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Functional system
Prefabricated connections
The insulated flexible bars are tested in a type-tested switchboard environment.
Their design takes into account the switchboard architecture where they are often in
close proximity to a protection device (circuit breaker or fuse) with significant heat
losses.
The sizes for the flexible bars indicated below take into account the heat losses of
Schneider Electric devices in a Prisma switchboard.
Characteristics
Length
1800 mm
Rated insulation voltage (Ui)
1000 V
Insulated flexiblebars
Connection between device busbar
The flexible bars are determined taking into account the connected device, whatever
the internal temperature of the switchboard.
The bar sizes indicated below take into account the derating curves of devices.
Devices
Size (mm)
Catalogue numbers
NSX100
20 x 2
04742
NSX160/250
20 x 3
(1)
04743
NSX400
32 x 5
04751
NSX630
32 x 8
04753
INS125/160
20 x 2
04742
INS250
20 x 3
04743
INS400
32 x 5
04751
INS630
32 x 6
04752
200 A Linergy FM
20 x 3
04743
Fupact 250
24 x 5
04746
Fupact 400
32 x 5
04751
Fupact 630
32 x 8
04753
Easypact CVS100
20 x 2
04742
Easypact CVS160/250
20 x 3
04743
Easypact CVS400
32 x 5
04751
Easypact CVS630
32 x 8
04753
(1)
To connect a Compact NSX250 to Linergy BW busbars, use a 24 x 5 mm flexible bar (04746).
Note:
the references 87646 (3P) and 87647 (4P) can be used up to 250 A, when binding of
insulated flexible bars, to withstand Isc.
Connection between busbars
Flexible bars are designed for connections between busbars taking into account
the following characteristics:
b
b
a maximum temperature of 60 °C inside the switchboard. This corresponds to the
average temperature inside a switchboard for an ambient temperature of 35 °C
b
b
the maximum withstand temperature for the insulating material is 125 °C.
Ie
(1)
max
Size (mm)
Catalogue numbers
200 A
20 x 2
04742
250 A
20 x 3
04743
400 A
24 x 5
04746
520 A
32 x 5
04751
580 A
32 x 6
04752
660 A
32 x 8
04753
(1)
Rated operational current.
Designing connections
> page 179
DD381659.eps
DD382008.eps
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