Citel ds40vgs 230 series ac surge protectors citel ds42vgs 230g the ds42vgsg type 2 3 ac surge protector uses citels vg technology to completely eliminate leakage and operation current while providing maximum discharge capacity and an optimised level of protection the electrical system includes a disconnector and its associated indicatorthe ds42vgsg surge protector is designed to be used in a multipole configuration to protect single phase 3 phase or 3 phaseneutral ac networks