ACREL AKH-0.66 SM-50ii Dual Winding Current Transformer
ACREL AKH-0.66 SM-50ii Dual Winding Current Transformer is a closed type AC current transformer for electrical current measurement through busbars or cables. Its 50II construction provides a 52 mm by 32 mm through opening, with current ratio and accuracy options available according to the manufacturer's specifications. It is designed for use with electrical measuring instruments and electrical equipment.
The ACREL AKH-0.66 SM-50ii Dual Winding Current Transformer is part of the AKH-0.66 II series of closed type current transformers. It is designed to transform higher AC current into a smaller secondary current suitable for connection to electrical measuring instruments and related equipment.
The horizontal square-hole design allows the primary conductor to pass directly through the transformer. For the 50II specification, the through opening is 52 mm x 32 mm, allowing the unit to be matched with compatible busbars or cable arrangements.
How it works
- The primary conductor passes through the current transformer opening.
- AC current flowing through the conductor produces a magnetic field in the transformer core.
- The transformer converts the primary current to a corresponding secondary current according to the selected current ratio.
- The secondary output can be connected to compatible electrical measuring equipment.
Why choose this product
- Closed type construction for fixed electrical measurement installations.
- Horizontal square-hole configuration suitable for compatible busbar and cable arrangements.
- Multiple current ratio options are documented by Acrel for the 50II specification.
- Compact dimensions for integration into electrical equipment and distribution assemblies.
- Manufactured as part of Acrel's AKH-0.66 II series of measurement current transformers.
Benefits
The transformer provides a practical method of interfacing higher AC currents with compatible measuring equipment. Its through-hole configuration also allows the primary conductor arrangement to be accommodated without requiring the conductor to terminate directly on the transformer.

