Siemens SIRIUS, System Manual, Page: 227 / 425

3RT1/3RH1 contactors
SIRIUS System Manual
GWA 4NEB 430 0999-02b
3-119
Current carrying capacity with direct current
Contactor Frame size
Type S2
3RT10 34 S2
3RT10 35 S2
3RT10 36
Utilization category DC-1,
switching of resistive loads (L/R
≤
1 ms)
Rated operational current I
e
(at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
Up to 24 V
60 V
110 V
A
A
A 45 45 45
20 45 45
4.5 45 45
55 55 55
23 45 45
4.5 45 45
50 50 50
23 45 45
4.5 45 45
220 V
440 V
600 V A
A
A 1 5 45
0.4 1 2.9
0.25 0.8 1.4
1 5 45
0.4 1 2.9
0.25 0.8 1.4
1 5 45
0.4 1 2.9
0.25 0.8 1.4
Utilization categories DC-3 and DC-5,
shunt and series motors (L/R
≤
15 ms)
Rated operational current I
e
(at 60 °C)
Number of conducting paths in series connection 1 2 3 1 2 3 1 2 3
Up to 24 V
60 V
110 V
A
A
A 35 45 45
6 45 45
2.5 25 45
35 55 55
6 45 55
2.5 25 55
35 50 50
6 45 50
2.5 25 50
220 V
440 V
600 V A
A
A 1 5 25
0.1 0.27 0.6
0.06 0.16 0.35
1 5 25
0.1 0.27 0.6
0.06 0.16 0.35
1 5 25
0.1 0.27 0.6
0.06 0.16 0.35
Switching frequency
Switching frequency z in operating cycles/hour AC DC AC DC AC DC
Contactors without overload relay No-load operation fre-
quency 1/h 5000 1500 5000 1500 5000 1500
Dependency of switching frequency z’
on operating current I’ and operating voltage U’ :
z’ = z
⋅ ⋅
1 .5
1/h
With AC-1
With AC-2
With AC-3
With AC-4
1/h
1/h
1/h
1/h
AC/DC
1200
750
1000
250
AC/DC
1200
600
1000
300
AC/DC
1000
400
800
300
Contactors with overload relay (average value) 1/h 15 15 15
I
e
I
′
-----
400 V
U
′
-------------
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