Motor Ratings and Rated Currents - KLINGER BORN

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Motor Ratings and Rated Currents

Guide Values for Three-Phase Squirrel-Cage Motors, 1500rpm, 50Hz
Motor rating 125V~ 230V~ 400V~
kW hp cosφ η% Motor
rated
current		 min.
back-up fuse
for motor
starting
(*)		 ΥΔ Motor
rated
current		 min.
back-up fuse
for motor
starting
(*)		 ΥΔ Motor
rated
current		 min.
back-up fuse
for motor
starting
(*)		 ΥΔ
0.06 1/12 0.7 59
0.67
2
2
0.38
1
1
0.22
1
1
0.09 1/8 0.7 60
0.99
2
0,67
0.55
2
2
0.33
1
1
0.12 1/6 0.7 61
1.29
4
0,67
0.76
2
2
0.42
2
2
0.18 1,4 0.7 61
1.93
4
4
1.1
2
2
0.64
2
2
0.25 1/3 0.7 62
2.69
4
4
1.4
4
2
0.88
2
2
0.,37 1/2 0.72 64
3.7
6
4
2.1
4
4
1.22
4
2
0.55 3/4 0.75 69
4.4
10
6
2.7
4
4
1.5
4
2
0.75 1 0.8 74
5.9
10
10
3.3
6
4
2
4
4
0.8 1.1 0.8 74
6.3
16
10
3.6
6
4
2.1
4
4
1.1 1.5 0.83 77
7.8
16
10
4.9
10
6
2.6
4
4
1.5 2 0.83 78
10.7
20
16
6.2
10
10
3.5
6
4
2.2 3 0.83 81
15.,2
25
20
8.7
16
10
5
10
6
2.5 3.4 0.83 81
17.3
25
0,67
9.8
16
16
5.7
10
10
3 4 0.84 81
20.4
35
25
11.6
20
16
6.6
16
10
3.7 5 0.84 82
25
35
35
14.2
25
20
8.2
16
10
4 5.5 0.84 82
26.8
35
35
15.3
25
20
8.5
16
10
5 6.8 0.84 83
33.1
50
50
18.9
35
25
10.5
20
16
5.5 7.5 0.85 83
36.4
63
50
20.6
35
25
11.5
20
16
6.5 8.8 0.85 84
42.4
63
50
23.7
35
25
13.8
25
16
7.5 10 0.86 85
47.6
63
50
27.4
50
35
15.5
35
16
11 15 0.86 87
39.0
80
40
22.5
40
25
15 20.5 0.86 87
52.0
100
63
30.0
63
32
18.5 25 0.86 88
64.0
125
80
36.0
63
40
22 30 0.87 89
75
125
80
43.0
80
50
30 41 0.87 90
100
200
100
58.0
100
63
37 50.5 0.87 90
124
200
125
72.0
125
80
45 61 0.88 91
147
250
160
85.0
160
100

(*) = Only for direct motor start

Direct motor start: Starting current max. 6x motor rated current
ΥΔ-start: Starting current max. 2x motor rated current

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