Siemens SINAMICS S120 Combi - Connectable Cable Cross-Sections for Spring-Loaded Terminals; Connectable Cable Cross-Sections for Screw Terminals

Cabinet design and EMC
12.5 Connection system
SINAMICS S120 Combi
288 Manual, 11/2017, 6SL3097-4AV00-0BP7
Example for dimensioning a power cable
Boundary conditions
:
Module: S120 Combi 4 axes Power Module with 20 kW infeed
Rated input current at 400 V
AC
: 34 A (from the technical data)
Ambient temperature: 45° C
Laying method: B2
Calculation/dimensioning
:
With laying method B2 and a rated input current of 34 A
AC
, from the table showing the
current-carrying capacity, a cable cross-section of 10 mm
2
is obtained.
With a derating factor of 0.91 for 45° C ambient temperature, the current-carrying capacity of
the selected power cable decreases to 36.4 A.
Result
:
Under the given boundary conditions, a power cable with a cross-section of 10 mm
2
can be
used.
12.5.4
Connectable cable cross-sections for spring-loaded terminals
Table 12- 11 Spring-loaded terminals
Type: Spring-loaded terminal
1
Connectable cable cross-sections
Flexible
0.08 … 2.5 mm
2
Stripped length 8 … 9 mm
Tool
Screwdriver 0.4 x 2.0 mm
12.5.5
Connectable cable cross-sections for screw terminals
The type of screw terminal can be taken from the interface description of the particular
module.
Table 12- 12 Screw terminals
Type: Screw terminal
1 Connectable cable cross-sections Rigid, flexible
With end sleeve, without plastic sleeve
With end sleeve, with plastic sleeve
0.08 … 1.5 mm
2
0.25 … 1.5 mm
2
0.25 … 0.5 mm
2
Stripped length
7 mm
Tool
Screwdriver 0.4 x 2.0 mm
Tightening torque
0.22 … 0.25 Nm
2 Connectable cable cross-sections Rigid, flexible
With end sleeve, without plastic sleeve
With end sleeve, with plastic sleeve
0.14 … 1.5 mm
2
0.25 … 1.5 mm
2
0.25 … 0.5 mm
2
Stripped length
7 mm
Tool
Screwdriver 0.4 x 2.5 mm
Tightening torque
0.22 … 0.25 Nm