The medium voltage cubicle KTN is designed for distribution of up to 12 kV AC and 50 Hz frequency three-phase electricity to consumers. The cubicle is designed for use in air-insulated switchgear. The cubicle is manufactured in accordance with the requirements of IEC 62271-200 and company standard ĮST 2191434 – 20:2005. Depending on the wiring diagram, the cubicles KTN can be combined into one unit.