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. NH3 complies with standards such as IEC 60269-2, AS60269, DIN43620, and VDE0636/21. It is a DIN size '3' fuse link with a breaking capacity of 120 kA. The rated current for NH3 is 800 A and the rated voltage is 500 VAC.