Siemens 3RB20 Podręcznik referencyjny - Strona 13
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Type
Size
Width
Auxiliary circuit
Number of NO contacts
Number of NC contacts
Auxiliary contacts – assignment
Rated insulation voltage U
i
(degree of pollution 3)
Rated impulse withstand voltage U
Contact rating of the auxiliary contacts
• NC contact with alternating current AC-14/AC-15,
I
rated operational current
at U
:
e
e
- 24 V
- 120 V
- 125 V
- 230 V
- 400 V
- 600 V
- 690 V
• NO contact with alternating current AC-14/AC-15,
I
rated operational current
at U
:
e
e
- 24 V
- 120 V
- 125 V
- 230 V
- 400 V
- 600 V
- 690 V
• NC contact, NO contact with direct current DC-13,
I
rated operational current
at U
:
e
e
- 24 V
- 60 V
- 110 V
- 125 V
- 220 V
I
• Conventional thermal current
th
• Contact reliability
(suitability for PLC control; 17 V, 5 mA)
Short-circuit protection
• With fuse
- gL/gG operational class
- Quick
• With miniature circuit breaker (C characteristic)
Protective separation between main and auxiliary
conducting path
Acc. to IEC 60947-1
CSA, UL, UR rated data
Auxiliary circuit – switching capacity
Connection of the auxiliary circuit
Connection type
• Terminal screw
• Tightening torque
• Conductor cross-sections (min./max.), 1 or 2 conductors
- Solid
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG cables, solid or stranded
Connection type
• Conductor cross-sections (min./max.)
- Solid
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG cables, solid or stranded
1) On request.
≤ 0.5 kA; ≤ 260 V.
2) Up to I
k
3RU11 16
S00
45 mm
1
1
1 NO for the signal "tripped",
1 NC for disconnecting the contactor
V
690
kV
6
imp
A
4
A
4
A
4
A
3
A
2
A
0.6
A
0.5
A
3
A
3
A
3
A
2
A
1
A
0.6
A
0.5
A
1
1)
A
A
0.22
A
0.22
A
0.11
2)
A
6
Yes
A
6
A
10
A
6
V
440
B600, R300
Pozidriv size 2
Nm
0.8 ... 1.2
2
mm
2 x (0.5 ... 1.5)
2
mm
--
2
mm
2 x (0.5 ... 1.5)
2
mm
2 x (0.5 ... 1.5)
AWG
2 x (18 ... 14)
2 x (0.25 ... 2.5)
2 x (0.25 ... 2.5)
2 x (0.25 ... 1.5)
--
2 x (24 ... 14)
3RU1 Thermal Overload Relays
3RU11 for standard applications
3RU11 26
S0
45 mm
Screw terminals
3)
3)
, 2 x (0.75 ... 2.5)
3)
3)
, 2 x (0.75 ... 2.5)
3)
3)
, 2 x (0.75 ... 2.5)
Cage Clamp terminals
3) If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in the range specified. If identical
cross-sections are used, this restriction does not apply.
Overload Relays
3RU11 36
3RU11 46
S2
S3
55 mm
70 mm
Siemens · 2011
11