SIRIUS 3RT2 contactors/contactor assemblies   
2.2 Product description 
  SIRIUS Innovations 
112  System Manual, 01/2011, A8E56203870002-03 
Reference 
 
More information ...  Can be found in the chapter titled ... 
About the fully wired 3RA24 contactor assembly 
for star-delta (wye-delta) start 
Starting three-phase motors with reduced starting 
current peaks (3RA24 contactor assembly for 
star-delta (wye-delta) start) (Page 135) 
About the components for customers to assemble 
their own contactor assemblies for star-delta 
(wye-delta) start 
Assembly kit for contactor assemblies for star-
delta (wye-delta) start (Page 219) 
2.2.2.5  Drive options 
Drive options 
The following drive types are available for 3RH2 contactor relays and 3RT2 power 
contactors: 
 
  AC drive  DC drive  UC drive 
Size  S00, S0  S00, S0      S0 
Drive type  50 Hz  60 Hz  50/60 Hz  DC 
standard 
drive 
DC drive with 
low power input 
DC drives for 
railway 
applications 
AC or DC 
connection 
possible 
Preferred 
voltages 
  24 V 
  110 V 
  230 V 
  24 V 
  110 V 
  220 V 
  24 V 
  110 V 
  220/230 V 
Contactor 
specificatio
n 
Contactor 
relays and 
power 
contactors 
with 50 Hz 
coil 
(standard 
version for 
size S0) 
Contactor 
relays 
and 
power 
contactor
s with 
60 Hz 
coil 
Contactor 
relays and 
power 
contactors 
with 
50/60 Hz 
coil 
(standard 
version for 
size S00) 
Contactor 
relays 
and 
power 
contactor
s with DC 
coil 
Contactor relays 
and power 
contactors with 
DC coil, 
optimized for 
direct control via 
PLC 
Contactor relays 
and power 
contactors with DC 
coil, optimized for 
railway 
applications 
Power contactors 
with electronic 
coil control for 
control with AC or 
DC voltage 
 
  3RT20 power contactors 
  3RH2 contactor relays 
  3RA23 + 3RA24 contactor assemblies 
Coupling relays 
(versions of the 
3RT2 contactors 
and 3RH2 
contactor relays)
Versions of the 
3RT2 power 
contactors and 
3RH2 contactor 
relays 
Versions of the 
3RT202 power 
contactors 
Additional voltage versions are available on request.