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NSYBVS500
NSYAS500
B
A
C
04662
A
system
Vertical busbars up to 3200 A
Flat bars, thickness 10mm
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).
Mobile bar support
04662.
Single busbar 1600 A (IP 31).
Number of copper bars and supports
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 IP 31
25 30 40 50 60 65 75 85
Single busbar
1200
1080
1 bar, 50 10
1400
1250
1 bar, 60 10
9
1800
1600
1 bar, 80 10
2050
1850
2 bars, 50 10 3
5
7
2300
2000
2 bars, 60 10
2820
2500
2 bars, 80 10
3200
2820
2 bars, 100 10
Note: The busbar permissible current level values are provided for an ambient temperature of 35 °C around
the panel.
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).
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
Bar wedging
The bottom support allows the bars to be installed and positioned. It does not count
as a bar support.
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
NSYAS500
NSYAS600
NSYAS800
NSYAS800L
Connection to a horizontal busbar, thickness 10 mm
Vertical busbar connection (2)
Horizontal bars Vertical bars
Reference
(1 bar/phase) to horizontal bars
L 80 mm
50/60 mm
04636
L 80 mm
50/60 mm
04636 + 04642
L 80 mm
80 mm
04637
L 80 mm
80 mm
04637 + 04642
(2 bars/phase) to horizontal bars
L 80 mm
50/80 mm
04637
L 80 mm
50/80 mm
04637 + 04642
(2) References
04636
and
04637
are delivered as a unit: 1 link per phase.
Busbar selection
Flat bars with width 1675 mm
Perforated copper bar
Reference
50 10 mm
04525
60 10 mm
04526
80 10 mm
04528
.
.
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