Core balance transformers protects or signals resources such as earth leakage protection relays. this transformer or toroid proposed by SOCOMEC meet requirements in terms of measurement sensitivity and it is suitable for the protection relays of earth leakage currents. The core balanced transformer can be installed on DIN-rail, on the back plate or directly on the cable. These products can be into small spaces with high integration constraints and provide easy and rapid cabling. It also have a complete product range, All dimension and types are available for compatibility with any bar and cable configurations.