Switchboard panels of SPO 70 and SPO 90 series are designed for admission and distribution of the energy with the voltage to 660V of the alternate current with the frequency of 50 Hz and for outgoing lines protection against overcharge and short circuit in the earth and neutral connected networks. The cabinet units are designed for installation on the industrial projects and in the transformer substations. They are made for one way service floor encased wire-frame and hinged frameless discharge.
