ACREL AKH-0.66S S-120ii Dual-Winding Current Transformer
ACREL AKH-0.66S S-120ii Dual-Winding Current Transformer is a dual-winding current transformer for high-current electrical measurement and monitoring. It supports primary current ratios from 2000 A to 5000 A and provides a conventional 5 A or 1 A measurement output together with a 0.02 A secondary output for remote monitoring applications. The S-120II configuration accommodates 120 x 10 mm busbars with up to three busbars, according to the manufacturer's specifications.
The ACREL AKH-0.66S S-120ii Dual-Winding Current Transformer is part of Acrel's AKH-0.66S series of dual-winding current transformers. The series provides two secondary windings: one for conventional current measurement and another for remote measurement applications. The manufacturer specifies the conventional secondary as 5 A or 1 A, while the second secondary is rated at 0.02 A.
For the S-120II configuration, the available primary current ratios are 2000/5(1)/0.02 A, 2500-3000/5(1)/0.02 A and 4000-5000/5(1)/0.02 A. The corresponding accuracy and burden combinations listed by Acrel vary according to the selected ratio.
How it works
- The primary conductor passes through the current transformer, creating a proportional secondary current.
- The first secondary winding provides a conventional 5 A or 1 A output for current measurement.
- The second secondary winding provides a 0.02 A output for remote monitoring and measurement equipment.
- The manufacturer states that the dual-winding design can be used with equipment such as the ARTU-M32 remote measurement unit and ARD3 motor protection device.
Why choose this product
- Provides two secondary outputs from one current transformer.
- Supports high primary current ratios up to the 5000 A range for the S-120II configuration.
- Allows conventional measurement and remote monitoring functions to be handled separately.
- Designed for installation around larger busbar arrangements.
- Suitable where current measurement needs to be integrated into electrical monitoring or motor protection systems.
Benefits
- Supports both local current measurement and remote monitoring.
- Reduces the need for separate current transformers for these two functions.
- Provides a range of primary current ratios for different electrical system requirements.
- The S-120II configuration supports up to three 120 x 10 mm busbars according to the manufacturer's selection table.