HHF
Key Features & Benefits
Application range, types
Preliminary note
High-voltage fuse-links of size 55 x 520 mm are suitable for the protection of power transformers used in energy distribution. Usually they are for indoor application, but outdoor use is possible. In case of a short circuit the fuse-link will interrupt fault currents between five times the fuse rated current and the rated breaking current.
Standards: IEC 60282-1, NFC 64210.
The fuse tubes are made of high grade ceramic and are brown glazed inside and outside. The contact caps are of electrolytic copper and silver plated. For the fuse elements pure silver is used. The melting elements are wound on a star shaped ceramic support.
For arc quenching the fuse-links are filled with quartz sand of a cer- tain grain size.
The fuse-links are available with a temperature limiting striker or without striker pin.
