Short Description:
The FZN21-12D/T630-20 \ FZRN21-12D/T125-315 high-voltage vacuum load switch and combination device are used in three-phase AC 12KV, 50Hz distribution systems. They have the advantages of compact structure, small size, light weight, long service life, strong closing and breaking ability, safety and reliability.
The FZN21-12D/T630-20 \ FZRN21-12D/T125-315 high-voltage vacuum load switch and combination device are used in three-phase AC 12KV, 50Hz distribution systems. They have the advantages of compact structure, small size, light weight, long service life, strong closing and breaking ability, safety and reliability. When used in conjunction with fuses (referred to as combination devices), they can replace expensive circuit breakers, and their operation and maintenance are simple and convenient.
Environmental conditions for use:
△ Altitude ≤ 1000m;
The ambient temperature ranges from -25 ℃ to+40 ℃;
Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
Places without conductive dust, corrosive gases, and water vapor;
△ Places without fire and explosion hazards;
Places without severe vibrations and with an inclination of less than 3 °.