3Rt2 Power Contactors - Siemens SIRIUS 3RT Series System Manual

2.2.2.2

3RT2 power contactors

The table below shows the different versions of the 3RT2 power contactors. The contactors
are equipped with AC and DC drive options. An electronic UC drive can also be ordered for
size S0. Special communication-capable contactors are available for integration via
AS-Interface or IO-Link by means of 3RA27 function modules; these contactors enable the
voltage of the main circuit to be tapped directly. The communication-capable power
contactor is supplied with a 24 V DC drive option.
Versions
Table 2- 5 Versions of the 3RT2 power contactors
Feature Specifications
Version Power contactor
for switching
electrical loads
Number of poles 3
Number of S00 1 NO contact or
integrated 1 NC contact
auxiliary
S0 1 NO contact and
contacts
1 NC contact
Size S00/S0
Width 45 mm
Connection systems
The power contactors can be supplied with the connection systems detailed below:
Table 2- 6 Connection systems available for 3RT2 power contactors
Connection Power contactor for
system switching electrical
loads
Screw connection
Spring-loaded
connection
Ring cable lug
connection
Solder pin
connection (only
possible in
conjunction with
the "solder pin
adapter" optional
accessory)
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
Power contactor
with extended
operating range
3
1 NO contact or
1 NC contact
1 NO contact and
1 NC contact
Power contactor with
extended operating
range
✓
✓
✓
✓
(size S00 only)
SIRIUS 3RT2 contactors/contactor assemblies
Coupling relay for
switching
electrical loads
3
1 NO contact or
1 NC contact
1 NO contact and
1 NC contact
Coupling relay for
switching electrical
loads
✓
✓
---
✓
(size S00 only)
2.2 Product description
3RT23 power
contactor for
switching resistive
loads
4
---
1 NO contact and
1 NC contact
3RT23 power contactor
for switching resistive
loads/3RT25 power
contactor with 2 NO
contacts and 2 NC
contacts
✓
✓
---
✓
(size S00 only)
3RT25 power
contactor with
2 NO contacts
and 2 NC contacts
2 NO contacts +
2 NC contacts
---
1 NO contact and
1 NC contact
✓
✓
---
---
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