So my dryer circuit 240V/30A currently has 2x50A CTs wired to 2 inputs. I would like to free up and input by using a headphone splitter. No wire slack to loop one wire back through. I also really would rather not shoe horn 2x100A CTs in that location, already have 2x100A CTs on the breaker just next to it.
The dryer combined current on the 2 CTs maxes out at 40A. Obviously if we replace the dryer that could cause issues.
If you graph the two inputs during a cycle, do they match? If they do, everything in your dryer uses the full 240v instead of some on 120, some in 240. In that case, you could use one CT on a single conductor and enable the ‘double’ setting.
If not, two CTs with a headphone splitter into one input should be just fine.
The motor uses 120V and the heater elements are on 240V.
Concern with the splitter is technically I would need to move to 100A CTs to do that route just curious how much an issue uses 50A on a 240V/30A circuit would be when the combined current could reach 40A.
Right just making sure it is OKAY to combine the 2x50A on a single input using a splitter.
From the docs:“Two individual CTs can also be combined with a common headphone splitter and fed into a single IotaWatt input. When combining this way, both CTs must be the same model with an individual capacity sufficient to measure the combined capacity of the two circuit breakers.”