Internal power meter / transformer

The KOSTAL Smart Energy Meter can directly measure up to 63A per external wire. External transformers are used for higher currents. If your device is connected to a transformer, this can be set here.

INFO

You will find a description of the electrical connection for transformers with an indirect measurement in the KOSTAL Smart Energy Meter's installation manual.

If transformers are being used, the following requirements are recommended. A list of recommended transformers can be found in the download area for the product.

• 100 A primary
• 5 A secondary
• Accuracy class 1

To do this, activate “Use current transformer” and set the transformer ratio. Common transformer ratios are provided in the drop-down list. If the ratio is not included in the list, click on “Other” and enter it manually. The primary current may be in a range of 1 to 5000 and the secondary current in a range between 1 A and 5 A.