutions, announces the release of the AcuCT S125 Series, a new solid-core current transformer line engineered to provide high-accuracy, stable current transformation for precise energy measurement in modern energy metering systems where accuracy is essential.
The AcuCT S125 Series meets the growing demand for reliable current sensors in modern electrical systems by delivering consistent measurement accuracy from 5% to 120% of rated current, in compliance with IEC 61869 Class 0.2 standards, supporting the stringent accuracy requirements of energy management applications.
Meeting the Needs of Tenant Submetering and Billing
Accurate tenant submetering allows building engineers and facility managers to allocate energy costs fairly and maintain consistent, verifiable energy consumption data.
In practice, installations typically do not operate at constant loads. These factors, along with temperature changes and limited panel space, make maintaining rated accuracy an ongoing challenge.
The AcuCT S125 Series delivers 0.2% accuracy and maintains stable performance across a wide current range.
Engineered for Accuracy and Reliability
Each AcuCT S125 model delivers IEC 61869 Class 0.2 accuracy and maintains ratio and phase stability from 5% to 120% of rated current. This wide linearity range ensures dependable results across diverse operating conditions.
Available in 50A to 400A primary ratings, the series offers five secondary output options: 5A, 1A, 80mA, 100mA, and 333mV, for direct compatibility with analog and digital metering devices.
A 32 mm (1.26 inch) inner window diameter accommodates standard conductors while maintaining a compact footprint for use in switchgear, distribution panels, and OEM assemblies.
The AcuCT S125 Series is UL 2808 Listed and CE and RoHS compliant, meeting international safety and performance standards.
Supporting Data Integrity and System Insight
Measurement precision at the sensing stage determines downstream data reliability.
The AcuCT S125 Series enables accurate energy audits, load studies, and diagnostics. High signal fidelity improves data quality for advanced monitoring.
Building the Foundation for Smarter Energy Measurement
The AcuCT S125 Series demonstrates Accuenergy’s commitment to advancing accuracy, interoperability, and transparency in electrical measurement.
As energy systems evolve, reliable current sensing remains essential for grid efficiency and safety.
By combining precision engineering with global compliance standards, Accuenergy continues to strengthen the measurement foundation for smarter, data-driven energy management.
For detailed specifications, visit www.accuenergy.com/acuct-s125.