SCT series split-core (retro-fit) current transducer is designed for applications to measurement and monitoring of single phase AC current. An internal precision resistor across the secondary winding of the CT provides a low safe voltage output. The non-intrusive design provides you simple and safe installation. The structure of the self-locking is safe, easy to install, also portable. Its wide inner window can clamp big cables or bus-bars, and wide range of sizes can accommodate all the existing installations. SCT can be applied in current measurement, monitoring and protection for electrical wiring and equipment, current and power measurement for electric motors, lighting, air compressor, heating and ventilation system, current, power and energy monitoring device, relay protection device.