Wiring; Wiring Conditions For Front Connectors - Siemens SIMATIC S7-300 Hardware And Installation Manual

Brief overview of front connectors
Table 7-3
Connectable cables
solid conductors
flexible conductors
•
Without wire end
ferrule
•
With wire end ferrule
Number of conductors per
terminal
Diameter of the conductor
insulation
Stripped length
Wire end ferrules to DIN
46228
•
Without insulating
collar
•
With insulating collar
S7-300 Programmable Controller Hardware and Installation
A5E00105492-02

Wiring conditions for front connectors

20-pin
No
2
0.25 mm to 1.5 mm
2
0.25 mm to 1.5 mm
1 conductor, or 2 conductors
up to 1.5 mm2 (total) in a
common wire end ferrule
max. 3.1 mm
6 mm
Version A, 5 mm to 7 mm
length
Version E, up to 6 mm long
Front connector
40-pin
No
2 2
0.25 mm to 0.75 mm
2 • 2
0.25 mm to 0.75 mm
•
Potential supply: 1.5 mm
1 conductor, or 2 conductors
2
up to 0.75 mm
common wire end ferrule
•
max. 2.0 mm for
40 conductors
•
max. 3.1 mm for 20
conductors
6 mm
Version A, 5 mm to 7 mm
length
Version E, up to 6 mm long

Wiring

2
2
2
(total) in a
7-3