Split Core Current Transformers

General Details

Split Core Current Transformers (CTs) are a versatile range of split core(take apart) current transformers offering a cost effective and efficient method by which the current can be measured without the need to break the conductor, thereby reducing installation and commissioning time. Foot or Busbar mounted.

Split Core Current Transformers offer high quality measurement with accuracy up to class 0.5 and availability in a wide range of window sizes and transformer ratings.

A Current Transformer (CT) is a type of transformer that is used to reduce or multiply an alternating current (AC). It produces a current in its secondary which is proportional to the current in its primary.

Current Transformers, along with voltage or potential transformers, are instrument transformers. Instrument transformers scale the large values of current to small, standardized values that are easy to handle for measuring instruments and protective relays. The Instrument transformers isolate measurement or protection circuits from the high voltage of the primary system. These units provide a secondary current that is accurately proportional to the current flowing in its primary, presenting a negligible load to the primary circuit.

These units are the current sensing units of the power system and are used at generating stations, electrical substations, and in industrial and commercial electric power distribution.

Advantages of Current Transformers are that the units can measure high current easily, high electrical isolation, simple construction, and easy maintenance and installation.


  • Accuracy up to Class 0.5
  • Available in a wide range of transformer ratings
  • Cost effective
  • Faster installation
  • Foot or Busbar mounted
  • High quality measurements
  • Long product life


  • Control
  • Distribution systems
  • Generator Sets
  • Switchgear


  • CSA


500 SPLIT CORE   4.1 x 7.1″to 10.1 x 30.1″window, 300-6000:5 A


600 SPLIT CORE  2.00 x 5.50″ window,  400-2000:5 A  


601 SPLIT CORE  4.50 x 4.50″ window, 400-2000:5 A  


606 SPLIT CORE   2.75 x 2.70″window, 200-1200:5A      


608 SPLIT CORE   2.60 x 6.25″window, 500-3200:5A       


617 SPLIT CORE     2.00 x 3.50″ window, 400-1200:5A



500 SPLIT CORE   4.1 x 7.1″to 10.1 x 30.1″window,300-6000:5 A

600 SPLIT CORE   2.00 x 5.50″ window,  400-2000:5 A

601 SPLIT CORE   4.50 x 4.50″ window, 400-2000:5 A

606 SPLIT CORE   2.75 x 2.70″window, 200-1200:5 A

608 SPLIT CORE  2.60 x 6.25″ window, 500-3200:5 A

617 SPLIT CORE 2.00 x 3.50″ window, 400-1200:5 A


  • CSA