ACREL AKH-0.66 130 x 80iii-N AC Current Transformer

The ACREL AKH-0.66 AKH-0.66 130 x 80iii-N AC Current Transformer is a range of vertical square hole current transformers intended for low voltage electrical measurement. The design allows busbars to pass through the transformer, with the series supporting one to three busbars depending on the selected specification. Acrel states that the transformers can be used for power supply metering and can be matched with current relays for protection applications.

The AKH-0.66 130III is specified for primary current ratios of 2000 A to 5000 A with a 5 A secondary current in the manufacturer's published III series table. It has an outline size of 125 mm by 224 mm by 55 mm and a through opening of 52 mm by 132 mm.

The AKH-0.66 130 x 80III-N is listed separately on Acrel's current product page. Its published dimensions are 180 mm by 252 mm by 80 mm, with a through opening of 135 mm by 80 mm. The official page does not provide a separate current ratio table for this specific 130 x 80III-N variant, so the current ratio should be confirmed with Acrel when ordering.

How it works

• The primary conductor or busbar passes through the transformer opening.
• The current transformer converts the primary AC current into a proportional secondary current.
• The secondary signal can be connected to suitable measuring or monitoring equipment.
• The transformer provides electrical isolation between the primary circuit and the measurement circuit.

Why choose this product

• Suitable for AC current measurement in low voltage power distribution systems.
• The vertical square hole construction accommodates busbar installations.
• The 130III provides higher primary current ratios for larger electrical circuits.
• Different physical sizes within the III series allow selection according to the available busbar arrangement.
• Acrel provides published dimensional and electrical information for the AKH-0.66 series to assist with selection and installation.

Benefits

• Provides a proportional current signal for electrical measurement.
• Supports integration with suitable energy meters and measuring instruments.
• Provides a practical method of monitoring high primary currents without directly connecting measurement equipment to the primary circuit.
• The larger 130 x 80III-N format provides a substantially larger through opening than the standard 130III model.