Table 8-7: Switching Frequencies With Deactivated Soft Start Function (Direct Start) - Siemens SIMATIC ET 200pro Quick Manual

3RK1304-5KS70-...... (0.15 A to 2 A)
Class 10a
Device installation
Rated current I
e
Ambient temperature
Type of protection
Duty cycle = 30% (8xI
e
0.2 s
Duty cycle = 70% (8xI
e
0.2 s
Duty cycle = 30% (8xI
e
0.4 s
Duty cycle = 70% (8xI
e
0.4 s
CLASS 10
Device installation
Rated current I
e
Ambient temperature
Type of protection
Direct start duty cycle =
30% (8xI ) / 0.4 s
e
Duty cycle = 70% (8xI
e
0.4 s
Duty cycle = 30% (8xI
e
0.8 s
Duty cycle = 70% (8xI
e
0.8 s
3RK1304-5LS70-...... (1.5 A to 12 A)
Class 10a
Device installation
Rated current I
e
Ambient temperature
Type of protection
Duty cycle = 30% (8xI
e
0.25 s
Duty cycle = 70% (8xI
e
0.25 s
Duty cycle = 30% (8xI
e
0.5 s
Duty cycle = 70% (8xI
e
0.5 s
1) Effective stress cycles value corresponds to 1.15 x I
2) Stress cycle limit for motor starter. The motor should be protected here against overloads by means of a thermistor.

Table 8-7: Switching frequencies with deactivated soft start function (direct start)

8-32
vertical
2 A 2 A
40°C 50°C
1) 2) 1)
) / 300 2000 300 2000 300 2000 300 2000 300 2000 300 2000
) / 180 1000 180 1000 180 1000 180 1000 180 1000 180 1000
) / 150 1000 150 1000 150 1000 150 1000 150 1000 150 1000
) / 90 520 90
vertical
2 A 2 A
40°C 50°C
1) 2) 1)
150 1000 150 1000 150 1000 150 1000 150 1000 150 1000
) / 90 500 90
) / 75 490 75
) / 45 250 45
vertical
5 A 5 A
40°C 50°C
1) 2) 1)
) / 240 1300 240 1000 240
) / 150 800 150
) / 120 700 120
) / 70 380 70
=> motor protection
e
2 A 2 A
55°C 40°C
2) 1) 2) 1)
520 90 520 90
2 A 2 A
55°C 40°C
2) 1) 2) 1)
500 90 500 90
490 75 490 75
250 45 250 45
5 A 5 A
55°C 40°C
2) 1) 2) 1)
800 240 1150 240
500 150 350 150
500 120 400 120
270 70 200 70
horizontal
2 A 2 A
50°C 55°C
2) 1) 2) 1)
520 90 520 90
horizontal
2 A 2 A
50°C 55°C
2) 1) 2) 1)
500 90 500 90
490 75 490 75
250 45 250 45
horizontal
5 A 4.5 A
50°C 55°C
2) 1) 2) 1)
840 240
650 150 380 150
580 120 430 120
340 70 200 70
SIMATIC - ET 200pro motor starter
GWA 4NEB 950 5661-02 DS 04
2)
520
2)
500
490
250
2)
840
380
430
200