FZW28-12F outdoor Boundary Vacuum Circuit Breaker, or called Boundary Load Break Switch, is applied to rated voltage 12kV, AC 50HZ outdoor distribution equipment , use for opening .closing load current and closing short circuit current . Applicable to substations and industrial and mining enterprises and city, rural network for protection and control purposes, and city, rural network automatic distribution net and frequent operation place.

GFLW-12/24/40.5 series of pole-mounted SF6 load-break switches are used in power distribution networks with rated voltages of 12/24/40.5kV, rated currents of 400A or 630A ,and a rated frequency of 50/60Hz,to break and close the load current and overload current of the system, it can automatically isolate the faulty sections of the power distribution line.