Siemens SINAMICS G120D - Branch Circuit Protection of Individual Inverters

Installation
3.9 Branch circuit protection of individual inverters
SINAMICS G120D converter
30 Getting Started, 07/2016, FW V4.7 SP6, A5E38556189B AA
3.9
Branch circuit protection of individual inverters
When you install a dedicated 400 V branch for each inverter, then you must individually
fuse/protect each branch.
Image 3-8 Power supply to inverters through their own dedicated 400 V branch
Branch circuit protection according to the IEC standard
Table 3- 2 Branch circuit protection according to the IEC standard
Rated power
Power Module
Frame
size
Article No.
Max. rated
current of the
protection de-
vice
Fuse
Circuit-breaker
0.75 kW
6SL3525-0PE17-5AA1
FSA 3NA3803 3RV2011-1JA10 10 A
1.5 kW
6SL3525-0PE21-5AA1
3 kW
6SL3525-0PE23-0AA1
FSB
3NA3805
3RV2011-4AA10
16 A
4 kW
6SL3525-0PE24-0AA1
FSC 3NA3807 3RV2021-4BA10 20 A
5.5 kW
6SL3525-0PE25-5AA1
7.5 kW
6SL3525-0PE27-5AA1
3NA3812
3RV2021-4PA10
32 A