Air-insulated medium-voltage switchgear 8BT2

Robust and reliable design

Worldwide, air-insulated technology has served as a basis for an established, reliable power supply for more than 100 year. 8BT2 air-insulated medium-voltage switchgear has been launched by Siemens on the Turkish market in 2001. Upon reflecting on the global need for a product at 36kV voltage level, manufacturing of 8BT2 has begun in Mexico too and has been adapted to the specific market requirements of the different industries and power supply companies.

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8BT2 catalog

Your benefits at a glance

Product information

Air-insulated switchgear for primary distribution

8BT2 is a metal-enclosed, factory-assembled and type-tested medium-voltage switchgear according to IEC 62271-200 for indoor application up to 36 kV. Loss of service continuity is category LSC 2B and partition class PM. 8BT2 is internal arc classified switchgear according to IAC A FLR up to 31.5 kA for 1 s arc duration. 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
36
Rated frequency
Hz
 
50/60
Rated short-duration power-frequency withstand voltage
kV
up to
70
Rated lightning impulse withstand voltage
kV
up to
170
Rated short-time withstand current, 3s
kA
up to
31.5
Rated peak withstand current 50 Hz / 60 Hz
kA
up to
79 / 82
Rated short-circuit breaking current
kA
up to
31.5
Rated short-circuit making current 50 Hz / 60 Hz
kA
up to
79 / 82
Rated normal current of busbar
A
up to
3150
Rated normal current of feeders
A
up to
3150
Degree of protection - enclosure
Degree of protection - between compartment
 
 
IP4X
IP2X
Dimension
- Width
- Depth (FL)
- Depth (FLR)
- Height

mm
mm
mm
mm
 

1200
2450
2700
2400
Classification according to IEC 62271-200
 
Partition class
PM (partition of metal)
Loss of service continuity category panels
LSC2B
Accessibility of compartments ( enclosure):
- Busbar compartment
- Switching device compartment
- Low-voltage compartment
- Cable compartment:
     Front access
     Rear access (in FLR only)

tool-based
interlock-controlled
tool-based

interlock-controlled and tool-based
tool-based
Internal arc classification
 
- Wall standing arrangement 36 kV
 
- Free standing arrangement 36 kV 
IAC A FL up to 31.5 kA, 1s

IAC A FLR up to 31.5 kA, 1s
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Here you find all the information and documents on the air-insulated medium-voltage switchgear 8BT2:

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