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04662
NSYBVS500
NSYBAS500
B
A
A
A
A
C
Permissible current
level (A) for panel
No. of bars/phase
and section (mm)
No. of supports according to the rated
short-time withstand currents Icw (kA eff/1 s)
IP > 31
15
25
30
40
50
750
1 bar, 60 5
900
1 bar, 80 5
3
5
7
1250
2 bars, 60 5
1600
2 bars, 80 5
Note: The busbar permissible current level values are provided for an ambient temperature of 35 °C around
the panel.
Busbar configuration
The bars are supported by insulating supports: 3 fixed
supports (screwed to the framework) are compulsory.
If necessary, use additional mobile supports.
The bars are resting against a bottom support.
The table on this page shows:
• The number and section of the bars to be used
according to the permissible current level of
the busbar.
• The number of bar supports to be installed in
an enclosure according to the rated short-time
withstand current (Icw).
Number of copper bars and supports
Busbar selection
Flat bars with width 1675 mm
Bar supports: fixing directly on framework of 300-mm duct
3 fixed supports are compulsory for supporting the bars. If more than 3 supports are
required, use the mobile supports (additional).
Bar wedging
The bottom support allows the bars to be installed and positioned. It does not count
as a bar support.
Busbar with Icw 30 kA eff/1 s.
The bars are supported by 3 fixed supports (compulsory)
and 2 mobile supports.
B = max. 100 mm
A = max. 350 mm
C = max. 87.5 mm
Connection to a horizontal busbar, thickness 5 mm
Direct connection (centre-to-centre distance 75 mm)
For a busbar centre-to-centre distance of 75 mm, the bars must be completely overlapped
Drilling dimensions for the horizontal bars, thickness 5 mm.
Separation required between
bar coupling points to
guarantee the insulation
distances.
system
Vertical busbars up to 1600 A
Flat bars, thickness 5 mm
Perforated copper bar
Reference
60 5 mm
04516
80 5 mm
04518
Busbar centre-to-
centre distance
(mm)
Enclosure W300
Depth 500
Enclosure W300
Depth 600
Enclosure W300
Depth 800
Enclosure W300
Depth 800
75
75
75
115
Fixed support for
lateral flat busbar
NSYBVS500 NSYBVS600 NSYBVS800 NSYBVS800L
Mobile support
(additional)
04662
04662
04662
04678
Busbar
centre-to-centre
distance (mm)
Enclosure W300
Depth 500
Enclosure W300
Depth 600
Enclosure W300
Depth 800
Enclosure W300
Depth 800
75
75
75
115
Bottom support for
lateral flat busbar
NSYAS500
NSYAS600
NSYAS800
NSYAS800L
Note: When connecting 5-mm flat bars to a horizontal busbar, references
NSYAS●00
are not required.
Mobile bar support
04662.
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