4.2.8
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.
Figure 4-8
Branch circuit protection according to the IEC standard
Table 4- 2
Rated power
0.75 kW
1.5 kW
3 kW
4 kW
5.5 kW
7.5 kW
Converter with the control units CU240D-2
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
Power supply to inverters through their own dedicated 400 V branch
Branch circuit protection according to the IEC standard
Power Module
6SL3525-0PE17-5AA1
6SL3525-0PE21-5AA1
6SL3525-0PE23-0AA1
6SL3525-0PE24-0AA1
6SL3525-0PE25-5AA1
6SL3525-0PE27-5AA1
Frame
Article No.
size
Fuse
Circuit-breaker
FSA
3NA3803
3RV2011-1JA10
FSB
3NA3805
3RV2011-4AA10
FSC
3NA3807
3RV2021-4BA10
3NA3812
3RV2021-4PA10
Installation
4.2 Electrical Installation
Max. rated
current of the
protection de-
vice
10 A
16 A
20 A
32 A
45