ACREL AKH-0.66S S-100ii Dual-Winding Current Transformer
ACREL AKH-0.66S S-100ii Dual-Winding Current Transformer s a monitoring current transformer for measuring and monitoring electrical current in power distribution systems. It accommodates 100 x 10 mm busbars and supports primary current ratios from 1000/5 A to 4000/5 A, with the available accuracy and rated load depending on the selected ratio.
The ACREL AKH-0.66S S-100ii Dual-Winding Current Transformer is part of Acrel's AKH-0.66S series of current transformers for electrical monitoring applications. The transformer operates by passing a primary conductor or busbar through its opening and providing a reduced secondary current for connection to compatible monitoring or measurement equipment.
For the S-100II model, Acrel specifies a 100 x 10 mm busbar arrangement with one to three busbars. The model is available with primary current ratios from 1000/5 A through to 4000/5 A. The specified accuracy and rated load vary according to the selected current ratio.
How it works
- The primary current passes through the current transformer.
- The transformer converts the primary current into a lower secondary current suitable for measurement.
- The secondary output can be connected to compatible electrical monitoring or measurement equipment.
- The selected current ratio determines the relationship between the primary and secondary current.
Why choose this product
- Designed specifically for electrical current monitoring applications.
- Provides multiple high-current ratio options within the S-100II model.
- Supports installation with 100 x 10 mm busbars.
- Allows the current transformer to be selected according to the required primary current and accuracy requirements.
- Suitable for use as part of electrical measurement and monitoring systems.
Benefits
- Enables high-current circuits to be monitored using compatible measurement equipment.
- Provides a practical method of current measurement around busbar installations.
- Multiple ratio options allow the transformer to be matched to different current levels.
- The compact transformer arrangement can be incorporated into suitable electrical distribution equipment.

