ACREL 120 x 80II Current Transformer for Electrical Monitoring
ACREL 120 x 80II Current Transformer for Electrical Monitoring is a horizontal square-hole current transformer for AC current measurement in electrical systems. It has a 122 x 72 mm through opening, 160 x 193 x 60 mm overall dimensions and supports 1000-1250/5 A, 1500-2000/5 A and 2500-5000/5 A current ratios. The transformer is designed for through-busbar or cable installation and can be used with compatible electrical measuring equipment.
The ACREL 120 x 80II Current Transformer for Electrical Monitoring is part of Acrel's AKH-0.66/II series of horizontal square-hole current transformers. The design allows the primary conductor to pass directly through the transformer, making it suitable for electrical panels and assemblies where current needs to be measured without a conventional wound primary connection.
For the 120 x 80II configuration, Acrel specifies a 122 x 72 mm through opening and overall dimensions of 160 x 193 x 60 mm. The available ratios documented for this size are 1000-1250/5(1), 1500-2000/5(1) and 2500-5000/5(1), with a 5 A secondary rating indicated by the manufacturer's documentation.
How it works
- The primary busbar or cable passes through the transformer's square opening.
- The primary current produces a proportional current in the secondary winding through electromagnetic induction.
- The resulting secondary current is supplied to compatible measuring equipment for current measurement.
- The 120 x 80II version accommodates a 122 x 72 mm through opening and is specified for 120 x 10 mm busbar arrangements with 1-4 bars according to the manufacturer's table.
Why choose this product
- Designed specifically as a horizontal square-hole current transformer.
- Available with several primary-to-secondary current ratios for different measurement requirements.
- The through-hole arrangement accommodates busbars or multiple cables.
- Suitable for integration with compatible electrical measuring instruments.
- Compact dimensions relative to the available current range make it suitable for installation within electrical assemblies.
Benefits
- Provides proportional secondary current for electrical measurement.
- Allows current measurement through an existing busbar or cable arrangement.
- Multiple ratio options provide flexibility when selecting the CT for a particular primary current.
- The closed-core construction provides a fixed magnetic circuit for measurement applications.


