
3RU11, 3RB10, and 3RB12 overload relays
SIRIUS System Manual
4-42
GWA 4NEB 430 0999-02b
Short-circuit protection with fuses for motor feeders with short-circuit currents of up to 70 kA at 50/60 Hz 690 VAC
Frame size S2
UL
fuse
RK5
Circuit breaker for
starter protection at
I
q
= 50 kA / 400 VAC
Adjustment range
15 kW
3RT10 34
I
e
max
= 32 A
(at 50 Hz 400 VAC)
18.5 kW
3RT10 35
I
e
max
= 40 A
(at 50 Hz 400 VAC)
22 kW
3RT10 36
I
e
max
= 50 A
(at 50 Hz 400 VAC)
A
gL/gG
aM
BS88T
gL/gG
aM
BS88T
gL/gG
aM
BS88T
A
5.5 to 8
25
10
25
25
10
25
25
10
25
30
–
7 to 10
32
16
32
32
16
32
32
16
32
40
–
9 to 12.5
35
16
35
35
16
35
35
16
35
50
–
11 to 16
40
20
40
40
20
40
40
20
40
60
–
14 to 20
50
25
50
50
25
50
50
25
50
80
–
18 to 25
63
32
63
63
32
63
63
32
63
100
3RV1331-4DC10
22 to 32
63
35
63
63
35
63
80
35
80
125
3RV1331-4EC10
28 to 40
63
50
63
63
50
63
80
50
80
150
3RV1331-4FC10
36 to 45
63
50
80
80
50
80
175
3RV1331-4GC10
40 to 50
80
50
80
200
3RV1331-4HC10
Frame size S3
UL fuse
RK5
Circuit breaker for
starter protection at
I
q
= 50 kA / 400 VAC
Adjustment range
30 kW
3RT10 44
I
e
max
= 65 A
(at 50 Hz 400 VAC)
37 kW
3RT10 45
I
e
max
= 80 A
(at 50 Hz 400 VAC)
45 kW
3RT10 46
I
e
max
= 95 A
(at 50 Hz 400 VAC)
A
gL/gG
aM
BS88T
gL/gG
aM
BS88T
gL/gG
aM
BS88T
A
18 to 25
63
32
63
63
32
63
63
32
63
100
–
22 to 32
80
35
80
80
35
80
80
35
80
125
–
28 to 40
80
50
80
80
50
80
80
50
80
150
–
36 to 50
125
50
125
125
50
125
125
50
125
200
–
45 to 63
125
63
125
160
63
160
160
63
160
250
3RV1341-4JC10
57 to 75
160
80
160
160
80
160
300
3RV1341-4KC10
70 to 90
160
100
160
350
3RV1341-4LC10
80 to 100
160
100
160
350
3RV1341-4MC10