The LZZBJ9-10C1 model is designed for current measurement, energy billing and protection using relays in electrical distribution networks with frequencies of 50 Hz or 60 Hz and nominal voltages up to 10 kV.
From a technical point of view, the device offers a wide range of primary currents — from low values to several thousand amperes — and supports different accuracy classes (such as 0.2, 0.5, 5P or 10P), allowing its adaptation to both measurement and protection applications.
The design features a magnetic core and primary and secondary windings fully integrated within a resin body, reducing partial discharges and improving dielectric stability. Furthermore, its fully sealed column-type structure ensures high resistance to overvoltages, electrical arcs, and ultraviolet radiation.
Among its main advantages is its ability to operate in compact environments, such as medium voltage switchgear, where it is easily integrated into systems such as KYN28 or XGN, widely used in substations and industrial facilities.
The transformer also offers a high capacity to withstand short-circuit currents, with high thermal and dynamic values, which reinforces the safety of the electrical system against transient faults or overload conditions.
Thanks to its maintenance-free design, long-term reliability, and compatibility with international standards such as IEC 60044-1 or IEC 61869-2, the LZZBJ9-10C1 is positioned as a key solution for modern electrical infrastructures, including distribution networks, industrial plants, data centers, and critical energy systems.
