SIRIUS 3RA28 function modules for mounting on 3RT2 contactors 
  7.6 Mounting 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
663 
Mounting the function module for star-delta (wye-delta) start 
 
Step  Operating instruction  Figure 
1  Check that the interlock slide is 
engaged in the uppermost position. 
2  Release the cover cap on the interface 
connection. 
3  Remove the cover cap for the interface 
connection from the connector by lifting 
it up and out. 
4  Attach the basic module/coupling 
module to the contactor from the front. 
To do this, insert the contacts into the 
openings on the contactor.