Figure 3-3: Characteristic Curve Of The Electrical Service Life Of The Main Contacts (Frame Size S00); Figure 3-4: Characteristic Curve Of The Electrical Service Life Of The Main Contacts (Frame Size S0) - Siemens sirius System Manual

Characteristic curve:
contact service life of
the main contacts
SIRIUS System Manual
GWA 4NEB 430 0999-02b
The characteristic curves illustrate the contact service life of the main con-
tacts of contactors when switching inductive three-phase loads (AC-3).
I = breaking current
a
I = rated operational current
e
rated output of three-phase induction motors with squirrel cage at
P =
N
400 V
Frame size S00
Operating cycles at
Contactor type
7
10
7 8
6
10
8
6
8
4 6
6
4
4
4
2
2
2
6
10
2
6
10
8 6
10
6 8
6
10
8
6
8
6
4
6
4
4
4
2
2
2
2
5
10
5
10
8
5
10
5
8
6
10
8
6
8
6
4
6
4
4
4
2
2
2
2 4
10
4
10
8 4
10
2
3

Figure 3-3: Characteristic curve of the electrical service life of the main contacts (frame size S00)

Frame size S0
Operating cycles at
Contactor type
7
10
7 8
6
10
8
6
8
6
4
6
4
4
4
2
2
2
6
10
2
6
10
8 6
10
6
8
6
10
8
6
8
6
4
6
4
4
4
2
2
2
2
5
10
5
10
8
5
10
5
8
6
10
8
6
8
6
4
6
4
4
4
2
2
2
2
4
10
4
10
8 4
10
4 5 6
3

Figure 3-4: Characteristic curve of the electrical service life of the main contacts (frame size S0)

3RT1015 3RT1016, 3RT1017
(3 kW) (4 kW, 5,5 kW)
4 5 6 8 10 20
7 9 12
3 4 5,5
3RT1023 3RT1024 3RT1025
(4 kW) (5,5 kW) (7,5 kW)
8 10 20 30 40 50 60 80 100
9 12 17 25
4 5,5 7,5 11
3RT1/3RH1 contactors
NSB0 0473a
I (A) 40 50 60 80
a
I (A)
e
P (kW)
N
3RT1026
(11 kW)
NSB00474a
I (A)
a
I
(A)
e
P
(kW)
N
3-17