Siemens Sivacon S8 Planning Information page 39

Combination of mounting designs
The different mounting designs can be combined in a
cubicle as shown in Fig. 4/3.
Fig. 4/3: Combination options for universal mounting design
Vertical distribution busbar
The vertical distribution busbars with the phase conductors
L1, L2, L3 are arranged on the left at the back of the cubi-
cle. The PE, N or PEN busbars are arranged in the cable
Tab. 4/2: Ratings of the vertical distribution busbar
Distribution busbar
Cross section
Rated current at 35 °C ambient
temperature
Rated short-time withstand
current I 2)
(1 sec)
cw
1)
Top main busbar position
2) Rated conditional short-circuit current I
36 SIVACON S8 Planning Principles – Universal mounting design
SIEMENS
SIVACON
A
Profile bar
2
400 mm
Ventilated 905 A
Non-
830 A
ventilated
65 kA
= 150 kA
cc
* Frame height 2,000 mm
connection compartment. In the case of 4-pole feeders, the
N conductor is allocated to the phase conductors L1, L2, L3
at the back of the cubicle. Ratings are stated in Tab. 4/2.
1)
Flat copper
2
650 mm 1 x (40 mm x 10 mm)
1,100 A 865 A
1,000 A 820 A
65 kA 65 kA
2 x (40 mm x 10 mm)
1,120 A
1,000 A
65 kA