Brochure

25
5/98
© 1998 Square D All Rights Reserved
Thermal Unit Selection
Tables 1 thru 6
Index and Instructions: Pages 18-20
Table 1
Motor Full-Load
Current (Amp)
Thermal
Unit
Number
1 T.U. 3 T.U.
0.33-0.36
0.37-0.40
0.41-0.45
0.46-0.52
0.53-0.59
0.29-0.32
0.33-0.36
0.37-0.39
0.40-0.47
0.48-0.56
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
0.60-0.66
0.67-0.73
0.74-0.81
0.82-0.91
0.92-1.02
0.57-0.63
0.64-0.69
0.70-0.77
0.78-0.86
0.87-0.96
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
1.03-1.14
1.15-1.29
1.20-1.42
1.43-1.64
1.65-1.80
0.97-1.11
1.12-1.23
1.24-1.37
1.38-1.55
1.56-1.75
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
1.81-2.10
2.11-3.20
2.31-2.61
2.62-2.99
3.00-3.37
1.76-1.92
1.93-2.16
2.17-2.50
2.51-2.81
2.82-3.16
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
3.38-3.94
3.95-4.24
4.25-4.54
4.55-5.29
5.30-5.73
3.17-3.40
3.41-3.76
3.77-4.00
4.01-4.68
4.69-5.18
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
5.74-6.35
6.36-7.08
7.09-7.83
7.84-8.47
8.48-9.83
5.19-5.51
5.52-6.19
6.20-7.12
7.13-8.15
8.16-8.60
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
9.84-10.5
10.6-11.4
11.5-12.8
12.9-13.9
14.0-16.1
16.2-18.0
8.61-9.21
9.22-10.1
10.2-11.2
11.3-12.0
. . . .
. . . .
B14
B 15.5
B 17.5
B 19.5
B22
B25
Following Selections
for Size M-1 & M-1P Only.
. . . .
. . . .
16.2-17.6
17.7-20.6
20.7-23.1
23.2-26.0
. . . .
. . . .
11.3-12.1
12.2-13.6
13.7-15.3
15.4-17.3
17.4-19.1
19.2-21.7
21.8-24.2
24.3-26.0
B 19.5
B22
B25
B 28.0
B32
B36
B40
B45
Following Selections
for Size M-1P Only
23.2-27.1
27.2-29.2
29.3-33.0
33.1-36.0
. . . .
. . . .
. . . .
. . . .
B36
B40
B45
B50
Table 2
Motor Full-Load
Current (Amp)
Thermal
Unit
Number
1 T.U. 3 T.U.
0.35-0.38
0.39-0.43
0.44-0.48
0.49-0.56
0.57-0.63
0.30-0.32
0.33-0.37
0.38-0.39
0.40-0.48
0.49-0.57
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
0.64-0.71
0.72-0.78
0.79-0.88
0.89-0.99
1.00-1.15
0.58-0.64
0.65-0.70
0.71-0.78
0.79-0.87
0.88-0.98
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
1.16-1.23
1.24-1.43
1.44-1.51
1.52-1.75
1.76-1.93
0.99-1.13
1.14-1.25
1.26-1.40
1.41-1.58
1.59-1.79
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
1.94-2.25
2.26-2.47
2.48-2.81
2.82-3.20
3.21-3.63
1.80-1.91
1.92-2.20
2.21-2.55
2.56-2.87
2.88-3.24
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
3.64-4.19
4.20-4.53
4.54-4.89
4.90-5.68
5.69-6.27
3.25-3.48
3.49-3.85
3.86-4.10
4.11-4.79
4.80-5.31
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
6.28-6.85
6.86-7.73
7.74-8.50
8.51-9.29
9.30-10.4
5.32-5.65
5.66-6.35
6.36-7.31
7.32-8.34
8.35-8.84
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
10.5-11.3
11.4-12.3
12.4-13.9
14.0-15.0
15.1-18.0
8.85-9.47
9.48-10.4
10.5-11.5
11.6-12.0
. . . .
B14
B 15.5
B 17.5
B 19.5
B22
Following Selections
for Size M-1 & M-1P Only.
. . . .
15.1-17.4
17.5-19.2
19.3-22.0
22.1-24.6
11.6-12.4
12.5-14.0
14.1-15.8
15.9-17.8
17.9-19.7
B 19.5
B22
B25
B 28.0
B32
24.7-26.0
. . . .
. . . .
19.8-22.4
22.5-25.1
25.1-26.0
B36
B40
B45
Following Selections
for Size M-1POnly.
24.7-29.1
29.2-31.7
31.8-36.0
. . . .
. . . .
. . . .
B36
B40
B45
Table 3
Motor Full-Load
Current (Amp)
Thermal
Unit
Number
1 T.U. 3 T.U.
0.29-0.31
0.32-0.36
0.37-0.39
0.40-0.47
0.48-0.56
0.28-0.29
0.30-0.33
0.34-0.36
0.37-0.44
0.45-0.52
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
0.57-0.63
0.64-0.69
0.70-0.77
0.78-0.86
0.87-0.97
0.53-0.59
0.60-0.64
0.65-0.71
0.72-0.80
0.81-0.90
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
0.98-1.12
1.13-1.24
1.25-1.39
1.40-1.57
1.58-1.78
0.91-1.03
1.04-1.14
1.15-1.27
1.28-1.44
1.45-1.63
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
1.79-1.96
1.97-2.20
2.21-2.41
2.42-2.75
2.76-3.25
1.64-1.79
1.80-2.01
2.02-2.19
2.20-2.52
2.53-2.95
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
3.26-3.50
3.51-3.87
3.88-4.13
4.14-4.69
4.70-5.20
2.96-3.17
3.18-3.50
3.51-3.73
3.74-4.22
4.23-4.68
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
5.21-5.53
5.54-6.23
6.24-7.18
7.19-8.20
8.21-8.98
4.69-4.98
4.99-5.59
5.60-6.43
6.44-7.41
7.42-8.02
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
8.99-9.63
9.64-10.6
10.7-11.8
11.9-12.7
12.8-14.3
8.03-8.59
8.60-9.52
9.53-10.5
10.6-11.2
11.3-12.0
B14
B 15.5
B 17.5
B 19.5
B22
14.4-16.1
16.2-18.0
. . . .
. . . .
B25
B 28.0
Following Selections
for Size M-1 & M-1P Only.
. . . .
. . . .
16.2-18.3
18.4-20.2
20.3-23.0
11.3-12.7
12.8-14.3
14.4-16.1
16.2-17.8
17.9-20.1
B22
B25
B 28.0
B32
B36
23.1-26.0
. . . .
. . . .
20.2-22.6
22.7-25.5
25.6-26.0
B40
B45
B50
Following Selections
for Size M-1P Only
25.9-29.0
29.1-30.8
30.9-32.7
32.8-36.0
. . . .
. . . .
. . . .
. . . .
B45
B50
B56
B62
Table 4
Motor Full-Load
Current (Amp)
Thermal
Unit
Number
1 T.U. 3 T.U.
0.32-0.33
0.34-0.38
0.39-0.41
0.42-0.50
0.51-0.61
0.29-0.30
0.31-0.35
0.36-0.37
0.38-0.45
0.46-0.54
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
0.62-0.68
0.69-0.74
0.75-0.83
0.84-0.93
0.94-1.05
0.55-0.61
0.62-0.66
0.67-0.74
0.75-0.83
0.84-0.93
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
1.06-1.21
1.22-1.34
1.35-1.50
1.51-1.70
1.71-1.93
0.94-1.07
1.08-1.19
1.20-1.33
1.34-1.51
1.52-1.70
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
1.94-2.12
2.13-2.38
2.39-2.61
2.62-2.99
3.00-3.53
1.71-1.87
1.88-2.10
2.11-2.29
2.30-2.63
2.64-3.09
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
3.54-3.80
3.81-4.21
4.22-4.49
4.50-5.10
5.11-5.66
3.10-3.32
3.33-3.67
3.68-3.91
3.92-4.43
4.44-4.91
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
5.67-6.03
6.04-6.79
6.80-7.84
7.85-8.96
8.97-9.82
4.92-5.23
5.24-5.88
5.89-6.77
6.78-7.90
7.91-8.44
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
9.83-10.4
10.5-11.6
11.7-12.9
13.0-13.9
14.0-15.7
15.8-18.0
8.45-9.05
9.06-9.99
10.0-11.0
11.1-11.9
12.0-12.0
. . . .
B14
B 15.5
B 17.5
B 19.5
B22
B25
Following Selections
for Size M-1 & M1P Only.
. . . .
. . . .
17.8-20.1
20.2-22.2
22.3-25.3
25.4-26.0
. . . .
12.0-13.4
13.5-15.1
15.2-17.0
17.1-18.9
19.0-21.4
21.5-24.0
24.1-26.0
B22
B25
B 28.0
B32
B36
B40
B45
Following Selections
for Size M-1P Only.
25.4-28.4
28.5-33.1
33.2-36.0
. . . .
. . . .
. . . .
B40
B45
B50
Table 5
Current Transformer Ratio Thermal
Unit
Number
25/5 50/5 75/5 100/5 150/5 200/5 250/5 300/5 400/5 500/5
Motor Full-Load Current
10.6-11.7
11.8-13.2
13.3-14.8
21.1-23.6
23.7-26.5
26.6-29.6
31.7-35.4
35.5-39.8
39.9-44.5
42.3-47.2
47.3-53.1
53.2-59.4
63.4-70.9
71.0-79.7
79.8-89.1
84.5-94.6
94.7-105.
106.-118.
106.-117.
118.-132.
133.-148.
127.-141.
142.-159.
160.-177.
169.-188.
189.-212.
213.-237.
211.-236.
237.-265.
266.-296.
B 3.00
B 3.30
B 3.70
14.9-17.2
17.3-19.6
19.7-22.3
29.7-34.5
34.6-39.2
39.3-44.6
44.6-51.8
51.9-58.9
59.0-67.0
59.5-69.2
69.3-78.6
78.7-89.3
89.2-103.
104.-117.
118.-133.
119.-138.
139.-156.
157.-178.
149.-172.
173.-196.
197.-223.
178.-207.
208.-235.
236.-267.
238.-276.
277.-314.
315.-357.
297.-345.
346.-360.
. . . .
B 4.15
B 4.85
B 5.50
Table 6
Current Transformer Ratio Thermal
Unit
Number
25/5 50/5 75/5 100/5 150/5 200/5 250/5 300/5 400/5 500/5
Motor Full-Load Current
10.6-11.7
12.0-13.4
13.5-15.0
15.1-16.6
21.2-23.9
24.0-26.9
27.0-30.0
30.1-33.4
31.8-35.9
36.0-40.3
40.4-45.1
45.2-50.1
42.4-47.9
48.0-53.8
53.9-60.1
60.2-66.9
63.6-72.0
72.1-80.8
80.9-90.2
90.3-99.4
84.8-96.0
96.1-107.
108.-119.
120.-133.
106.-119.
120.-134.
135.-150.
151.-166.
127.-143.
144.-161.
162.-180.
181.-200.
170.-191.
192.-215.
216.-240.
241.-267.
212.-239.
240.-269.
270.-300.
301.-334.
AR 3.62
AR 3.98
AR 4.37
AR 4.80
16.7-18.7
18.8-20.7
20.8-22.8
33.5-37.5
37.6-41.4
41.5-45.7
50.2-56.3
56.4-62.2
62.3-68.5
67.0-75.1
75.2-82.9
83.0-91.4
100.-112.
113.-124.
125.-136.
134.-149.
150.-165.
166.-182.
167.-187.
188.-207.
208.-228.
201.-225.
226.-248.
249.-274.
268.-300.
301.-331.
332.-365.
335.-360.
. . . .
. . . .
AR 5.3
AR 5.8
AR 6.4