The D fuse-links are suitable in protecting the electrical installation, control and signal circuits in overload and short-circuit currents. These products include a full range of five physical sizes which are DI, DII, DIII, DIV and DV fuse-links, basic ceramic and brand-new plastic fuses and various needed materials. They have rated voltages that ranges from 500 V, 690 V, 750 V and 1200 V a.c. resp. 500 V or 600 V d.c. which includes AC 50 kA and DC 8 kA rated breaking capacity. These products can be applied in industrial purposes, which are required with the requirements of the IEC 60664-1 regarding the insulation coordination for the materials under low-voltage systems. They are also ideal to use for residential, business and similar buildings.