SIEMENS
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Siemens IC 10 · 2017
Contactor Relays
SIRIUS 3RH2 contactor relays, 4- and 8-pole
5
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 mm
2
an "insulation stop" must be used;
see page 3/119
.
3)
Tool for opening the spring-type terminals:
see page 3/119
.
Contactor relays
Type
3RH21
3RH22
3RH24
Size
S00
Conductor cross-sections
Auxiliary conductors and coil terminals
(1 or 2 conductors can be connected)
Screw terminals
• Solid or stranded
mm
2
2 x (0.5 ... 1.5)
1)
; 2 x (0.75 ... 2.5)
1)
, max. 2 x 4
• Finely stranded with end sleeve
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 screw
M3 (for Pozidriv size 2,
5 ... 6 mm)
-
Tightening torque
Nm
0.8 ... 1.2 (7 ... 10.3 lb.in)
Auxiliary conductors and coil terminals
2)
(1 or 2 conductors can be connected)
Spring-type terminals
• Operating devices
3)
mm
3.0 x 0.5; 3.5 x 0.5
• Solid or stranded
mm
2
2 x (0.5 ... 4)
• Finely stranded with end sleeve
mm
2
2 x (0.5 ... 2.5)
• Finely stranded without end sleeve
mm
2
2 x (0.5 ... 2.5)
• AWG cables, solid or stranded
AWG
2 x (20 ... 12)
Auxiliary conductors for front and laterally mounted auxiliary
switches
2)
• Operating devices
3)
mm
3.0 x 0.5; 3.5 x 0.5
• Solid or stranded
mm
2
2 x (0.5 ... 2.5)
• Finely stranded with end sleeve
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 ... 14)
© Siemens AG 2016