5.2.2
Connecting power supply to the motor
Power and motor connections
Fuse
Contactor
SINAMICS V10
3-phase AC 400V
Motor
L1
L2
L3
W
PE
PE
U
V
W
U
V
L3
L1
L2
Figure 5-15 Power and motor connections
CAUTION
Ensure that the appropriate fuses with specified current ratings are connected between the
power supply and the inverter (See table below for the type of recommended SIEMENS fuses
for different frame sizes. ). For detailed fuse specification, consult your local inverter
distributor or visit the SIEMENS website concerned.
Table 5-9
Types of SIEMENS line fuses (recommended)
Inverter variant
Inverter output power rating (kW)
Fuse type
Fuse current rating (A)
Frame Size A
0.55
3NA3803
10
0.75
3NA3803
10
1.1
3NA3803
10
1.5
3NA3803
10
Frame Size B
2.2
3NA3805
16
3
3NA3805
16
4
3NA3807
20
Frame Size C
5.5
3NA3807
20
7.5
3NA3810
25
11
3NA3814
35
Frame Size D
15
3NA3817
40
18.5
3NA3820
50
22
3NA3822
63
Installation
5.2 Electrical installation
SINAMICS V10
Operating Instructions, 08/2011, A5E03453178 (this is not an order number)
37
