12kv High Voltage Isolating 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

Product Description

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 structure


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


• Conductive part fixed on the base by pillar insulators


• Enhanced mechanical strength with slotted copper plates


• Optional magnetic locking plate for increased short-circuit current protection

Working Principle:

The conductive part of the disconnect switch is securely fixed on the base, with each phase connected through contact knives and holders. The switch is operated through a handle connected to a moving mechanism, ensuring reliable performance.

Model Meaning:

The model numbers of the disconnect switches indicate the rated current capacity, with variations available for different load requirements.

Product Description

Technical Parameters for Storage and Transportation

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


• Altitude: not exceeding 1000m


• Relative Humidity: daily average ≤ 95%, monthly average ≤ 90%


• Water Vapor Pressure: daily average ≤ 2.2 × 10-3Mpa, monthly average ≤ 1.8 × 10-3Mpa


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


• Vibration: no regular or violent vibration

Note: Consult with Yueqing Liyond Electric Co., Ltd. for any discrepancies with the above conditions.

Technical Parameters

For detailed technical specifications, please refer to the manufacturer.

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