pecially, since the beginning of the 1985s, Hanguang has produced well over 650,000 vacuum interrupters to date, a high tech product in great demand worldwide. The product range currently comprises vacuum interrupters for circuit-breakers in the range from 12 to 40.5 kV with short-circuit breaking currents up to 80 kA, and interrupters for switch-disconnectors and contactors from 7.2 to 12 kV.