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Home/Disconnector Switch/Isolator/Indoor Disconnector Switch/Isolator/GN19-12/400 Indoor High Voltage Disconnect Switch 12kV 400A GN19-12/400 Indoor High Voltage Disconnect Switch 12kV 400A
The GN19-12/400 indoor disconnect switch is designed for use in medium voltage switchgear and distribution systems with a rated voltage of 12kV and a rated current of 400A. It provides a reliable means of isolating electrical circuits during maintenance or inspection, ensuring safety and operational stability.
With its compact structure, strong insulation performance, and manual operating mechanism, the GN19-12/400 switch is widely used in power plants, substations, and industrial electrical systems.
Electrical ProductsKey Features of GN19 indoor disconnect switch
Rated voltage: 12kV, rated current: 400A
Rated short-time withstand current: 31.5kA
3-pole structure with 210 mm phase-to-phase distance
High mechanical strength and reliable operation
Manual operating mechanism for ease of use
Compact design, suitable for indoor installation
Excellent insulation with epoxy resin support insulators
Use environmental conditions of GN19 disconnect switch
1. The upper limit of ambient temperature +40℃, the lower limit -l0℃, Note: Allow storage and transportation at -25℃
2. Altitude not more than 1000m
3. Relative humidity: daily average is not more than 95%, monthly average is not more than 90%
4. Water vapor pressure: the daily average is not more than 2.2 × 10-3Mpa, the monthly average is not more than 1.8 × 10-3Mpa
5. The surrounding air should be free from corrosive or combustible gases, water vapor and other obvious pollution.
6. No regular and violent vibration.
Note: Please consult with the manufacturer to solve the problem if it is not in line with the above conditions
Technical parameters of GN19 disconnect switch
Model meaning
|
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
|
Dimensions of GN19 disconnect switch
Applications
Medium voltage switchgear assemblies
Power distribution systems in substations
Industrial electrical networks
Power plants and utility facilities
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