It is a long terminal shield for 4 poles Compact NSXm and PowerPact B devices.It is designed for protection against direct contact with power circuitThe long terminal shield is used for connection with cables or insulated bares.It can be mounted upstream and downstream the circuit breaker.This part provides IP 40 degree of protection and IK 07 mechanical impact protection.It can be mounted after the product installation and can be removed and put in place even if there are auxiliary wires.