ACREL Closed Type Current Transformer
ACREL Closed Type Current Transformers are designed to convert higher primary currents into a low-level secondary signal for compatible electrical measurement equipment. The range includes the AKH-0.66/W-12NY at 100A/50mA and AKH-0.66/W-45NY versions at 400A/50mA and 600A/50mA. The transformers use a closed construction and crystal head/RJ interface, with 0.2 class accuracy specified by Acrel.
TheACREL Closed Type Current Transformer are closed-type current transformers intended for use with compatible electrical measurement and energy monitoring systems.
The transformer provides a lower secondary current signal corresponding to the current flowing through the primary conductor. This signal can then be used by compatible meters or monitoring equipment for current measurement and related electrical monitoring functions.
Acrel lists the AKH-0.66/W-12NY with a 100A/50mA ratio. The AKH-0.66/W-45NY is listed in 400A/50mA and 600A/50mA versions. The published specifications also identify a closed installation type, crystal head/RJ interface, 0.2 class accuracy and a 1 + 0.2 metre line length for these listed configurations.
How it works
- The primary conductor carries the measured electrical current through the transformer.
- The current transformer produces a proportional secondary current signal.
- The 50 mA secondary output can be connected to compatible Acrel measurement equipment through the specified interface.
- The connected meter or monitoring device uses this signal to determine the measured current and associated electrical parameters.
Why choose this product
- Provides a defined secondary current signal for compatible monitoring equipment.
- Closed-type construction allows the transformer to be installed around the applicable conductor.
- Available in different current ratios to suit the measurement range required.
- 0.2 class accuracy is specified for the listed configurations.
- The crystal head/RJ interface is suited to compatible Acrel metering systems.
Benefits
- Supports current measurement in energy monitoring installations.
- Provides a compact sensing component for compatible multi-circuit metering systems.
- Different primary current ratings allow selection according to the monitored circuit.
- A 50 mA secondary output provides compatibility with equipment designed for this CT input.

