Siemens SIRIUS 3RT - 3 RT2 Power Contactors

Product description
4.2 Device versions
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
36 Manual, 09/2017, A5E03656507120A/RS-AE/006
4.2.1
3RT2 power contactors
The 3RT2 contactors are equipped with AC and DC operating mechanism options. An
electronic AC/DC operating mechanism can also be ordered for size S0. An AC operating
mechanism and an electronic AC / DC operating mechanism can be ordered for sizes S2
and S3. Special contactor variants with voltage tap of the main circuit are available for
contactor integration via AS-Interface or IO-Link using 3RA27 function modules.
These power contactors are supplied with 24 V DC coils.
Versions
Table 4- 1 Versions of the 3RT2 power contactors
Feature
Specifications
Version
Power contactor
for switching
electrical loads
Power contactor
with extended
operating range
for rail
applications
Coupling relay
for switching
electrical loads
3RT23 power
contactor with 4
NO contacts
3RT25 power
contactor with
2 NO contacts
and 2 NC
contacts
3RT24 power
contactor for
switching
resistive
loads
Number of poles 3 3 3 4 2 NO contacts
and 2 NC
contacts
3
Number of
integrated
auxiliary
contacts
S00
1 NO contact or 1 NC contact
—
—
—
S0 1 NO contact and 1 NC contact —
S2
1 NO contact and 1 NC contact
—
S3
1 NO contact and 1 NC contact
Connection systems
The power contactors can be supplied with the connection systems detailed below:
● Screw connection
● Spring-loaded connection (sizes S2 and S3, auxiliary and control line only)
● Ring cable lug connection system (size S0 / S00 only)
● Busbar connection (size S3 only)
● Box terminal connection (size S3 only)
● Solder pin connection (size S00 only)
Solder pin connection is only possible in conjunction with the optional solder pin adapter
accessory