SIRIUS 3RV2 motor starter protectors 
  4.12 Circuit diagrams 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
483 
3RV2 motor starter protectors/circuit breakers acc. to UL 489 
 
3RV20.1-...0, 3RV24.1-...0, 
3RV27.1-...0, 3RV28.1-...0 
3RV23.1-...0 
,
,,
/
7
/
7
/
7
 
,,,
/
7
/
7
/
7
 
Motor starter protectors for motor 
protection/transformer protection/system 
protection 
Motor starter protector for starter protection 
 
3RV20.1-...5, 3RV24.1-...5 
/ / /  
7 7 7  
,!
,!
,!
 
Motor starter protectors for motor protection/transformer protection with transverse auxiliary 
switch 
 
3RV21.1-...0 
7(67
,,,
/
7
/
7
/
7
 
Motor starter protectors for motor protection with overload relay function