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04653
04662
B
A
C
A
A
A
system
Rear busbars up to 1250 A
Flat bars, thickness 5 mm
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 rest against one of the fixed supports by
means of a wedge screwed onto each bar.
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 according
to the rated short-time withstand current (Icw).
Busbar selection
Flat bars with width 1675 mm
Bar supports
3 fixed supports are compulsory for supporting the vertical busbars. If more
than 3 supports are required, use the mobile supports (additional).
Bar wedging
A metal wedge with thickness 5 mm is screwed onto the bar.
It rests against a fixed support and wedges the bar.
Connection to a horizontal busbar
Fixed bar support
04653.
Mobile bar support
04662.
Wedging: 1 bar/phase.
Wedging: 2 bars/phase.
Busbar with Icw 30 kA eff/1 s.
The bars are supported by 3 fixed supports, 04653 3
(compulsory), and 2 mobile supports, 04662 2.
B = max. 100 mm
A = max. 750 mm
C = max. 87.5 mm
Number of copper bars and supports
Permissible current
level (A) for panel
No. of bars/phase
and section (mm)
No. of supports according to rated short-
time withstand currents Icw (kA eff/1 s)
IP 31 IP > 31
15
25
30
40
50
800
750
1 bar, 60 5
1000
900
1 bar, 80 5
3
5
7
1400
1250
2 bars, 60 5
Perforated copper bar
Reference
60 5 mm
04516
80 5 mm
04518
Bar support
Reference
fixed for rear flat busbar
04653
mobile (additional)
04662
Wedge for bars
Reference
100 5-mm wedges for bars
04669
1600 A connection
Reference
to horizontal bars, thickness 5 mm
04635 (1) (2)
to horizontal bars,
thickness 10 mm
L 80 mm
04636 (1) (2)
L 80 mm
04636 (2) + 04642 (1)
(1) A part of the link must be made using insulated flexible bars.
(2) References
04635
and
04636
are delivered as a unit = 1 link per phase.
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.
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