SIRIUS 3RT2 contactors/contactor assemblies 
  2.7 Accessories 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
193 
2.7.11  Solder pin adapter 
2.7.11.1  Description 
The solder pin adapter can be used to solder standard contactors in size S00 up to 
5.5 kW/12 A onto PCBs.  
Table 2- 45  Versions of the solder pin connection 
Version of the solder pin connection  Order number 
Without auxiliary switch block  3RT1916-4KA1 
With auxiliary switch block  3RT1916-4KA2 
 
Solder pin connection can be used: 
●  For motor contactors and contactor relays in size S00. 
●  For contactors in size S00 with an attached 4-pole auxiliary switch block. 
●  For the reversing wiring of S00 contactors; in this case, the reversing wiring must be 
carried out before the contactors are soldered onto the PCB.