The screened gapless surge arrester are “T“-shaped products. They are designed for direct connection onto outer cone bushings in accordance with EN50180 or EN50181 with interface type “C” or for parallel connection mating to the rear entry of the RSTI base screened connector system designed for system voltage up to 41 kV. Complete kit including screened surge arresters, threaded pin and ground lead for three phases facilitates installation and storage.