Current Transformer purchasing

Modified on Wed, 14 Sep 2022 at 11:06 AM

Due to the dynamic nature of sites we no longer supply current transformers (CTs) with the Export Power Manager (EPM).

When selecting CTs consider the following:

1.Secondary current must be 1 or 5 amps (if voltage-based need to change)

2.Primary current > cable maximum current

3.Physical CT window size >  combined cable size

Please note on the CT ratio settings (on the EPM) you can only change the primary, therefore for a 100:5 CT you would set it to 20:1 (divide both sides by 5).

Please note:

The secondary has to be a current (a voltage output of 0.333V for example will not work). is a good link to purchase CT easily (many different options).

Good example:

A bad voltage example:

Was this article helpful?

That’s Great!

Thank you for your feedback

Sorry! We couldn't be helpful

Thank you for your feedback

Let us know how can we improve this article!

Select atleast one of the reasons

Feedback sent

We appreciate your effort and will try to fix the article