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Prisma Plus PH System - Schneider Electric

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DD384396<br />

DD384397<br />

DD384398<br />

Distribution<br />

Catalogue numbers<br />

The bars are secured by insulated supports attached to<br />

the framework.<br />

The tables opposite indicate:<br />

b the number and size of the bars to be used,<br />

depending on the permissible current level in the<br />

busbars<br />

b the number of busbar supports for each type of<br />

framework, depending on:<br />

v the size of the busbars<br />

v the rated short-time withstand current Icw.<br />

For more information on busbar calculations, see<br />

DESW016.<br />

The modularity of the busbar is 3 modules.<br />

Fixed support and free support.<br />

Joints.<br />

NYBSHS500<br />

DD381226<br />

Horizontal busbars<br />

Up to 1600 A<br />

Flat copper bars 5 mm thick<br />

Busbar calculation<br />

Number and size of copper busbars<br />

Permissible current (A) No. of bars/phase<br />

IP55<br />

750 1 bar 60 x 5<br />

900 1 bar 80 x 5<br />

1250 2 bars 60 x 5<br />

1600 2 bars 80 x 5<br />

Note: the permissible current values for the busbars are given for an ambient temperature of<br />

35 °C around the switchboard.<br />

Number of supports<br />

Framework width Size of bars (mm) No. of supports lcw (kA rms/1 s)<br />

(mm)<br />

y 15 y 25 y 30 y 40 y 50<br />

W 700 mm 1 bar 60 x 5<br />

1 bar 80 x 5<br />

2 bars 60 x 5<br />

2 bars 80 x 5<br />

2 3<br />

W 300 mm All sizes 1 2<br />

Busbar selection<br />

Flat busbars, W 2000 mm<br />

Designation Cat. no.<br />

Copper bar without holes, 60 x 5 04536<br />

Copper bar without holes, 80 x 5 04538<br />

Busbar supports<br />

Two fixed supports for 700 mm wide frameworks and one fixed support for 300 mm<br />

wide frameworks are mandatory. If more supports are required, use free supports.<br />

Designation Cubicle W 700 Cubicle W 300<br />

D 500 D 500 D 800<br />

Distance between busbar centres 75 75 75<br />

Fixed support for horizontal bars 04664 NSYBHS500 NSYBHS800<br />

Free support (additional) 04662 04662 04662<br />

04664 04662<br />

Joints<br />

Designation Cat. no.<br />

1 joint for bars W 60 mm 04640<br />

W 80 mm 04641<br />

Note: when installed at the bottom of cubicles, the busbars must be partitioned, see<br />

page 401F22905.indd/2.<br />

401F_E22110.indd version: 1.0 - 06/2010<br />

1<br />

DD381225

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