... voltage up to 440v,rated current up to 3, 150A,The switch is used in the infrequent making and breaking ... petrochemical,and other industries. This kind of lode isolation switch possesses flexible structure of modularized design,possesses fiexible and ... lcn320504Rated short-current making capability lcm (KA peak value)7.57.5Mechanical durability1000010000Electric durqbility Ue=660V,Rated current lecosa= ...