Hi. My panel has 4 mains going into 4 breakers connected as one. Would I install 4 main CTs for this setup? Would each CT go into an input on the iotawatt or would I join them (with a 3.5mm merge) before feeding as an input into the iotawatt?
If you can fit the pair from each 110v leg into a single CT, you will only need 2 for the mains.
As the 60 amp breaker appears to have no neutral, you only need 1 CT as the current must be equal in each leg (unless you have a ground fault on the circuit (which you really don’t want!)).
I have never seen a quadruple breaker @ 200 amps like this one before. What size is the panel?