1250A 3 Phase Disconnect Switch Grey

• Customization: Available
• Type: High-voltage
• Structure: Three-column Disconnector
• Model NO.: GN19-12
• Installation: Indoor High-voltage
• Operation: Manual
• Grounding Mode: as Specification
• Movement Mode: as Specification
• 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

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.

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