Home / Outdoor Type High-voltage Circuit Breaker / LW8A Outdoor High Voltage SF6 Circuit Breaker With Good Quality

LW8A Outdoor High Voltage SF6 Circuit Breaker With Good Quality

Specification: 500-6000 USD/PIECE
Use Parts: 1 PIECE
Supply Ability: 100 PIECE
Payment Terms: TT , LC , Others
Place of OriginZhejiang, China
Brand NameAISO/OEM
Model NumberLW8A-40.5
TypeHigh Voltage, Outdoor High Voltage Circuit Breaker
Poles Number3
ProductSF6 Circuit Breaker
Rated Voltage40.5kV
Rated current1600/2000A
Rated frequency50Hz
Mechanical life10000Times
CustomizedAccept special order
Packaging DetailsStandard export wooden case packing
PortNingbo or Shanghai

Quick Reply     Professional Consultation           Continued Cooperation 


Act as the protecting and controlling unit for grid equipments and industrial mining enterprises’ equipments,LW8A-40.5 type outdoor SF6 circuit breaker is an outdoor device used in AC 50HZ three-phase 40.5KV power system. It is applicable to locations that need frequent operating in rated current or under repeatedly on/off short circuit current. Containing the current transformer for measurement and protection, it can directly replace SW2-35 less oil circuit breaker and various types of oil circuit breaker with transition bracket. It can also be used as a tie breaker and switching capacitor group situations with CT14 type spring mechanism.



GB/T28001-2011 idt OHSAS18001:2007

GB/T24001-2004 idt ISO14001:2004


Excellent breaking performance, short burning arc time, long life;

Mechanical life of more than 3000 times;

Operation frequently, each can be installed 12 current transformers;

New type SF6 MKZ pointer type density meter, pressure gauge reading is not affected by temperature changes; 

Environmental Condition

Ambient temperature:-30℃~+40℃


Wind pressure:≤700Pa

Relative humidity:daily average relative humidity: ≤95%;monthly average relative humidity≤90;daily average saturated vapor pressure ≤2.2KPa;monthly average value   ≤1.8KPa

Air pollution level:Ⅲ

Earthquake intensity:≤8 degree

The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution

Type designation

LW8A-40.5 Outdoor High Voltage SF6 Circuit Breaker With Good Quality

Main technical data

No.  Item   Unit Data 
 1  Rated voltage KV 40.5
2 Rated current A 2000
3 Rated frequency HZ 50
5 Rated short circuit breaking current KA 31.5
6 Rated short-circuit current (peak) KA 50
7 Rated short-circuit withstand current KA 20
10 Rated short circuit closing current(peak) KA 50
13 Electrical life of rated short circuit breaking current  times 30
14 Rated short circuit duration s 4
15 Rated line charging close current A 31.5
16 Rated operation sequence
17 Split time ms ≤60
18 Closing time ms ≤100
19 Velocity of rigid composite m/s 3.2
20 Velocity of rigidity m/s  3.4
21 Mechanical life times 6000
24 Quality of each circuit breaker kg 1400

Outline and installation

LW8A-40.5 Outdoor High Voltage SF6 Circuit Breaker With Good QualityLW8A-40.5 Outdoor High Voltage SF6 Circuit Breaker With Good Quality 

Send a message to us


Liushi Town, Yueqing, Wenzhou, Zhejiang Province.


Yueqing Aiso Electric Co.,Ltd. is located in Liushi Town, Yueqing, Wenzhou, Zhejiang Province. Industrial Zone, Liushi town is China's high and low voltage electrical appliances.
Yueqing Aiso Electric Co., Ltd