Electrical Connection - Siemens SINAMICS S120 Equipment Manual

DC link components
8.2 Braking resistors
Figure 8-15 Dimension drawing braking resistor 50 kW/250 kW
8.2.4

Electrical connection

Recommended cable cross-sections:
● For 25/125 kW: 35 mm²
● For 50/250 kW: 50 mm²
Thermostatic switch
A thermostatic switch is installed to protect the braking resistor against overload. Its floating
contacts must be integrated in the fault chain on the line side.
Table 8- 7
Terminal
T1
T2
Max. connectable cross-section: 2.5 mm²
348
Thermostatic switch connection
Function
Thermostatic switch connection
Thermostatic switch connection
Technical specifications
Voltage: 240 VAC
Load current: Max. 10 A
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9