SIEMENS
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Siemens IC 10 · 2017
Power Contactors for Switching Motors
SIRIUS 3RT contactors, 3-pole up to 250 kW
3
1)
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in one of the ranges specified.
2)
Max. external diameter of the conductor insulation: 3.6 mm.
On spring-type terminals with conductor cross-sections
1 mm²,
an insulation stop must be used,
see page 3/119
.
3)
Tool for opening the spring-type terminals,
see page 3/119
.
Contactors
Type
3RT2045
3RT2046
3RT2047
Size
S3
Conductor cross-sections
Main conductors
(1 or 2 conductors can be connected)
Screw terminals
• Solid
mm
2
2 x (2.5 ... 16)
1)
• Stranded
mm
2
2 x (6 ... 16)
1)
; 2 x (10 ... 50)
1)
; 1 x (10 ... 70)
1)
• Finely stranded with end sleeve (DIN 46228-1)
mm
2
2 x (2.5 ... 35)
1)
; 1 x (2.5 ... 50)
1)
• AWG cables, solid or stranded
AWG
2 x (10 ... 1/0)
1)
; 1 x (10 ... 2/0)
1)
• Terminal screws
Hexagon socket, size 4
-
Tightening torque
Nm
4.5 ... 6 (40 ... 53 lb.in)
Auxiliary and control conductors
(1 or 2 conductors can be connected)
• Solid or stranded
mm
2
2 x (0.5 ... 1.5)
1)
; 2 x (0.75 ... 2.5)
1)
• Finely stranded with end sleeve (DIN 46228-1)
mm
2
2 x (0.5 ... 1.5)
1)
; 2 x (0.75 ... 2.5)
1)
• AWG cables, solid or stranded
AWG
2 x (20 ... 16)
1)
; 2 x (18 ... 14)
1)
• Terminal screws
M3 (for Pozidriv size 2;
5 ... 6)
-
Tightening torque
Nm
0.8 ... 1.2 (7 ... 10.3 lb.in)
Auxiliary and control conductors
2)
(1 or 2 conductors can be connected)
Spring-type terminals
• Operating devices
3)
mm
3.0 x 0.5
• Solid or stranded
mm
2
2 x (0.5 ... 2.5)
• Finely stranded with end sleeve (DIN 46228-1)
mm
2
2 x (0.5 ... 1.5)
• Finely stranded without end sleeve
mm
2
2 x (0.5 ... 2.5)
• AWG cables, solid or stranded
AWG
2 x (20 ... 16)
© Siemens AG 2016