Product description

SFKN12A-12D gas pressure type load switch, SMG-FKN12A-12 series pressure-type load switch - fuse combination for 12KV and below three box power distribution system, as transformers, cables, overhead lines and other electrical equipment control and protection Especially for the city network, the rural network of substation terminals and box-type substation. And applies to the ring network, dual radiation power supply unit control and protection.

SFKN12A-12 series pressure-type load switch can be divided into load current and overload current.

SFKN12A-12 series pressure-loaded load switch - fuse combination of electrical load current can be divided, overload current. Breaking circuit short - circuit current.

Model and meaning

Structural features

○ load switch, grounding switch, fuse and body in a frame, flexible combination, compact structure, small size, easy to install and easy;

○ fracture for the direct-acting layout, dynamic and thermal stability of current parameters high, one-time completion of the operation;

○ With the static contact insulation cover, so that the ring network cabinet in the structure to achieve the isolation, eliminating the need for insulation between the partitions, fracture insulation board, to prevent short-circuit arc accident in the cabinet;

○ has a unique structure of the valve, the load switch sub-gate, the grounding switch closed, the valve closed, protective performance;

○ Load switch and grounding switch, fuse between a reliable mechanical locking device to meet the "five anti" requirements;

○ With manual operation and AC-DC dual-mode power supply operation of the two forms, to facilitate the realization of the power system "three remote" requirements.

Environmental conditions

○ Ambient air temperature upper limit: +40 ℃, lower limit: -25 ℃

○ altitude of not more than 1000M;

○ relative humidity daily average of not more than 95%, the monthly average of not more than 90%

○ Seismic intensity: not more than 8 degrees;

○ No fire, explosion hazard, chemical corrosion and severe vibration of the place;

○ Pollution level: ll level. ○ Ambient air temperature upper limit: +40 ℃, lower limit: -25 ℃

○ altitude of not more than 1000M;

○ relative humidity daily average of not more than 95%, the monthly average of not more than 90%

○ Seismic intensity: not more than 8 degrees;

○ No fire, explosion hazard, chemical corrosion and severe vibration of the place;

○ Pollution level: ll level.

The main technical parameters

Outline and mounting dimensions (mm)