Wiring Rules - Siemens SIMATIC S7-400 Hardware And Installation Manual

4.14

Wiring Rules

Lines and Tools
For wiring the S7-400 modules, there are some rules for the cables and for the tool
you use. Information on connecting an M7-400 module assembly can be found in
Section 8.5.
Rules for ... Power Supply
Conductor
cross-sections:
Outer diameter: 3 to 9 mm
Flexible cond. no
without wire end
ferrule
Flexible cond. with 230 VAC: flexible
wire end ferrule sheathed cable
3 1.5 mm
24 VDC:
24 VDC: flexible
sheathed cable
3 1.5 mm
individual wires
1.5 mm
No. of conductors 1
per terminal
Stripping length of 7 mm
single conductors
Wire end ferrules 230 VAC: with
insulating collar to
DIN 46228 E1,5-8
24 VDC: without
insulating collar to
DIN 46228, shape A,
short version
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
www.gkbpx.com
Crimp terminal
0.5 to 1.5 mm
no
2
2
or
2
1
5 mm
-
Wiring the S7-400
... Front Connectors
Screw-type Spring-type terminal
terminal
2 2
0.25 to 2.5 mm 0.08 to 2.5 mm
2
0.25 to 1.5 mm 0.25 to 1.5 mm
* *
1 1
8 to 10 mm without 8 to 10 mm without
ferrule ferrule
10 mm with ferrule 10 mm with ferrule
with or without with or without
insulating collar to insulating collar to
DIN 46228 Part 1 DIN 46228 Part 1 or
or 4, Shape A, 4, Shape A, normal
normal version version
2
2
4-25