LW3-12 12kV Outdoor SF6 Gas Circuit Breaker

LW3-12 12kV Outdoor SF6 Gas Circuit Breaker is a widely used pole-mounted high voltage switchgear for 12kV outdoor power distribution network. It uses SF6 gas for insulation and arc extinction, featuring compact size, light weight, maintenance-free and stable performance. Perfect for overhead line sectional control, loop switching and overload & short circuit protection.

其他信息

Product Details:

 

General Introduction

LW3-12 I II III type outdoor SF6 circuit breaker is a new type outdoor high voltage electrical equipment which takes SF6 gas as its arc extinguishing and insulation medium. There are three types of operating mechanism-I type manual energy storage spring operating mechanism, II type motor energy storage spring operating mechanism and III type DC electromagnetic operating mechanism.

Compared with other 12kV outdoor circuit breaker, LW3-12 outdoor SF6 circuit breaker is simple in

structure with good arc extinguishing and insulation performance.

With LW3-12 SF6 circuit breaker, users can reduce cost, eliminate danger of fire and improve the reliability of electric system.

 

Technical Specification

  • Rated Voltage: 12kV
  • Rated Frequency: 50Hz
  • Rated Current: 630A
  • Rated Short-circuit Breaking Current: 20kA
  • Rated Short-time Withstand Current: 20kA/4s
  • Rated Peak Withstand Current: 50kA
  • Operating Mechanism: Spring operating mechanism
  • Installation Type: Pole mounted outdoor type
  • SF6 Gas Insulation: Sealed fully enclosed structure
  • Ambient Temperature: -30℃ ~ +40℃
  • Altitude: ≤1000m
RatedVoltage

(kV)
Rated

Current(A)
Rated 

Short-circuitBreaking

Current

(kA)
Rated

 Short-circuit Closing

Current

(kA)
Rated

Peak

Withstand

Current

(kA)
Rated 

Short-circuit

Withstand

Current

(kA)
Rated 

Short-circuit

Duration

Time

(S)
Rated

 Short-circuit

Current

Breaking

Times

(times)
Weight(kg)
12
400

630

1250
6.3

8

12.5

16
16

20

31.5
16

20

31.5
6.3

8

12.5

16
4
30
I type 122 II type 130
III type 132

Applications

Suitable for 12kV urban & rural power grid, overhead distribution lines, industrial and mining enterprises, residential community power supply, outdoor substation incoming and outgoing line protection and sectional switching.

Our Service

We offer OEM, customized technical parameters, installation drawings and global after-sales technical support. All products comply with international standards with reliable quality and competitive factory price.

Outline Drawing

 

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