Siemens SIRIUS 3RT - Page 256

Accessories
9.3 Auxiliary switch blocks
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
256 Manual, 09/2017, A5E03656507120A/RS-AE/006
The table below depicts the auxiliary switch blocks for mounting on the front, which can be
used across the board for contactors of sizes S00 to S3.
Table 9- 5 Auxiliary switch blocks for mounting on the front
Design of the auxiliary switch
block
Connection system
Article number
1/2/3/4-pole auxiliary switch
blocks; partial labeling
Screw-type/spring-loaded connection 3RH2911-.HA..
3RH2911-.FA..
4-pole auxiliary switch blocks; full
labeling
Screw-type/spring-loaded connection 3RH2911-.XA..-0MA0
4-pole auxiliary switch blocks for
auxiliary contactors; full labeling
Screw-type/spring-loaded connection 3RH2911-.GA..
1)
1/2-pole auxiliary switch blocks,
cable entry from top or bottom,
full labeling
Screw connection 3RH2911-1AA..
3RH2911-1BA..
3RH2911-1LA..
3RH2911-1MA..
1/2-pole solid-state-compatible
auxiliary switch blocks, partial
labeling
Screw-type/spring-loaded connection 3RH2911-.NF..
2/4-pole auxiliary switch blocks
(with make-before-break); partial
labeling
Screw-type/spring-loaded connection 3RH2911-.FB..
3RH2911-.FC..
1)
Can only be used for 3RH21 contactor relays
The table below depicts the size-specific auxiliary switch blocks for lateral mounting.
Table 9- 6 Laterally mountable auxiliary switch blocks
Design of the auxiliary switch
block
Connection system
Article number
2-pole auxiliary switch blocks; full
labeling for motor contactors size
S00
Screw-type/spring-loaded connection 3RH2911-.DA..
2-pole auxiliary switch blocks; full
labeling
Screw-type/spring-loaded connection 3RH2921-.DA..
2-pole solid-state-compatible
auxiliary switch blocks; full
labeling for motor contactors size
S00
Spring-loaded connection 3RH2911-2DE..
2-pole solid-state-compatible
auxiliary switch blocks; full
labeling
Spring-loaded connection 3RH2921-2DE..