• 1250A 3 Phase Disconnect Switch Grey
  • 1250A 3 Phase Disconnect Switch Grey
  • 1250A 3 Phase Disconnect Switch Grey
  • 1250A 3 Phase Disconnect Switch Grey
  • 1250A 3 Phase Disconnect Switch Grey
  • 1250A 3 Phase Disconnect Switch Grey

1250A 3 Phase Disconnect Switch Grey

Type: High-voltage
Structure: Three-column Disconnector
Installation: Indoor High-voltage
Operation: Manual
Grounding Mode: as Specification
Movement Mode: as Specification
Samples:
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Basic Info.

Model NO.
GN19-12
Number of Poles
Three Pole
Grounding
as Specification
Series
Three
Run
as Specification
Switching Mode
as Specification
Common Model
as Specification
Structure of Operating
Manual
Certification
ISO
Brand
Liyond
Rated Voltage
12kv
Current
400A-1250A
Color
Grey
Transport Package
Standard Export Packaging
Specification
as specification
Trademark
Liyond
Origin
China

Product Description

1250A 3 Phase Disconnect Switch Grey


GN19-12, 12C Series Indoor High-Voltage Disconnect Switches



GN19-12, 12C Series Indoor High-Voltage Disconnect Switches



The GN19-12, 12C series indoor high-voltage disconnect switches, manufactured by Yueqing Liyond Electric Co., Ltd., are designed for indoor use with a rated voltage of 12kV, three-phase AC 60Hz. These switches are ideal for dividing and closing circuits under voltage and no load conditions.



Features:



  • Three-pole type design

  • Consists of base frame, rotating shaft, lever, porcelain pillar insulator, gate knife, and connection board

  • Conductive part fixed on base by pillar insulators

  • Improved mechanical strength and heat dissipation area

  • Model variations include GN19-12/400, 630, 1000, 1250 types



Working Principle:


The conductive part of the disconnect switch is fixed on the base by insulators, with contact knives and holders for each phase. The contact knives are connected to tie insulators and the spindle, which is linked to the moving mechanism through the handle. Contact knives are designed for enhanced stability and performance.



Model Meaning:


The model variations of GN19-12/400, 630, 1000, 1250 types offer different features such as magnetic locking plates for increased safety and performance. Each model is designed to meet specific requirements based on the intended application.




1250A 3 Phase Disconnect Switch Grey


Product Description



Technical Parameters for Storage and Transportation



  • Ambient Temperature: +40ºC (upper limit), -10ºC (lower limit), -25ºC for storage and transportation

  • Altitude: not more than 1000m

  • Relative Humidity: daily average not exceeding 95%, monthly average not exceeding 90%

  • Water Vapor Pressure: daily average not exceeding 2.2 × 10-3Mpa, monthly average not exceeding 1.8 × 10-3Mpa

  • Air Quality: free from corrosive or combustible gases, water vapor, and pollution

  • Vibration: no regular or violent vibration



Note: Consult the manufacturer, Yueqing Liyond Electric Co., Ltd., for any deviations from the above conditions.



Technical Parameters


For more technical specifications, please refer to the manufacturer, Yueqing Liyond Electric Co., Ltd.




Model
Rated voltage  (kV)
Rated current 
(A)
Rated short-time withstand current
(kA/4s)
Rated peak withstand current
(kA)
GN19-12/400-12.5
12
400
12.5
31.5
GN19-12/630-20
12
630
20
50
GN19-12/1000-31.5
12
1000
31.5
80
GN19-12/1250-31.5
12
1250
31.5
80
GN19-12C/400-12.5
12
400
12.5
31.5
GN19-12C/630-20
12
630
20
50
GN19-12C/1000-31.5
12
1000
31.5
80
GN19-12C/1250-31.5
12
1250
31.5
80
1250A 3 Phase Disconnect Switch Grey
1250A 3 Phase Disconnect Switch Grey
 
 
1250A 3 Phase Disconnect Switch Grey1250A 3 Phase Disconnect Switch Grey1250A 3 Phase Disconnect Switch Grey1250A 3 Phase Disconnect Switch Grey1250A 3 Phase Disconnect Switch Grey1250A 3 Phase Disconnect Switch Grey1250A 3 Phase Disconnect Switch Grey

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