4 MM300 MOTOR MANAGEMENT SYSTEM – QUICKSTART GUIDE
THERMAL PROTECTION CHAPTER 5: PROTECTION ELEMENTS
The following tables illustrate the relation between GE Multilin MM2 and MM3 curve
numbers, NEMA curves, and the MM300 curve multipliers.
Table 5-2: MM2 and MM3 curve numbers and MM300 curve multipliers
Table 5-3: NEMA curves and MM300 curve multipliers
1.7
5
42.4
1
84.8
3
127.
24
169.
66
212.
07
254.
49
296.
90
339.
32
381.
73
424.
15
466.
56
508.
98
551.
39
593.
81
636.
22
2.0
0
29.1
6
58.3
2
87.4
7
116.
63
145.
79
174.
95
204.
11
233.
26
262.
42
291.
58
320.
74
349.
90
379.
05
408.
21
437.
37
2.2
5
21.5
3
43.0
6
64.5
9
86.1
2
107.
65
129.
18
150.
72
172.
25
193.
78
215.
31
236.
84
258.
37
279.
90
301.
43
322.
96
2.5
0
16.6
6
33.3
2
49.9
8
66.6
4
83.3
0
99.9
6
116.
62
133.
28
149.
94
166.
60
183.
26
199.
92
216.
58
233.
24
249.
90
2.7
5
13.3
3
26.6
5
39.9
8
53.3
1
66.6
4
79.9
6
93.2
9
106.
62
119.
95
133.
27
146.
60
159.
93
173.
25
186.
58
199.
91
3.0
0
10.9
3
21.8
6
32.8
0
43.7
3
54.6
6
65.5
9
76.5
2
87.4
6
98.3
9
109.
32
120.
25
131.
19
142.
12
153.
05
163.
98
3.2
5
9.15 18.2
9
27.4
4
36.5
8
45.7
3
54.8
7
64.0
2
73.1
6
82.3
1
91.4
6
100.
60
109.
75
118.
89
128.
04
137.
18
3.5
0
7.77 15.5
5
23.3
2
31.0
9
38.8
7
46.6
4
54.4
1
62.1
9
69.9
6
77.7
3
85.5
1
93.2
8
101.
05
108.
83
116.
60
3.7
5
6.69 13.3
9
20.0
8
26.7
8
33.4
7
40.1
7
46.8
6
53.5
6
60.2
5
66.9
5
73.6
4
80.3
4
87.0
3
93.7
3
100.
42
4.0
0
5.83 11.6
6
17.4
9
23.3
2
29.1
5
34.9
8
40.8
1
46.6
4
52.4
7
58.3
0
64.1
3
69.9
6
75.7
9
81.6
2
87.4
5
4.2
5
5.12 10.2
5
15.3
7
20.5
0
25.6
2
30.7
5
35.8
7
41.0
0
46.1
2
51.2
5
56.3
7
61.5
0
66.6
2
71.7
5
76.8
7
4.5
0
4.54 9.08 13.6
3
18.1
7
22.7
1
27.2
5
31.8
0
36.3
4
40.8
8
45.4
2
49.9
7
54.5
1
59.0
5
63.5
9
68.1
4
4.7
5
4.06 8.11 12.1
7
16.2
2
20.2
8
24.3
3
28.3
9
32.4
4
36.5
0
40.5
5
44.6
1
48.6
6
52.7
2
56.7
7
60.8
3
5.0
0
3.64 7.29 10.9
3
14.5
7
18.2
2
21.8
6
25.5
0
29.1
5
32.7
9
36.4
3
40.0
8
43.7
2
47.3
6
51.0
1
54.6
5
5.5
0
2.99 5.98 8.97 11.9
6
14.9
5
17.9
4
20.9
3
23.9
1
26.9
0
29.8
9
32.8
8
35.8
7
38.8
6
41.8
5
44.8
4
6.0
0
2.50 5.00 7.49 9.99 12.4
9
14.9
9
17.4
9
19.9
9
22.4
8
24.9
8
27.4
8
29.9
8
32.4
8
34.9
7
37.4
7
6.5
0
2.12 4.24 6.36 8.48 10.6
0
12.7
2
14.8
4
16.9
6
19.0
8
21.2
0
23.3
2
25.4
4
27.5
5
29.6
7
31.7
9
7.0
0
1.82 3.64 5.46 7.29 9.11 10.9
3
12.7
5
14.5
7
16.3
9
18.2
1
20.0
4
21.8
6
23.6
8
25.5
0
27.3
2
7.5
0
1.58 3.16 4.75 6.33 7.91 9.49 11.0
8
12.6
6
14.2
4
15.8
2
17.4
1
18.9
9
20.5
7
22.1
5
23.7
4
8.0
0
1.39 2.78 4.16 5.55 6.94 8.33 9.71 11.1
0
12.4
9
13.8
8
15.2
7
16.6
5
18.0
4
19.4
3
20.8
2
MM2 and MM3 curve number 1 2 3 4 5 6 7 8
MM300 curve multiplier 1 2 3 4 7 9 12 15
NEMA curve Class 10 Class 15 Class 20 Class 30
MM300 curve multiplier 4 6 8 12
PIC
KUP
(× F
LA)
STANDARD CURVE MULTIPLIERS
× 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9 × 10 × 11 × 12 × 13 × 14 × 15
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