Apologies in advance though can anyone advise the correct CT sensor needed for a typical Ring Circuit using 2.5mm T/E cabling in the UK ?
In my consumer unit, 2 x 2.5mm cables terminate in the same circuit breaker which is rated at 32A.
I can see that there is a 20A Max (6mm square cable opening) CT sensor option, and a larger 100A Max (13mm square cable opening) though i don’t know if the larger version would be too loose so to speak around both wires?
I did read somewhere on here that this shouldn’t be a problem though I just wanted to verify if this is the correct approach for obtaining power measurements on ring circuits ?
Any advice greatly appreciated.