Connecting 
  6.2 Wiring rules 
SCALANCE SC-600 
Operating Instructions, 10/2021, C79000-G8976-C453-04 
53 
 
WARNING 
Do not press the SELECT/SET button when there is an explosive atmosphere. 
6.2  Wiring rules 
When wiring use cables with the following AWG categories or cross sections. 
 
Screw/spring-loaded 
terminals 
sections for flexible cables ... 
with wire end ferrule with plastic 
ferrule** 
with wire end ferrule without plastic 
ferrule** 
with TWIN wire end ferrule** 
Stripped length of the cable 
Wire end ferrule according to DIN 46228 with plastic ferrule** 
* AWG: American Wire Gauge
 
** See note "Wire end ferrules" 
 
 
Use crimp shapes with smooth surfaces, such as provided by square and trapeze shaped 
crimp cross sections.
 
-shaped profile are unsuitable.