Split Core Current Transformers have a core which can be split into two. This makes them easy to 
fit on bus bars, cables, etc. with having to remove the conductor such as the bus bar or the cable which is tedious and time consuming.
With Split Core Current Transformers, one half of the core is placed over the de-energized conductor and the other half is bolted to it. This reduced down time and allows easy removal and replacement of the current transformers.
Split Core Current Transformers are available in many ratings and sizes.