FN12-12 Compressor-type Load switch and FRN12-12D series compressor-type load switch-fuse combination appliance are new series of switchgear developed by our company, which are applicable to the three-phase distribution system of 12kV and below, and are used for the control and protection of power equipment such as transformers, cables, overhead lines, etc; Especially suitable for terminal substations and box-type substations of urban and rural power grids. It is also applicable to the control and protection of ring network and double radiation power supply unit.

FN12-12D series pressure-type load switch can open and close load current and overload current.

Work conditions

Altitude ≤ 1000m

Ambient air temperature: upper limit+40 ℃, lower limit - 25 ℃ (storage and transportation allowed at - 30 ℃)

The daily average value of relative humidity of air is not more than 95%, and the monthly average value is not more than 90% 

Seismic capacity: seismic intensity shall not exceed 8

The surrounding air shall not be obviously polluted by corrosive or combustible gases, water vapor, etc

No frequent severe vibration

The pollution level shall not exceed Level I

Executive Standards

GB3804-2004 3.6KV~40.5KV AC High Voltage Load Switch

GB16926-2009 AC High Voltage Load Switch-Fuse Combinations

IEC265-1 High-voltage load switch Part I: High-voltage load switch with rated voltage above 1kV and below 52kV

IEC420 (1990) High-voltage AC load switch-fuse combination apparatus