SIRIUS 3RT2 contactors/contactor assemblies   
2.6 Connection 
  SIRIUS Innovations 
154  System Manual, 01/2011, A8E56203870002-03 
Solder pin connection  
For applications where the contactors are to be soldered onto a PCB directly, a solder pin 
adapter is available for SIRIUS size S00 contactors up to 5.5 kW or 12 A. 
Devices with a solder pin connection have the following properties: 
●  The terminals are suitable for a 1-conductor connection. 
●  All connections can be accessed from the front and are clearly arranged. 
●  A maximum of 2 conductors with a cross-section of 0.25 mm
2
 to max. 2.5 mm
2
 can be 
used at each connection point. 
Reference 
 
More information ...  Can be found in the chapter titled ... 
About the solder pin adapter and how to mount it 
on a motor/contactor relay (size S00) 
Solder pin adapter (Page 193) 
2-conductor connection  
2 conductor ends can be connected to every main, auxiliary, and control circuit connection. 
These connections are also suitable for untreated conductors, which may have varying 
cross-sections. This connection system offers numerous benefits, including laying the 
foundations for problem-free looping through and parallel connection without intermediate 
terminals. 
Conductor cross-sections 
 
More information ...  Can be found in the chapter titled ... 
About conductor cross-sections  Technical data (Page 228)