Air-insulated medium-voltage switchgear 8BT1

Compact design and simple construction

Worldwide, air-insulated technology has served as a basis for an established, reliable power supply for more than 100 year. 8BT1 air-insulated medium-voltage switchgear can be used in transformer and switching substations.

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8BT1 catalog

Your benefits at a glance

Product information

Air-insulated switchgear for primary distribution

Switchgear type 8BT1 is a factory-assembled, type-tested switchgear for indoor installation according to IEC 62 271-200 and VDE 0671-200. It's mainly used for power distribution. Eco-friendly thanks to air as insulating medium and the use of vacuum technology!
Rated voltage
kV
up to
7.2
12
24
Rated frequency
Hz
 
50
50
50
Rated short-duration power-frequency withstand voltage
kV
up to
20
50
28
Rated lightning impulse withstand voltage
kV
up to
60
125
75
Rated short-time withstand current, 3s
kA
up to
25
25
25
Rated peak withstand current 50 Hz
kA
up to
63
63
63
Rated short-circuit breaking current
kA
up to
25
25
25
Rated short-circuit making current 50 Hz / 60 Hz
kA
up to
63
63
63
Rated normal current of busbar
A
up to
2000
2000
2000
Rated normal current of feeders
- with circuit-breaker
- with switch-disconnector
- with switch-disconnector with fuses
A
up to

2000
630
200

2000
630
200

2000
630
200
Degree of protection - enclosure
Degree of protection - between compartment
 
 
IP 4X
IP 2X
IP 4X
IP 2X
IP 4X
IP 2X
Dimension
- Width
- Depth
- Height

mm
mm
mm
 

600/800
1200
2050

600/800
1200
2050

800
1200
2050
Classification according to IEC 62271-200
 
Partition class
PM (partition of metal)
Loss of service continuity category panels
LSC2A
Accessibility of compartments (enclosure):
- Busbar compartment
- Switching device compartment
- Connection compartment, front connection

tool-based
interlock-controlled
interlock-controlled
Internal arc classification
 
- Wall standing arrangement up to 24 kV
 
- Free standing arrangement up to 24 kV 
IAC A FLR up to 25 kA, 1s

IAC A FLR up to 25 kA, 1s
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Here you find all the information and documents on the air-insulated medium-voltage switchgear 8BT1:

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