Siemens neozed screw fuse cap d01 d02 moulded plastic siemens 5sh4163 the siemens 5sh4163 fuse cap is supplied in do2 size and has been designed for the neozed fuse system the fuse cap has a blown fuse indicator which is visible through the screw cap when mounted the screw cap is ideal for single and three pole fuse bases siemens 5sh4163 screw cap d02 with test hole