Catalog LV1 T 2009 Chapter 3 EN

3
3RT, 3TB, 3TF Contactors for Switching Motors
3RT10 contactors, 3-pole, 3 ... 250 kW
Contactors Type 3RT10 23 3RT10 24 3RT10 25 3RT10 26
Size S0 S0 S0 S0
Conductor cross-sections (1 or 2 conductors connectable)
Main conductors Screw terminals
Conductor cross-section
Solid mm² 2 x (1 ... 2.5) 1) ; 2 x (2.5 ... 6) 1) Finely stranded with end sleeve mm²
acc. to IEC 60947; max. 1 x 10
2 x (1 ... 2.5) 1) ; 2 x (2.5 ... 6) 1)
AWG cables, solid AWG 2 x (16 ... 12)
AWG cables,
AWG 2 x (14 ... 10)
solid or stranded
AWG cables, stranded AWG 1 x 8
Terminal screws M4 (Pozidriv size 2)
- Tightening torque
Auxiliary conductors
Nm 2 ... 2.5 (18 ... 22 lb.in)
Conductor cross-section
Solid mm 2
2 x (0.5 ... 1.5) 1) ; 2 x (0.75 ... 2.5) 1) acc. to IEC 60947;
max. 2 x (0.75 ... 4)
Finely stranded with end sleeve mm2 2 x (0.5 ... 1.5) 1) ; 2 x (0.75 ... 2.5) 1)
solid or stranded AWG (2 x) AWG 2 x (20 ... 16) 1) ; 2 x (18 ... 14) 1) ; 1 x 12
Terminal screws M3
- Tightening torque Nm 0.8 ... 1.2 (7 ... 10.3 lb.in)
Auxiliary conductors Cage Clamp terminals
Solid mm
1)
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in the range specified. If identical crosssections
are used, this restriction does not apply.
2
Finely stranded with end sleeve mm
2 x (0.25 ... 2.5)
2
Finely stranded without end sleeve mm
2 x (0.25 ... 1.5)
2 2 x (0.25 ... 2.5)
AWG cables,
solid or stranded
AWG 2 x (24 ... 14)
Contactors Type 3RT10 34 3RT10 35 3RT10 36
Size S2 S2 S2
General data
Permissible mounting position
The contactors are designed for
operation on a vertical mounting
surface.
3/28
Siemens LV 1 T · 2009
AC and DC operation
Upright mounting position: AC and DC operation
Mechanical endurance Basic units Operating
cycles
Special version required.
10 million
Basic unit with snap-on auxiliary
switch block
10 million
Solid-state compatible auxiliary
switch block
5 million
Electrical endurance
1)
Rated insulation voltage Ui (degree of pollution 3) V 690
Rated impulse withstand voltage U imp kV 6
Protective separation between the coil and the main contacts
acc. to EN 60947-1, Appendix N
© Siemens AG 2009
V 400
30° 30°
For DC operation and 22.5 ° inclination towards the front,
operating range 0.85 ... 1.1 x U s
Mirror contacts
A mirror contact is an auxiliary NC - 3RT10 3., 3RT13 3.
Yes, acc. to EN 60947-4-1, Appendix F
contact that cannot be closed simul- (removable auxiliary switch block)
taneously with a NO main contact.
- 3RT10 3., 3RT13 3.
(non-removable auxiliary switch
block)
Acc. to SUVA requirements on request.
Permissible ambient temperature During operation °C -25 ... +60
During storage °C -55 ... +80
Degree of protection acc. to EN 60947-1, Appendix C
IP20 (terminal compartment IP00),
AC coil assembly IP40,
DC coil assembly IP30
Touch protection acc. to EN 50274
Shock resistance
Finger-safe
Rectangular pulse AC and DC operation g/ms 10/5 and 5/10
Sine pulse AC and DC operation g/ms 15/5 and 8/10
Conductor cross-sections
2)
1)
For endurance of the main contacts see page 3/19.
2)
For conductor cross-sections see page 3/32.
360°
5 * " % % =
NSB0_00478b