Siemens SIRIUS 3RT - Page 143

Configuration
6.12 Operation of a motor in two directions of rotation (reversing contactor assembly)
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
143
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 6- 5 Auxiliary switch combination options for the 3RA23 reversing contactor assembly
3RA23 reversing contactor assembly
Size Possible
versions
Front
Lateral
1-pole 4-pole 2-pole
S00 / S0 /
S2 / S3
1
0
2
0
2
2
0
2
Kit for reversing contactor assemblies of sizes S6 to S12
The following accessories for the basic units can also be used for the reversing contactor
assemblies:
● Auxiliary switch blocks (on the front, on the side)
● Surge suppressors
The following accessories are provided especially for the reversing contactor assemblies:
● Mechanical interlocks
● Mechanical connectors
● Wiring modules, top and bottom
● Base plates