Shanghai, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
Sample Available

Circuit Breaker, Live Tank Circuit Breaker, High Voltage Circuit Breaker manufacturer / supplier in China, offering 252kv Sf6 Live Tank Circuit Breaker, Tripleye Rods, Porcelain Housed Metal Oxide Surge Arresters and so on.

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252kv Sf6 Live Tank Circuit Breaker

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Min. Order / Reference FOB Price
1 Piece US $22,000-45,000/ Piece
Port: Shanghai, China
Production Capacity: 5000PCS/Year
Payment Terms: L/C, T/T
Breaking Capacity: High Voltage Circuit Breakers
Operation: Energy-storage Type
Speed: High-Speed Circuit Breaker
Arc-extinguishing Medium: SF6
Installation: Fixed
Structure: ELCB

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Basic Info

Model NO.: LW10B-252
Poles Number: 1
Type: Circuit Breaker
Function: Conventional Circuit Breaker, Overcurrent Protection, OVP(Overvoltage Protection)
Certification: ISO9001-2000, CCC
Trademark: Powery
Transport Package: Standard External Transport Packaging
Origin: China

Product Description

1. High technical data
LW10B-252Kv SF6 circuit breakers own big breaking capacity and good insulation. The interrupter, designed
with advanced technology, can break 50kA short circuit current 26 times continuously without
2. Module design in operating system
Valve system of the hydraulic mechanism adapts module integration design with a small volume, which
not only remains such characteristics of hydraulic mechanism as quick action, stable performance, low
noise and no wearing etc., but also effectively prevents oil leakage.
3. Interchangeable ability of components and spare parts
Main body of circuit breaker is directly erected on the top of hydraulic mechanism, and the interrupter is
standardised, so components and spare parts of the same rating and construction inside interrupter are
strictly interchangeable.
Main parameter:
Item  Technical Data
 Rated voltage  252kv
 Rated frequency  50Hz
 Rated current  3150,4000A
 Rated short circuit breaking current 40/50  kA 
 Rated short line fault breaking current 36/45  kA 
 Rated out of phase breaking current  10/12.5  kA
 Rated peak withstand current 100/125  kA
 Rated short circuit making current (peak) 100/125  kA
 Rated short time withstand current 40/50  kA
 Rated duration of short circuit  3 s  
 Rated line charging breaking current (r.m.s)  160  A
 Breaking time of rated short circuit current  20  times  
 Mechanical endurance  5000/10000 times  
 Rated SF6 gas pressure at 20ºC 0.4/0.6  Mpa
 SF6 gas moisture content (Ex-work)  ≤150 PPM  
 SF6 gas leakage rate (per year)  ≤1 %  
SF6 gas weight (per pole)   6kg (without closing resistance)/10kg(with closing resistance) 
Circuit Breaker weight (per pole) 1600kg (without closing resistance)/1800kg(with closing resistance) 
 Operating force for opening/closing  76/38   kN
 Longitudinal terminal load2250   N
 Horizontal  terminal load1768   N
 Vertical terminal load1250   N
252kv Sf6 Live Tank Circuit Breaker
Our company
SHANGHAI POWERY INDUSTRIES CO., LTD. ( SPI ) corporate group has been dealing with the interfaces in the flow of electricity ever since it was founded back in 2011. SPI's three groups - Pole Line Hardware( Tsingtao, China ),High Voltage Line Protection(Lishui, China ), Distribution Transformers( Shinseong, Korea ) - offer a unique set of brands and products. As a specialist in energy transmission and distribution, we offer our customers and business partners a range of sophisticated, future-ready products: For all voltage ranges and wherever reliable, long-lasting systems are needed for powerful energy grids. We are already well-established in all key global markets and are continuing to strengthen our brand on a worldwide scale.SPI has identified key factors that will be instrumental to its sustainabilit.
252kv Sf6 Live Tank Circuit Breaker


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