Insulation O.D. min 1.24"(31,5 mm) - max 2.07" (52,6 mm). This splice kit is a 35 kV-class inline splices for joining jacketed concentric neutral (JCN) and concentric neutral (CN) power cables. It is a cold shrink design sized to fit Type MV-90 or type MV-105 cables with copper or aluminum conductor sizes ranging from 350-1000 kcmil (185-500 mm2).