Siemens SIMATIC ET 200pro - Page 121

SIMATIC – ET 200pro motor starter
GWA 4NEB 950 5661-02 DS 04
8-29
3RK1304-5LS70-...... (1.5 A to 12 A)
Class 10a
Device installation vertical horizontal
Rated current I
e
9 A
40°C
9 A
50°C
9 A
55°C
9 A
40°C
9 A
50°C
9 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
250 340 250 250 210 210 250 290 210 210 170 170
Duty cycle = 70%, Start
4xI
e
/1 s
150 290 150 200 150 160 150 240 150 170 125 125
Duty cycle = 30%, Start
4xI
e
/2 s
120 170 120 120 105 105 120 145 105 105 88 88
Duty cycle = 70%, Start
4xI
e
/2 s
70 140 70 100 70 80 70 120 70 82 63 63
CLASS 10
Device installation vertical horizontal
Rated current I
e
9 A
40°C
9 A
50°C
9 A
55°C
9 A
40°C
9 A
50°C
9 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
/2 s
120 170 120 120 105 105 120 145 105 105 88 88
Duty cycle = 70%, Start
4xI
e
/2 s
70 140 70 100 70 80 70 120 70 82 63 63
Duty cycle = 30%, Start
4xI
e
/4 s
60 85 60 60 53 53 60 72 53 53 44 44
Duty cycle = 70%, Start
4xI
e
/4 s
38 72 38 50 38 38 38 60 38 41 31 31
CLASS 15
Device installation vertical horizontal
Rated current I
e
9 A
40°C
9 A
50°C
9 A
55°C
9 A
40°C
9 A
50°C
9 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
/3 s
8011580857070809771715858
Duty cycle = 70%, Start
4xI
e
/3 s
50 95 50 65 50 52 50 80 50 55 42 42
Duty cycle = 30%, Start
4xI
e
/6 s
40 57 40 42 35 35 40 48 35 35 29 29
Duty cycle = 70%, Start
4xI
e
/6 s
26 48 26 33 26 26 25 40 25 27 21 21
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 (cont.)