Overcurrent Protection By Means Of Line Fuses Or Circuit-Breakers - Siemens SINAMICS Series Equipment Manual

7.2.3

Overcurrent Protection by Means of Line Fuses or Circuit-Breakers

The cables for the drive line-up power supply must be protected against overcurrents. NH, D,
and DO-type fuses with a gL characteristic or suitable circuit-breakers can be used for this
purpose.
Note
For use in networks capable of supplying a maximum of 36 kA rms at 480 Vac if the device
is protected by means of the UL-approved (JFHR2) semiconductor safety fuse specified in
the manual.
The devices have to be protected with semiconductor fuses in accordance with the Manual.
The following tables list the requirements regarding line fuses and circuit-breakers for the
Active Line Modules and Smart Line Modules.
Table 7-3 Requirements regarding line fuses and circuit-breakers for Active Line Modules
16 kW
I fuse 35 A
rated
I 0.2s >180 A
fuse
I 4s >130 A
fuse
I 10 s >100 A
fuse
I 240 s >60 A
fuse
Table 7-4 Requirements regarding line fuses and circuit-breakers for Smart Line Modules
I fuse
rated
I 0.2s
fuse
I 4s
fuse
I 10 s
fuse
I 240 s
fuse
See catalog D21.2.
Equipment Manuel for Booksize Power Modules
Manual, (GH2), Edition 06.2005, 6SL3097-2AC00-0BP2
36 kW
80 A
>360 A
>260 A
>200 A
>135 A
5 kW
16 A
>70 A
>50 A
>42 A
>30 A
7.2 Selection of devices required for operation of SINAMICS
55 kW
125 A
>450 A
>350 A
>250 A
>200 A
10 kW
35 A
>100 A
>80 A
>65 A
>45 A
Cabinet Configuration and EMC Booksize
80 kW
160A
>650 A
>505 A
>360 A
>280 A
16 kW
35 A
>180 A
>130 A
>100 A
>60 A
120 KW
250A
>865 A
>675 A
>480 A
>380 A
36 kW
80 A
>360 A
>260 A
>200 A
>135 A
7-5