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AcuCT S77 product images.
AcuCT S77 - Left view.
AcuCT S77 - Right view.
AcuCT S77 - Front view.
AcuCT S77 - Top view.
UL Listed
CE Mark
ROHS Compliant
Measurement Canada Approved

High Accuracy Solid-Core Current Transformer

The AcuCT S77 is a Measurement Canada approved solid-core current transformer that features industry-leading 0.15% accuracy. Compact and cost-effective, the AcuCT S77 is specifically designed for power and energy meter installations that require exceptionally accurate signal transformation, such as revenue or billing applications. The rugged solid-core design ensures reliable performance, even within harsh environments.

  • Accuracy class: 0.15%
  • Current input: 100A or 200A
  • Choose from 80mA or 100mA rated output
  • Solid core design for superior accuracy & performance
  • Measurement Canada Approved
  • UL2808 Listed, 61010-1, & CSA 22.2"

About AcuCT S77 Series

What is a solid-core current transformer?

A solid-core current transformer is designed with a permanent closed core. Sometimes called a "toroidal" or "donut" current transformer, the solid-core design makes this type of current transformer extremely accurate and they are often selected for revenue-grade applications, particularly for installations in new construction. Because the core is sealed against dust or debris, durable solid-core CTs can often out-perform other sensors in challenging settings.

AcuCT S77 solid-core CT.

AcuCT S77 Models

AcuCT-S77
Input Ratings
Output Ratings
Accuracy
Window Size
Lead
Certification
AcuCT S77 solid-core CT. 100A 80mA, 100mA 0.15% 0.77" 1 feet UL Listed
200A 80mA, 100mA 0.15% 0.77" 1 feet UL Listed
AcuCT-S77
AcuCT S77 solid-core CT.
Input Ratings
Output Ratings
Accuracy
Window Size
Lead
Certification
100A 80mA, 100mA 0.15% 0.77" 1 feet UL Listed
200A 80mA, 100mA 0.15% 0.77" 1 feet UL Listed