Siemens SIRIUS 3RT - Operating Mechanism System; Coil Selection 3 RT Contactors and 3 RH2 Contactor Relays; Relays

Configuration
6.3 Operating mechanism system / coil selection 3RT contactors and 3RH2 contactor relays
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
69
6.3
Operating mechanism system / coil selection 3RT contactors and
3RH2 contactor relays
6.3.1
Operating mechanism system / coil selection 3RT2 contactors and 3RH2
contactor relays
The 3RT2 power contactors and 3RH2 contactor relays can be supplied with operating
mechanisms for all standard AC and DC coil voltages. In addition, 3RT2 power contactors in
sizes S0 and S2 are also available with electronic coil control (AC / DC operation) featuring
an extended operating range (helping to reduce variance) and lower closing and holding
powers that enable lower power consumption in the control cabinet. The solenoid coil for
AC / DC operation can be operated with either AC or DC voltage. This is facilitated by control
electronics with an upstream DC operating mechanism.
AC operating
mechanisms
DC operating mechanisms
Electronic operating mechanism
(AC/DC operating mechanism)
Size
S00 … S3
S00 ... S0
S00 ... S3
S0, S2, S3
Actuation
AC operation
DC operation
AC / DC operation
Operating
mechanism
type
50 Hz 60 Hz 50/60
Hz
DC standard
operating
mechanism
DC
operating
mechanism
with low
power input
DC operating
mechanisms
for railway
applications
AC or DC connection possible
Coil surge
suppressor
Optional (integrated in
coupling relays)
Optional
(integrated
in coupling
relays)
Integrated Integrated (varistor)
Operating
range
0.8 to 1.1 x U
S
1)
0.8 to 1.1 x U
S
1)
0.7 ... 1.25 x
U
S
1)
0.7 ... 1.3 x U
S
(for S0)
0.8 ... 1.1 x U
S
(for S2)
0.8 ... 1.1 x U
S
(for S3)
0.8 ... 1.2 x U
S
(for S2 coupling relay
and S3 coupling relay)
Preferred
voltages
• 24 V
• 110 V
• 230 V
• 24 V
• 110 V
• 220 V
• 24 V
• 110 V
S0
• 21 to 28 V
• 95 to 130 V
• 200 to 280 V
2)
S2 / S3
• 20 to 33 V
• 83 to 155 V
• 175 to 280 V
1)
For further details, refer to the chapter titled "Technical data".
2)
At 280 V: high limit = 1.1 x U
S
.
Additional voltage versions are available on request.