Gas-insulated medium-voltage switchgear 8DA/B - The Modular Power Pack

8DAB

Rated voltage up to

40.5 kV
  • - Rated short-time withstand current up to 40 kA

  • - Rated normal busbar current up to 5000 A

  • - Rated normal feeder current up to 3150 A

  • Traction power supply systems

  • - Rated short-time withstand current up to 31.5 kA

  • - Rated normal busbar current up to 3150 A

  • - Rated normal feeder current up to 2500 A

Product information

Gas-insulated medium-voltage switchgear for primary distribution

The Siemens 8DA and 8DB range of fixed circuit-breaker switchgear for indoor installation comprises several factory-assembled, type-tested, models of compact gas-insulated medium-voltage switchgear. All models are single-pole metal-enclosed  and equipped with metallic partitions to ensure reliable operation and a high degree of personal as well as operational safety. The Siemens 8DA10 gas-insulated switchgear model is suitable for single-busbar applications. The Siemens 8DB10 gas-insulated switchgear model suits to double-busbar applications, the 8DA11 and 8DA12 single and double pole design is for traction power supply systems.

Gas-insulated medium-voltage switchgear up to 40.5 kV, 40 kA (3s)

- up to 5000 A busbar, up to 3150 A feeder
- Metal-enclosed
- Single-busbar system
- Hermetically enclosed
- Factory-assembled, routine-tested according to IEC 62 271-200
- Type-tested according to IEC 62 271-200
 

Benefits:
- Safe, secure, and reliable operation

- Personal safety
- Environmental independence
- Compactness
- Maintenance-free design
- Cost-efficiency

- High environmental compatibility  

Rated voltage
 kV
12 
 24
36
40.5
Rated frequency
Hz
50/60
50/60
50/60
50/60
Rated short-duration power-frequency withstand voltage
kV
20
50
70
85
Rated lightning impulse withstand voltage
kV
75
125
170
185
Rated peak withstand current
kA
100
100
100
100 
Rated short-circuit making current
kA
100
100
100
100
Rated short-time withstand current, 3 s
kA
40
40
40 
40 
Rated short-circuit breaking current
kA
40
40
40
40
Rated normal current of busbar
5000
5000
5000
5000
Rated normal current of feeder
3150 
3150 
3150 
3150 
Degree of protection -  Primary part
Degree of protection - Secondary part 
 
IP65
IP3XD 
IP65
IP3XD 
IP65
IP3XD 
IP65
IP3XD 
Dimension
- Width
- Depth
- Height (Standard)

mm
mm
mm

600
1625
2350

600
1625
2350

600
1625
2350

600
1625
2350

Classifikation according to IEC 62271-200
 
Partition Class:
PM 
Loss of service continuity
category:

LSC 2
Accessibility of Compartments:
- Busbar compartment:
- Switching device compartment:
- Low-voltage compartment:
- Cable compartment: 

tool-based
tool-based
tool-based
tool-based 
Internal arc classification
IAC A FLR 40 kA 1s 

Gas-insulated medium-voltage switchgear up to 40.5 kV, 40 kA (3s)

- up to 5000 A busbar, up to 2500 A feeder (3150 A on request)
- Metal-enclosed
- Double-busbar system
- Hermetically enclosed
- Factory-assembled, routine-tested according to IEC 62 271-200
- Type-tested according to IEC 62 271-200


Benefits:

- Safe, secure, and reliable operation

- Personal safety
- Environmental independence
- Compactness
- Maintenance-free design
- Cost-efficiency

- High environmental compatibility  

Rated voltage
 kV
12 
 24
36
40.5
Rated frequency
Hz
50/60
50/60
50/60
50/60
Rated short-duration power-frequency withstand voltage
kV
20
50
70
85
Rated lightning impulse withstand voltage
kV
75
125
170
185
Rated peak withstand current
kA
100
100
100
100 
Rated short-circuit maging current
kA
100
100
100
100
Rated short-time withstand current, 3 s
kA
40
40
40 
40 
Rated short-circuit breaking current
kA
40
40
40
40
Rated normal current of busbar
5000
5000
5000
5000
Rated normal current of feeder
2500/3150* 
2500/3150* 
2500/3150* 
2500/3150* 
Degree of protection -  Primary part
Degree of protection - Secondary part 
 
IP65
IP3XD 
IP65
IP3XD 
IP65
IP3XD 
IP65
IP3XD 
Dimension
- Width
- Depth
- Height (Standard)

mm
mm
mm

600
2665
2350

600
2665
2350

600
2665
2350

600
2665
2350

* 3150 A on request


Classifikation according to IEC 62271-200
 
Partition Class:
PM 
Loss of service continuity category:
LSC 2
Accessibility of Compartments:
- Busbar compartment:
- Switching device compartment:
- Low-voltage compartment:
- Cable compartment: 

tool-based
tool-based
tool-based
tool-based 
Internal arc classification
IAC A FLR 40 kA 1s 

Gas-insulated medium-voltage switchgear up to 40.5 kV, 31.5 kA (3s)

- up to 3150 A busbar, up to 2500 A feeder
- Metal-enclosed
- Single-pole and double-pole design
- Hermetically enclosed
- Factory-assembled, routine-tested according to IEC 62 271-200
- Type-tested according to IEC 62 271-200
 

Benefits:
- Safe, secure, and reliable operation

- Personal safety
- Environmental independence
- Compactness
- Maintenance-free design
- Cost-efficiency

- High environmental compatibility  

Rated voltage
 kV
17.25
 27.5
Rated frequency
Hz
16.7
50/60
Rated short-duration power-frequency withstand voltage
- Earth
- Isolation
kV

50
60

95
110
Rated lightning impulse withstand voltage
- Earth
- Isolation
kV

125
145

200
220
Rated short-circuit making current
kA
80
80
Rated short-circuit breaking current
kA
31.5
31.5
Rated normal current of busbar
3150
3150
Rated normal current of feeder
2500
2500
Degree of protection -  Primary part
Degree of protection - Secondary part 
 
IP65
IP3XD 
IP65
IP3XD 
Dimension
- Width
- Depth (1-pole / 2-pole)
- Height (Standard)

mm
mm
mm

600
865/1245
2350

600
865/1245
2350
Classifikation according to IEC 62271-200
 
Partition Class:
PM 
Loss of service continuity
category:

LSC 2
Accessibility of Compartments:
- Busbar compartment:
- Switching device compartment:
- Low-voltage compartment:
- Cable compartment: 

tool-based
tool-based
tool-based
tool-based 
Internal arc classification
IAC A FLR 31.5 kA 1s 
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