Product information

Gas-Insulated medium-voltage switchgear for secondary distribution

8DJH Compact switchgear is a factory-assembled, type-tested 3-pole metal-enclosed single-busbar switchgear for indoor installation. 8DJH Compact switchgear is used in public and industrial energy systems of the secondary distribution level.
8DJH Compact

- Up to 17.5 kV, 25 kA, 630 A busbar, 630 A feeder
- Up to 24 kV, 24 kA, 630 A busbar, 630 A feeder
- Metal-enclosed
- Gas-insulated
- Hermetically enclosed
- Factory-assembled, routine-tested according IEC 62 271-200
- Type-tested according IEC 62 271-100, -200

Customer's Benefit:
    - Security of Operation, Reliability
    - Maintenance-free Design
    - Personal Safety
    - Environmental Independence
    - Compactness 
    - Minimum Footprint  
    - Economy, Ecology    

Rated voltage
kV
7.2
12
15
17.5
24

Rated short-duration power-frequency withstand voltage

- phase-to-phase, phase-to-earth,  open contact gap
- across the isolating distance



kV
kV


20
23


28
32


36
39


38
45


50
60

Rated lightning impulse
withstand voltage

- phase-to-phase, phase-to-earth, open contact gap
- across the isolating distance


 

kV
kV


 

60
70


 

75
85


 

95
110


 

95
110


 

125
145

Rated frequency  
Hz
50/60
50/60
50/60
50/60
50/60
Rated normal current Ir for ring-main feeders
Rated normal current Ir for busbar
Rated normal current Ir for transformer feeders
A
A
A
400
630
200

630
200
or
630
200

630
200
630
630
200
Rated short-time withstand current Ik,1s, 50 Hz
Rated short-time withstand current Ik,3s, 50 Hz (design option)
Rated peak withstand current ,50 Hz 
Rated short-circuit making current Ima,50 Hz
up to kA
up to kA
up to kA
up to kA
25
20
63
63
25
20
63
63
25
20
63
63
25
20
63
63
20
20
50
50
Rated short-time withstand current Ik,1s, 60 Hz
Rated short-time withstand current Ik,3s, 60 Hz (design option)
Rated peak withstand current 60 Hz
Rated short-circuit making current,60 Hz
up to kA
up to kA
up to kA
up to kA
 
21
21
55
55
21
21
55
55
21
21
55
55
21
21
55
55
20
20
52
52
Dimension
Width 1)mm
Width 2)mm
Depth
mm
Height
mm
2 ring-main feeders,
1 transformer feeder
700
620
775
1,400
1,700
3 ring-main feeders,
1 transformer feeder
1,010
930
775
1,400
1,700
4 ring-main feeders,
2 transformer feeders
1,400
1,240
775
1,400
1,700
Width 1): design with IAC A FLR
Width 2): design with IAC A F
 
 
 
 
Design and construction
 
Partition Class:
PM (partition of metal)
Loss of service continuity category
LSC 2
Accessibility to compartments (enclosure) 
- Busbar compartment
- Switching-device compartment
- Cable compartment

Non-accessible
Non-accessible
Interlock-controlled
Internal arc classification 
 
Designation of the internal arc classification, IAC


IAC classification
Rated voltage 7.2 kV to 24 kV


IAC A FLR
IAC A F (tested with wall distance at the rear ≥3m;
Use in substations only in connection with internal arcing test according to IEC 62271-202) 

Type of accessibility A

- F
- L
- R

Switchgear in closed electrical service location, access "for authorized personnel only" (according to IEC/EN 62271-200)

Front
Lateral
Rear 

Arc test current 
Up to 21 kA                                             
Arc test current
1s
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