Power Connections - Siemens SINAMICS Series Operating Instructions Manual

For 15 A to 125 A, the following applies:
The fuses are not integrated in the device. The externally required semiconductor fuses
1NE1... are also suitable for the conductor protection.
For 210 A to 850 A, the following applies:
The fuses are not integrated in the device. The externally required semiconductor fuses are
not suitable for the conductor protection. Fuses for the conductor protection must be
provided separately.
For 900 A to 3000 A, the following applies:
The required semiconductor fuses are integrated in the device and external fuses must be
provided for the conductor protection.
6.4

Power connections

Explanations for the connection diagrams
G
K
a
b
c
Firing cables (G, K):
In devices with a rated armature supply voltage of < 690 V:
Betatherm 145, 0.5 mm
In devices with a rated armature supply voltage of ≥ 690 V:
Radox 125, 0.75 mm
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
Gate cables
Cathode cables
Copper/aluminum busbar
Copper/aluminum busbar
Raychem 44A0311-20-9
, UL
2
2
Cable ends are marked as specified.
Connecting
6.4 Power connections
123