NH3 is a European DIN blade type fuse link that is specifically designed for industrial and general purpose cable and line protection. It has a Cd/Pb free structure with conducting grip lugs. The NH3 fuse links meet the standards of IEC 60269-2, AS60269, DIN43620, and VDE0636/21. They have a DIN size of '3' and a breaking capacity of 120 kA. The rated current for NH3 fuse links is 400 A, with voltages of 500 VAC/440 VDC.