GW1 12kV High Voltage Disconnect Switch

The GW1-12G(D) outdoor disconnect switch adopts a double-column vertical opening structure and is suitable for outdoor power distribution networks with rated voltage up to 12kV and frequency of 50/60Hz. It is widely used in:

• substations,
• overhead distribution lines,
• transformer isolation systems,
• industrial power distribution networks.

The switch can be equipped with:

• manual operating mechanism,
• motorized operating mechanism,
• grounding switch (“D” type),
• anti-pollution insulation design.

The “D” model includes an integrated grounding knife switch for enhanced maintenance safety.

Main Features

• Rated voltage: 12kV
• Outdoor installation type
• Double-column vertical break structure
• Visible isolation gap
• Manual or motorized operation
• Optional grounding switch
• Reliable mechanical interlocking
• Strong anti-pollution capability
• Suitable for harsh outdoor environments

Technical Specifications

Model Meaning

Typical models include:

• GW1-12G/400
• GW1-12G/630
• GW1-12GD/630-20
• GW1-12G(D)/1250-31.5

Meaning:

• GW = Outdoor disconnect switch
• 1 = Design serial number
• 12 = Rated voltage (kV)
• G = Improved outdoor type
• D = With grounding switch
• 400 / 630 / 1250 = Rated current (A)
• 20 / 31.5 = Short-time withstand current (kA)

Working Conditions

• Altitude: ≤2000m
• Ambient temperature: -40°C to +40°C
• Wind speed: ≤35m/s
• Earthquake intensity: ≤8 degree
• Suitable for polluted outdoor environments
• Installation site should be free from:
  • explosive substances,
  • severe vibration,
  • corrosive gases.

Applications

• Outdoor substations
• Overhead transmission and distribution lines
• Rural power grids
• Transformer isolation systems
• Renewable energy distribution systems
• Industrial outdoor switchyards

Product Advantages

Reliable Outdoor Operation

Designed for stable long-term operation under rain, dust, UV exposure, and pollution conditions.

Visible Isolation

Provides a clear visible break for maintenance safety and operational inspection.

Flexible Operating Mechanism

Supports manual or motorized operation for local or remote control applications.

Anti-Pollution Design

Optional pollution-resistant insulators improve performance in coastal and industrial areas.

Outline Dimension