Link Modules - Siemens SIRIUS 3RT Series System Manual

6.9.3

Link modules

The SIRIUS modular system features link modules to facilitate combinations involving the
following devices:
● Motor starter protector and contactor
● Motor starter protector and soft starter
● Motor starter protector and solid-state contactor
Function
The link module establishes the electrical and mechanical connection between motor starter
protector and contactor/soft starter/solid-state contactor. There are three different types
according to connection system:
● Link module for devices with screw-type connection system
● Link module for devices with spring-loaded connection system
● Link module for hybrid connection
Versions
Table 6- 27 Link module versions
Connection Link module version
system
Screw-type Motor starter protector – contactor in size S00
connection
system
Motor starter protector – contactor in size S0 AC
Motor starter protector – contactor in size S0 DC
Motor starter protector – soft starter in size S00
Motor starter protector – soft starter in size S0
Motor starter protector – solid-state contactor
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
SIRIUS 3RA21/22 load feeders
6.9 Accessories
Order number
3RA1921-1D
3RA2921-1A
3RA2921-1B
611