Vacuum Interrupters for Load Switch are suitable for three-phase AC 10KV, 50HZ power system, or with complete sets of power distribution equipment and ring network switchgear, combined substation, etc. It is widely used in domain network construction and renovation projects, industrial and mining enterprises, high-rise buildings and public facilities, and can be used as a ring network power supply or terminals, and plays the role of distribution and control of electric energy. Hongfa's vacuum interrupter for load switch adopts primary sealing and discharging process, which is characterized by high vacuum degree, high voltage resistance, high closing current, long service life and low circuit resistance.