
3RU11, 3RB10, and 3RB12 overload relays
SIRIUS System Manual
4-38
GWA 4NEB 430 0999-02b
1)
For the connection cross-sections for the Cage Clamp terminal system, see "Connecting the auxiliary circuit".
2)
The box terminal can be removed. After the box terminal has been removed, busbar and cable-lug connections are possible.
Type
3RU11 16
3RU11 26
3RU11 36
3RU11 46
Frame size
S00
S0
S2
S3
Width
45 mm
45 mm
55 mm
70 mm
Main circuit
Rated insulation voltage
U
i
(pollution degree 3)
V
690
1000
Rated impulse strength U
imp
kV
6
8
Rated operating voltage
U
e
V
690
1000
Current type
Direct current
Yes
Alternating current
Yes, frequency range up to 400 Hz
Current setting
A
0.11 - 0.16
1.8 - 2.5
5.5 - 8
18 - 25
Up to 9 - 12
Up to 20 - 25
Up to 40 - 50
Up to 80 - 100
Power loss per device (max.)
W
3.9 to 6.6
3.9 to 6
6 to 9
10 to 16.5
Short-circuit protection
With fuse, without contactor
With fuse and contactor
See the selection and ordering data in the NSK catalog as of page 4/4
See the technical specifications (short-circuit protection with fuses/
circuit breakers for motor feeders)
Safe isolation
between
main and auxiliary conducting paths
In acc. with DIN VDE 0106 Part 101
IEC 60 947-1-A1
V
500
690
Connection of the main circuit
Connection type
Screw-type ter-
minal/
Cage Clamp
terminal
1
)
Screw-type ter-
minal
Screw-type ter-
minal
with box termi-
nal
Screw-type ter-
minal with box
terminal
2
)/bar
connection
Screw-type terminal
• Terminal screw
Pozidriv 2
Allen screw
4 mm
• Tightening torque
Nm
0.8 to 1.2
2 to 2.5
3 to 4.5
4 to 6
• Connection cross-section
(min./max.), 1 or 2 conductors
Single-core
mm
2
2 x (0.5 to 1.5)
2 x (0.75 to 2.5)
max. 2 x
(1 to 4)
2 x (1 to 2.5)
2 x (2.5 to 6)
max. 2 x
(2.5 to 10)
2 x (0.75 to 16)
-
2 x (2.5 to 16)
-
Finely stranded without wire end ferrule mm
2
-
Finely stranded with wire end ferrule
mm
2
2 x (0.5 to 1.5)
2 x (1 to 2.5)
2 x (0.75 to 16)
2 x (2.5 to 35)
mm
2
2 x (0.75 to 2.5) 2 x (2.5 to 6)
1 x (0.75 to 25)
1 x (2.5 to 50)
Stranded
mm
2
2 x (0.5 to 1.5)
2 x (1 to 2.5)
2 x (0.75 to 25)
2 x (10 to 50)
mm
2
2 x (0.75 to 2.5)
max. 2 x
(1 to 4)
2 x (2.5 to 6)
max. 2 x
(2.5 to 10)
1 x (0.75 to 35)
1 x (10 to 70)
AWG cables, single- or multi-core
AWG
2 x (18 to 14)
2 x (14 to 10)
2 x (18 to 3)
2 x (10 to 1/0)
AWG
–
–
1 x (18 to 1)
2 x (10 to 2/0)
Ribbon cables (number x width x depth)
mm
–
–
2 x (6 x 9 x 0.8)
2 x (6 x 9 x 0.8)
Bar connection
• Terminal screw
M 6 x 20
• Tightening torque
Nm
4 to 6
• Connection cross-section
Finely stranded with cable lug
mm
2
-
2 x 70
(min./max.)
Stranded with cable lug
mm
2
-
2 x 70
AWG cables, single-core or stranded
with cable lug
AWG
- 2/0
With connecting bars (max. width)
mm
-
12