FKN-12 wall mounted load switch is suitable for controlling and protecting power equipment such as transformers, cables, overhead lines, etc. in three-phase distribution systems of 12kv and below; Especially suitable for terminal substations and box type substations in urban and rural power grids. And it is applicable to the control and protection of ring networks and dual radiation power supply units. The fkn-12d series compressed air load switch can switch between load current and overload current. The fkn-12R series compressed air load switch fuse combination device can switch load current, overload current, and short-circuit current of the circuit.

The FKN-12 series wall mounted load switch has the characteristics of compact structure, reasonable design, reliable interlocking, and high insulation level. Its opening and closing adopt a vertical vertical and straight action mode; The spring energy storage operating mechanism ensures that the opening and closing speed is not affected by the operator's operating force; The arc is extinguished inside the bell shaped insulation cover, and the free gas during arc ignition will not cause a decrease in the insulation strength between phases or to ground. Install an organic transparent insulation cover between the bell shaped cover and the support (i.e. between the switch isolation fracture) to completely isolate the charged body. And the protection level of the anti net cabinet has been improved. Reliable mechanical interlocking is installed between the load switch and the grounding switch; At the same time, the switch panel is also equipped with mechanical interlocking with the cabinet. These interlocks are simple and effective, ensuring that there will be no misoperation or charging errors. This series of products adopts copper tungsten arc contacts and plum blossom shaped arc contacts, which make the switch conductive reliably and have a long electrical life. This series of products is easy to maintain, easy to operate, reliable in operation, and highly praised by a large number of users.

2¡¢ Meaning of FKN12A-12 model
F K N - 12
©¦©¦©¦ ©¦ ©ô
©¦©¦©¦ ©¦
©¦©¦©¦©¸----------- Rated voltage
©¦©¦©¸---------------- Indoor
©¦©¸------------------- Air type
©¸--------------- Load switch

2¡¢ Environmental conditions:
a) The ambient air temperature shall not exceed 40 ¡æ, and the daily average temperature shall not exceed 35 ¡æ; The minimum ambient air temperature is -15 ¡æ.
b) The average daily relative humidity does not exceed 95%; The average daily water vapor pressure shall not exceed 2.2kPa; The average monthly relative humidity does not exceed 90%; The average monthly water vapor pressure shall not exceed 1.8kPa.
c) The altitude shall not exceed 1000m.
d) The surrounding air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapors, or salt spray.
e) Vibration or ground motion from outside the switchgear and control equipment can be ignored.
f) The level amplitude of electromagnetic interference induced in the secondary system shall not exceed 1.6V.

FKN-12 series wall mounted load switch