Brochure
SIRIUS
Siemens Industry, Inc. Industrial Control Product Catalog 2017
2/11
2
COnTACTORS And
ASSEMbliES
Siemens / Industrial Controls Previous folio: New from excel
Standards
IEC 60947-1, EN 60947-1
IEC 60947-4-1, EN 60947-4-1
IEC 60947-5-1, EN 60947-5-1 (auxiliary switches)
Design
The contactors are suitable for use in any climate. They are safe
from touch to DIN VDE 0106, Part 100. The accessories for the
3-pole SIRIUS contactors can also be used for the 4-pole de-
signs.
Mountable auxiliary contacts
Size S00: 4 auxiliary contacts of which up to 3 can be NC.
Size S0 & S2: 4 additional auxiliary contacts up to 3 can be NC.
Sizes S2 and S3: Up to 4 auxiliary contacts (either laterally
mounted or snappped onto the top).
Contactor assemblies with mechanical interlock
The 4-pole 3RT23 contactors with 4 NO contacts as the main
contacts are suitable for making contactor assemblies with a me-
chanical interlock, e.g. for system transfers.
Size S00: Contactor assemblies can be made using two 3RT231.
contactors in conjunction with the mechanical interlock and two
connecting clips (Order No. 3RA2912-2H, pack comprising 10
interlocking elements and 20 clips for 10 contactor assemblies,
see accessories on page 2/72).
Size S0: In order to make 4-pole contactor assemblies using two
3RT232. contactors, the fourth pole of the left-hand contactor must
always be moved to the left-hand side. The contactor assembly
can then be made easily with the aid of the 3RA2922-2H mechani-
cal interlock and connecting clip set fitted between the
two contactors.
Sizes S2 and S3: Contactor assemblies can be made using two
3RT23 3 or 3RT23 4. contactors in conjunction with the laterally
mountable mechanical interlock and the mechanical connectors.
The mechanical interlock for fitting onto the front cannot be used
for size S2 and S3 contactors.
Application
• Switching resistive loads
• Isolating systems with unearthed or poorly earthed neutral
conductors
• System transfers when alternative AC power supplies are used
• As contactors which only carry current and do not have to switch
in case of inductive loads – e.g. variable-speed operating
mechanisms
• Switching mixed loads in distribution systems (e.g. for supply-
ing heaters, lamps, motors, PC power supply units) with p.f. >
0.8 according to IEC 60947-4-1, test conditions for utilization
category AC-1
1) Size S00 and S0 contactors are also available with
spring-type terminals. Replace the 8th digit of the order
no. with a “2” e.g. “3RT23 16-2AK60”
2) Minimum conductor cross-section 8 AWG.
For further voltages, see page 2/49.
For coil voltage tolerance, p. 2/49
For auxiliaries and accessories,
see page
2/66
-
2/83
.
For spare parts, see page
2/94
-2/99.
For technical data, see page 2/166-2/167.
For in. circuit diagrams, see page 2/191-2/196.
For dimension drawings, see page 2/216.
Selection and ordering data
Rating data Auxiliary contacts
Rated
control
supply
voltage U
s
50/60 Hz
AC Operation
Screw
Terminals
1)
Rated
control
supply
voltage
U
s
DC Operation
Screw
Terminals
1)
AC-1
Max resist.
current I
e
UL ratings
AC loads
at 600 V,
Ident-
ification
No. Version40°C 60°C 60 Hz Order No. Order No.
Amps
Amps
NO NC V AC V DC
For screwing and stapping onto 35 mm mounting rail
3RT23 17-1AP60
Size S00 – Auxiliary switches can be retrofitted
18 16
18
— — — 24
110/120
220/240
3RT23 16-1AB00
3RT23 16-1AK60
3RT23 16-1AP60
24
125
220
3RT23 16-1BB40
3RT23 16-1BG40
3RT23 16-1BM40
22 20
20
— — — 24
110/120
220/240
3RT23 17-1AB00
3RT23 17-1AK60
3RT23 17-1AP60
24
125
220
3RT23 17-1BB40
3RT23 17-1BG40
3RT23 17-1BM40
Size S0 – Terminal designations according to EN 50012 —1 NO + 1 NC, identification number 11E
3RT23 27-1AP60
35
2)
30
2)
30
11E 1 1 24
110/120
220/240
3RT23 25-1AC20
3RT23 25-1AK60
3RT23 25-1AP60
24
125
220
3RT23 25-1BB40
3RT23 25-1BG40
3RT23 25-1BM40
40
2)
35
2)
35
11E 1 1 24
110/120
220/240
3RT23 26-1AC20
3RT23 26-1AK60
3RT23 26-1AP60
24
125
220
3RT23 26-1BB40
3RT23 26-1BG40
3RT23 26-1BM40
50
2)
42
2)
38
11E 1 1 24
110/120
220/240
3RT23 27-1AC20
3RT23 27-1AK60
3RT23 27-1AP60
24
125
220
3RT23 27-1BB40
3RT23 27-1BG40
3RT23 27-1BM40
3RT23 36-1AP60
Size S2
V UC
60 55
60
11E 1 1
24
110/120
220/240
3RT23 36-1AC20
3RT23 36-1AK60
3RT23 36-1AP60
20-33
83-155
175-280
3RT23 36-1NB30
3RT23 36-1NF30
3RT23 36-1NP30
110 95
105
11E 1 1
24
110/120
220/240
3RT23 37-1AC20
3RT23 37-1AK60
3RT23 37-1AP60
20-33
83-155
175-280
3RT23 37-1NB30
3RT23 37-1NF30
3RT23 37-1NP30
Size S3
V UC
140 130
120
— — —
24
110/120
220/240
3RT23 46-1AC20
3RT23 46-1AK60
3RT23 46-1AP60
20-33
83-155
175-280
3RT23 46-1NB30
3RT23 46-1NF30
3RT23 46-1NP30
Contactors and Contactor Assemblies
Contactors for Special Applications
3RT23 contactors, 4-pole (4 NO contacts) for switching resistive loads (AC-1)
Product Category IEC