SCTK731 series retro-fit (split-core) current transformer has been specially   
designed to facilitate their installation in new or already existing net works.
They may be installed without opening any cable or bus-bar circuit. An interna precision resistor across the secondary winding of the CT provides a low safe voltage output. It can save time and the installation costs.
  Features
   1.Double-screw fastening, safe, easy to install, portable
   2.Wide inner window, allowing clamping of big cables or bus-bars
  3.Wide range of sizes to accommodate all the existing installations
  Applications
  1.Current measurement, monitoring and protection for electrical wiring and equipment.
  2.Current and power measurement for electric motors, lighting, air compressor,    heating and ventilation       system, air-condition equipment and automation – control system.
  3.Current, power and energy monitoring device.
  4.Relay protection device.
  Circuit connection diagram
  The mor details, pls contact us.