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Metal armored withdrawable switch cabinet
  • Metal armored withdrawable switch cabinet
Metal armored withdrawable switch cabinet

Metal armored withdrawable switch cabinet

KYN28-12 metal armored withdrawable switch equipment (hereinafter referred to as the switch cabinet) is a new product designed and developed by domestic and abroad advanced manufacturing technology, suitable for 3.6 ~ 12KV three-phase AC 50Hz power grid, for accepting and distribution of electrical energy, and for purposes of the circuit controlling、 monitoring and protection. It can be used for single busbar, single busbar section system or double busbar system, and handcart type of the circuit breaker is easy to maintain. Mainly used in power substations, industrial and mining enterprises, hotels, communities, municipal construction, and petrochemical sector as controlling protection and power distribution monitoring.

Product Details

Technical characteristics

●The structure of cabinet is made from several coated aluminum zinc plate which bolted after multiple bending by CNC processing, the complete unit is composed of two main components which are cabinet and middle pull out parts

●All operations are conducting under the cupboard door closed

●The cabinet separates into four compartments, the protection grade of the shell is IP4X, it is IP2X when the door of the circuit breaker chamber open. High protection grade can prevent the invasion of clutter and pest

●Simply to replace the circuit breaker, and handcart has good exchange performance

●Cabinet can be installed against the wall, maintain from the front side to reduce the occupied area

●There is enough space in cable chamber, abundant cables can be connected

●Circuit breaker chamber and cable chamber can add heater separately to prevent condensation and corrosion

●Circuit breaker chamber and cable chamber can add lighting device according to users’ requirements for convenience of maintenance and repair

●With overhead outlet, cable access and other functional programs, it can be various forms of electricity distribution equipment by arranging and assembling

Working conditions

Ambient temperature: -25℃~+40℃

Altitude: ≤2000m (If it is more than 2000m, please specify when ordering)

Relative humidity: ≤95%(+25℃)

Earthquake intensity: ≤8 degrees

Installation Environment: In the place where there is no fire, no explosion hazards, no serious pollution, no chemical corrosion and violent vibration

Technical parameters


Rated voltage
KV3.6, 7.2, 12
Rated frequencyHz50

CB Rated current
A630, 1250, 1600, 2000, 2500, 3150

Cabinet Rated current
A630, 1250, 1600, 2000, 2500, 3150

Rated flexible and stable current(4s)
KA16, 20, 25, 31.5, 40, 50

Rated flexible and stable current(peak)
KA40, 50, 63, 80, 100, 125

Rated short and open circuit current
KA16, 20, 25, 31.5, 40, 50
Rated short circuit open and close current(peak)KA40, 50, 63, 80, 100, 125

Rated insulation level

1min power frequency withstand voltage
KV24, 32, 42
Lightning impulse withstand voltageKV40, 60, 75

Protection level
when the compartment door and the breaker door are opened)