ACREL AKH-0.66 P-220 x 50ii Protection Current Transformer
ACREL AKH-0.66 P-220 x 50ii Protection Current Transformer is a low-voltage protection current transformer designed for relay protection circuits and electrical protection systems. It provides a large 225 mm through aperture for busbar installation and supports rated current ratios from 1000/5 A to 4000-6300/5 A. The transformer is available with 5P protection accuracy classes and is suitable for detecting short-circuit and overload currents in low-voltage distribution systems.
The ACREL AKH-0.66 P-220 x 50ii Protection Current Transformer is part of the AKH-0.66/P range of protection current transformers. The series is designed for relay protection circuits and is used to detect short-circuit and overload currents within low-voltage protection systems.
The P-220 x 50II configuration provides a 225 mm through aperture. Acrel specifies installation using the D type arrangement, with provision for 220 x 10 mm busbars in configurations from 1 to 3 and 100 x 10 mm busbars in configurations from 1 to 6.
How it works
- The primary conductor or busbar passes through the current transformer aperture.
- The transformer converts the primary current into a corresponding secondary current for connection to a protection circuit.
- The selected current ratio and protection accuracy class determine the transformer characteristics for the particular protection application.
- The P-220 x 50II configuration supports multiple rated current ratios and 5P protection accuracy options.
Why choose this product
- Designed specifically for protection applications rather than general current measurement.
- Large 225 mm through aperture accommodates larger busbar arrangements.
- Multiple rated current ratios are available within the P-220 x 50II configuration.
- Provides 5P protection accuracy options with specified rated loads.
- Suitable for low-voltage protection systems where short-circuit and overload detection is required.
Benefits
- Supports relay protection system design.
- Allows selection according to the required primary current ratio.
- Provides a practical installation format for large busbar arrangements.
- Suitable for integration into low-voltage electrical protection equipment.

