Limitor®-PD HV fuses are back-up fuses as defined in the standards: IEC 60282-1 and VDE 0670 T402 and dedicated to protect transformers against effects of short-circuit currents. The VDE 0670 T402 defines fuses between 6.3A and 160A, for other ratings, thanks to consult Limitor®-P HV fuses range. To guarantee high quality, Mersen uses the best materials: fuse-elements are in pure silver, caps are in copper coated with silver and bodies are in ceramic.