I want to measure 300A - can the meter do it and is there a flexible CT. my conductor size is bigger that the std CT diameter

Hi:

The maximum CT is 500A (WEM3080T-500)

https://store.iammeter.com/wem3080t-500a

The diameter of the 500A CT is 35mm.

We will provide a new product that supports standard 5A CT input in near future.

This new product will support replacing the standard 5A output CT from the customer side.