Siemens SINAMICS G115D Operating Instructions Manual page 66

Wiring
4.9 Connecting the line supply
For the daisy-chain line supply connection of the motor-mounted converters, make sure that
you connect two cable lugs per terminal as recommended below to ensure reliable electrical
connectivity:
Maximum current limit for daisy-chain connection
The maximum permissible number of daisy-chained converters depends on the maximum
current limit for daisy-chain connection. The table below gives the maximum current limits
dependent upon the cable cross-sections and surrounding air temperature:
Converter
Motor-mounted
converter
Wall-mounted
converter
Further information on protective devices
For both connector and glanded variants, the input for the daisy chained converters can be
protected by group fusing.
For more information about the permissible types of the group fusing, see the SINAMICS
G115D Product Information of Protective Devices:
Protective devices (https://support.industry.siemens.com/cs/ww/en/ps/27867/man)
64
IEC-compliant cable
23 A @ 4 mm , 40 °C
2
16 A @ 4 mm , 55 °C
2
25 A @ 6 mm , 40 °C
2
21 A @ 6 mm , 50 °C (FSA)
2
21 A @ 6 mm , 55 °C (FSB)
2
Operating Instructions, 09/2020, FW V4.7 SP13, A5E48681219B
UL-compliant cable
Connector variant
16 A @ 10 AWG, 40 °C
11 A @ 10 AWG, 55 °C
24 A @ 9 AWG, 40 °C
16 A @ 9 AWG, 50 °C (FSA)
16 A @ 9 AWG, 55 °C (FSB)
SINAMICS G115D distributed drive
Glanded variant
16 A @ 10 AWG, 40 °C
13 A @ 10 AWG, 45 °C
12 A @ 10 AWG, 48 °C
16 A @ 9 AWG, 40 °C
13 A @ 9 AWG, 45 °C
12 A @ 9 AWG, 48 °C