... HR17 Series Fuse Type Isolating Switch Rated voltage :690,500,400V Using category:100~630A Naidian Brand HR17 Series Fuse Type Isolating SwitchHR17 series fuse ... type isolating switch, rated insulating voltage AC 800V , rated ... standard GB14048.3-2002, IEC947-3(1999), 3C HR17 Series Fuse Type Isolating Switch