SIRIUS 3RT2 contactors/contactor assemblies 
  2.7 Accessories 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
217 
4-pole reversing contactor assembly 
The illustrations below show how to mount the 4-pole reversing contactor assembly in size 
S0.  
Table 2- 71  Mounting the 4-pole reversing contactor assembly with screw-type connection (size S0) 
Step  Operating instruction  Figure 
1 / 2  Remove the 4th pin from one of the two 
contacts by releasing the snap hooks. 
 
3  Attach the 4th pin to the other side of the 
same contactor by hooking it into the 
openings on the contactor and snapping the 
pin to the contactor. 
 
4  Insert the connecting clips into the openings 
on contactor Q12. 
5  Secure the mechanical interlock on the left-
hand side of contactor Q12.