SIRIUS 3RT2 contactors/contactor assemblies 
  2.4 Configuration 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
133 
Auxiliary switch blocks  
The 3RA23 reversing contactor assembly can be fitted with various auxiliary switches (on the 
front or laterally). A maximum of 8 auxiliary contacts are permitted per reversing contactor 
assembly: 
Table 2- 12  Auxiliary switch combination options for the 3RA23 reversing contactor assembly 
3RA23 reversing contactor assembly 
On the front  Lateral 
1-pole  4-pole  2-pole 
Size   Possible 
versions 
 
 
 
1  0  2  0 S00/S0 
2  2  0  2 
 
Main circuit (sizes S00 and S0)  
L1
L2
L3
  M      
3 ~
F3
Q12Q11
F0
F1
1
2
U1 V1 W1
3
5
4
6
1
2
3
5
4
6
 
Figure 2-9  Main circuit of the reversing contactor assembly (sizes S00 and S0)