Multiple wires through CT clamp

Hi.

My house just got upgraded today to 3 phase (Australia).

Due to current setup, and available space i will have to run multiple wires through a CT clamp if I want to measure the usage per phase.

All wires per CT clamp will of course be on the same phase, and the current always be in the same direction for all.

Will that be problem?
TIA

Shouldn’t be. Sounds like you know the ground rules. The devil is in the details, so just make sure to keep the phases separate.

Reason it’s a pain is that i don’t want to measure at the main. I want to measure my usage outside the solar feed (2 systems)

I could probably do it with an extra two clamps, and set the iota to add the two clamps together)
But it’s too late now. And space woupd be an issue to fit two more clamps.