GN19-12 12kV Indoor High Voltage Disconnect switch

GN19-12 series disconnect switches are suitable for AC 50/60Hz indoor power systems with rated voltage up to 12kV.

The switch is equipped with a CS6-1 manual operating mechanism and is widely installed in switchgear panels, substations, and industrial distribution systems.

The product is designed to:

• provide safe electrical isolation,
• ensure visible disconnection during maintenance,
• improve operational safety,
• support reliable medium-voltage switching systems.

Variants include:

• standard type,
• wall-through type (GN19-12C),
• anti-pollution type,
• high-altitude type,
• live display type.

Main Features

• Rated voltage: 12kV
• Indoor installation type
• Manual operating mechanism (CS6-1)
• Compact and simple structure
• Large insulation clearance
• Stable operation and long mechanical life
• Optional wall-through installation type
• Reliable visible isolation point
• Maintenance-free design

Technical Specifications

Model Meaning

Typical models:

• GN19-12/400-12.5
• GN19-12/630-20
• GN19-12/1000-31.5
• GN19-12C/1250-40

Meaning:

• GN = Indoor disconnect switch
• 19 = Design serial number
• 12 = Rated voltage (kV)
• C = Wall-through type
• 400 / 630 / 1000 / 1250 = Rated current (A)
• 12.5 / 20 / 31.5 / 40 = Short-time withstand current (kA)

Working Conditions

• Ambient temperature: -25°C to +40°C
• Altitude: ≤1000m
• Relative humidity:
  • Daily average ≤95%
  • Monthly average ≤90%
• Earthquake intensity: ≤8 degree
• Installation sites should be free from:
  • explosive materials,
  • corrosive gases,
  • severe vibration,
  • conductive dust.

Applications

• Medium voltage switchgear
• Power substations
• Industrial distribution systems
• Transformer isolation
• Ring main units (RMU)
• Electrical maintenance isolation

Product Advantages

Reliable Isolation

Provides a clear visible disconnection point for maintenance safety.

Compact Design

Suitable for compact indoor switchgear cabinets.

Easy Installation

Simple mechanical structure allows convenient installation and operation.

Long Service Life

Stable mechanical performance with high operational reliability.

Outline Drawing