NH4 is a European DIN blade type fuse link that is specifically designed for industrial and general purpose cable and line protection. It is used with slotted tag DIN bases. The fuse link is manufactured as a Cd/Pb free structure with conducting grip lugs. It meets the standards of IEC60269-2, AS60269, DIN43620, and VDE0636/21. The NH4 fuse link has a DIN size of '4' and a breaking capacity of 120kA. It is rated for a current of 1250A and a voltage of 500VAC.