SIRIUS 3RT2 contactors/contactor assemblies 
  2.7 Accessories 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
227 
Assembling the contactor assembly for star-delta (wye-delta) start with spring-loaded connection - 
size S0 
The mechanical interlock and the connecting clips are mounted and the function modules 
are plugged in in the same way as described for size S0 with screw-type connection. 
Table 2- 76  Assembling the contactor assembly for star-delta (wye-delta) start with spring-loaded 
connection (size S0) 
Step  Operating instruction  Figure 
1  Attach the wiring module for the neutral 
bridge to contactor Q12 from above. 
2  Attach the wiring module for connecting the 
main current paths to contactors Q11 and 
Q13 from above. 
 
3  Attach the wiring modules for connecting 
the main current paths to contactors Q13 
and Q12 from below.