Siemens SIMATIC ET 200pro - Table 8-6: Switching Frequencies with Activated Soft Start Function

SIMATIC – ET 200pro motor starter
GWA 4NEB 950 5661-02 DS 04
8-25
3RK1304-5KS70-...... (0.15 A to 2 A)
Class 10a
Device installation vertical horizontal
Rated current I
e
2 A
40°C
2 A
50°C
2 A
55°C
2 A
40°C
2 A
50°C
2 A
55°C
Ambient temperature
Type of protection 1) 2) 1) 2) 1) 2) 1) 2) 1) 2) 1) 2)
Duty cycle = 30%, Start
4xI
e
/1 s
250 910 250 910 250 910 250 910 250 910 250 910
Duty cycle = 70%, Start
4xI
e
/1 s
150 460 150 460 150 460 150 460 150 460 150 460
Duty cycle = 30%, Start
4xI
e
/2 s
120 420 120 420 120 420 120 420 120 420 120 420
Duty cycle = 70%, Start
4xI
e
/2 s
70 210 70 210 70 210 70 210 70 210 70 210
CLASS 10
Device installation vertical horizontal
Rated current I
e
2 A
40°C
2 A
50°C
2 A
55°C
2 A
40°C
2 A
50°C
2 A
55°C
Ambient temperature
Type of protection 1) 2) 1) 2) 1) 2) 1) 2) 1) 2) 1) 2)
Duty cycle = 30%, Start
4xI
e
/1 s
120 450 120 450 120 450 120 450 120 450 120 450
Duty cycle = 70%, Start
4xI
e
/1 s
70 230 70 230 70 230 70 230 70 230 70 230
Duty cycle = 30%, Start
4xI
e
/2 s
60 210 60 210 60 210 60 210 60 210 60 210
Duty cycle = 70%, Start
4xI
e
/2 s
371003710037100371003710037100
CLASS 15
Device installation vertical horizontal
Rated current I
e
2 A
40°C
2 A
50°C
2 A
55°C
2 A
40°C
2 A
50°C
2 A
55°C
Ambient temperature
Type of protection 1) 2) 1) 2) 1) 2) 1) 2) 1) 2) 1) 2)
Duty cycle = 30%, Start
4xI
e
/1 s
80 300 120 450 120 450 120 450 120 450 120 450
Duty cycle = 70%, Start
4xI
e
/1 s
50 150 70 230 70 230 70 230 70 230 70 230
Duty cycle = 30%, Start
4xI
e
/2 s
40 140 60 210 60 210 60 210 60 210 60 210
Duty cycle = 70%, Start
4xI
e
/2 s
25 70 37 100 37 100 37 100 37 100 37 100
1) Effective stress cycles value corresponds to 1.15 x I
e
=> motor protection
2) Stress cycle limit for motor starter. The motor should be protected here against overloads by means of a thermistor.
Table 8-6: Switching frequencies with activated soft start function