Jiangsu, China
Business Type:
Trading Company
Year of Establishment:
Plant Area:
1001~2000 square meters
Management System Certification:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workday
OEM/ODM Service
Sample Available

Vacuum, High Voltage Switch, Breaker manufacturer / supplier in China, offering Outdoor High Voltage Sf6 Sulfur Hexafluoride Circuit Breakers (LW8-40.5), 24kv Indoor Switching Disconnector with Handle Operation (GN19-24), Class 0.5 Class1.0 Ring Type Current Transformer (RCT-35) and so on.

Gold Member Since 2016
Supplier Homepage Products HV electric Outdoor High Voltage Sf6 Sulfur Hexafluoride Circuit Breakers (LW8-40.5)

Outdoor High Voltage Sf6 Sulfur Hexafluoride Circuit Breakers (LW8-40.5)

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $3,680-5,858/ Piece
Port: Ningbo, China
Production Capacity: 9000pieces/Year
Payment Terms: L/C, T/T, D/P, Western Union
Breaking Capacity: High Voltage Circuit Breakers
Operation: Electric Type
Speed: Normal Type Circuit Breaker
Arc-extinguishing Medium: SF6
Installation: Fixed
Poles Number: 3

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Basic Info

Model NO.: LW8-40.5
Type: Circuit Breaker
Function: Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification: ISO9001-2000, CE, CB, CCC
OEM or ODM: Accepted
Transport Package: Standard Export Package
Origin: China
HS Code: 85351000

Product Description

Lw8-40.5 Series Outdoor High Voltage Sf6Circuit Breakers
1.Professional Manufacture of China
2.Multi protection functions
3.CE,FCC,LVD&ROHS reports
Product Description
The LW8A-40.5(W)T2000-31.5 outdoor type SF6 breaker finds its universal range of applications for the three-phases electrical system with alternating current 50HZ and rated voltage 40.5kv. It is used for controlling and protecting the electrical system and measuring the current transformers. 
1. Insulation and reliable 
2. High mechanical reliability, 
3. Electrical circuit breaker

LW8-40.5 type outdoor high-pressure sulfur hexafluoride circuit breaker is three-pole ac 50 hz, outdoor high voltage switch equipment, applicable to 40.5 kV power transmission and distribution system control and protection, can also be used to contact circuit breaker and movable capacitor group. LW8-40.5 type circuit breaker with CT14 type spring operation mechanism. Accord with national standard GB1984-89 ac high voltage circuit breaker, and the international electrotechnical commission standard IEC56 publications of high voltage circuit breaker. 

Feature advantages
1, open circuit performance is good, short arc time and current life is long, continuous open 31.5 kA short circuit current at rated voltage 21 times don't repair, do not replace the sulfur hexafluoride gas; 
2, insulation and reliable; 
3, high mechanical reliability, frequent operation; 
4, movable capacitor current is 400 a group without renewed; 
5, simple structure, small volume, no maintenance cycle is long; 
rated voltagekV40.5
Lightning impulse withstand voltagekV185 / 215
Power frequency withstand voltage(1min)kV95 / 118
rated currentA2000
mechanical lifetime3000
Sf6 gas rated pressure(20°C)MPa0.45
Closure pressure(20°C)MPa0.40
Rated short circuit breaking currentkA31.5
Rated short circuit making current(peak)kA80
Rated short circuit withstand currentkA31.5
Rated peak withstand currentkA80
rated out-of-phase breaking current
rated duration of short-circuit
closing time
(Under rated operating voltage)
opening time
(Under rated operating voltage
close-open time
Rated operating sequence
The rated current opening and closing a single capacitor group
Accumulative breaking times of rated short circuit on power flowtime21
yearly gas leakage rate
Sf6 gas water content(20°C)ppm(v/v)≤150

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