Overview
FZN25-12/EZIRIN25-12D/T and FZRN25-120D/125-31.5 indoor high-voltage AC vacuum load break switches with fuse combination appliances are control and protection devices for a 3-phase AC 50Hz, 12kV power distribution system. These products are oil-free, non-toxic, and non-flammable, posing no explosion hazard, and are widely used in industrial and mining enterprises, urban building power stations, and other locations. The latter offers a more reliable protection for electrical equipment like transformers compared to circuit breakers, especially suitable for ring networks, double radial power supply units, and substation transformers. The FZN25-12D/T630-20 indoor high-voltage AC vacuum load break switch (hereinafter referred to as the load break switch) is an indoor device for a 3-phase AC 50Hz, rated voltage of 12kV, suitable for power distribution stations and substation locations in industrial and mining enterprises, serving as protection and control for electrical facilities, used for switching load currents, closed-loop currents, no-load transformers, and cable charging currents. It features a grounding switch with the capability to interrupt short-circuit currents. Its operating mechanism can be operated manually or electrically, facilitating the three-remote control requirements of the power system. The FZRN25-2D/T125 31.5 indoor high-voltage AC vacuum load break switch-fuse combination appliance (hereinafter referred to as the combination appliance) is an indoor device for a 3-phase AC 50Hz, rated voltage of 12kV,
Suitable for power distribution stations and substation facilities in industrial and mining enterprises, used for load control and short-circuit protection. It also features a grounding switch with the ability to interrupt short-circuit currents. The operating mechanism is available in both manual and electric modes, facilitating the three remote control requirements of the power system.
