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Vacuum Circuit Breaker(VCB)12KV 24KV 36KV ZW43 12kv vacuum circuit breaker

ZW43 12kv circuit breaker ac vacuum switch
They are designed for the construction and reform of urban and rural grid. The bottom of the product has adopted stainless steel and galvanized carbon steel with ultraviolet-proof coating material, to make sure it’s normal outdoor operation. Each stainless steel component can ensure it’s durability, stability, water-proof and salt fog against ability.

    Product Description

    ZW43 12kv vacuum circuit breaker

    Product Description

    ZW43 12kv vacuum circuit breaker

    ZW43-12/T630-20 type outdoor high voltage isolate vacuum switch is a new generation of high voltage electrical equipment developed by both home and overseas advanced technology. Each of the technical performance have reach the standard of GB3804 and IEC.

    They are designed for the construction and reform of urban and rural grid. The bottom of the product has adopted stainless steel and galvanized carbon steel with ultraviolet-proof coating material, to make sure it’s normal outdoor operation. Each stainless steel component can ensure it’s durability, stability, water-proof and salt fog against ability.

    It has characteristic of small size, light weight, good appearance, easy operation, strong breaking ability, long electrical life maintenance free and obvious fracture. It can adopt manual single-pole operation and also electric, distance operation.

    Application:

    1.This outdoor high voltage vacuum circuit breaker that the rated voltage of the three-phase ac 50HZ outdoor distribution equipment the rated current 630A~1250A, short-current 20KA.It mainly used for loading current, overcorrect and short current which use cut-off and close-open electricity system-
    2. Suitable for industrial and mining establish company. The aim is to protect and control the system and easy to suitable the rural and some frequent operation place.

    Ambient condition

    1 Ambient temperature: max +40°C min -40°C

    2 Altitude: ≤2000m

    3 Wind pressure: ≤700Pa(equals to wind speed 34m/s)

    4 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%

    5 Air contamination degree: IV degree

    6 Earthquake intensity: ≤8 degree, no frequent violent vibration.

     

    Main technical parameters 

    Serial number

    Project

    Unit

    Parameter

    1

    Rated voltage

    KV

    12

    2

    Rated frequency

    Hz

    50/60

    3

    Rated Current

    A

    630-1250

    4

    Rated short-circuit breaking current

    KA

    20

    5

    Rated peak withstand current(peak)

    KA

    50

    6

    Rated short-time Withstand current

    KA

    20

    7

    Rated short circuit making current (peak)

    KA

    50

    8

    Mechanical life

    Times

    10000

    9

    Rated short-circuit breaking current   breaking number Times

    Times

    30

    10

    power frequency withstand voltage   (1min):(wet) (dry) Phase, on the ground / Fracture

    KV

    42/48

    11

    Lightning impulse withstand voltage(peak)   Phase, on the ground/Fracture

    KV

    75/85

    12

    2 Times Loop 1min frequency voltage

    KV

    2