Siemens Simatic S7-1500 - Wiring Rules

Wiring
8.4 Wiring rules
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
265
8.4 Wiring rules
Introduction
Use suitable cables to connect the S7-1500R/H redundant system. The tables below set out
the wiring rules for the R/H-CPUs and system power/load current supply.
R/H CPUs and system power/load current supply
Table 8- 2 Wiring rules for R/H-CPUs and system power/load current supply
Wiring rules for ... R/H-CPU System power/load current
supply
Permitted cable cross-sections of solid cables (Cu)
-
-
-
-
Permitted cable cross-
sections of flexible cables
(Cu)
Without wire-end fer-
rule
0.25 to 2.5 mm
2
0.5 to 2.5 mm
2
AWG
1)
: 24 to 14
AWG
1)
: 20 to 14
With end sleeve
0.25 to 1.5 mm
2
0.5 to 1.5 mm
2
AWG
1)
: 24 to 16
AWG
1)
: 20 to 16
Number of wires per connection
1
1
Stripped length of the wires
10 to 11 mm
7 to 8 mm
End sleeves according to
DIN 46228
Without plastic sleeve
Design A, 10 mm long
Design A, 7 mm long
With plastic sleeve
0.25 to 1.5 mm
2
Design E, 10 mm long
Design A, 7 mm long
Sheath diameter
-
8.5 mm
Tool
3 to 3.5 mm screwdriver, conic
design
3 to 3.5 mm screwdriver, conic
design
Connection system
Push-in terminal
Screw terminal
Tightening torque
-
From 0.5 Nm to 0.6 Nm
1)
American Wire Gauge