NH4 fuse links are European DIN blade type fuses that are specifically designed for industrial and general purpose cable and line protection. These fuses are used with slotted tag DIN bases. They have a Cd/Pb free structure with conducting grip lugs. NH4 fuse links comply with the standards IEC 60269-2, AS60269, DIN43620, and VDE0636/21. They have a DIN size of '4' and a breaking capacity of 120 kA. The rated current is 630 A and the rated voltage is 500 VAC.