This is an insulation accessory for 4 poles fixed Compact NS 630b to 1600. This long connection shield protects against direct contact with power circuit It insulates power connection points, particularly when cables with lugs are used. It can be mounted upstream and downstream of fixed devices. It allows to reach the clearance distance requested by IEC 60947-2 standard. It provides IP40 degree of protection and IK07 mechanical impact protection.