Since the transient voltage surge suppression (TVSS) industry is on the increase, ETI developed a series of fuses named SRF (Surge Rated Fuses), intended for the protection of TVSS products. The SRF Series has
been designed to survive 8/20 ìs lighting surge pulses without operating, allowing the TVSS system to react to the surge. All surge fuses have 8/20 ìs ratings, not a continuous current rating.
These fuses are intended to be installed in series with the TVSS devices and do not normally carry current, except for the periodic random surges caused by TVSS breakdown during normal operation.