Brochure

© 1998 Square D All Rights Reserved
28
5/98
Thermal Unit Selection
Tables 19 thru 30
Table 22
Motor
Full-Load
Current
(Amp)
Thermal
Unit
Number
92.0-100.
101.-109.
110.-119.
120.-131.
132.-139.
DD 112
DD 121
DD 128
DD 140
DD 150
140.-156.
157.-166.
167.-180.
181.-189.
190.-209.
DD 160
DD 185
DD 213
DD 220
DD 230
210.-225.
226.-238.
239.-266.
DD 250
DD 265
DD 280
Table 26
Size 7 Size 8
Thermal
Unit
Number
Type J Type K
Current Transformer
Ratio
120/5 2000/5
Motor Full-
Load Current
166.-187.
188.-211.
212.-232.
233.-267.
268.-301.
277.-312.
313.-352.
353.-388.
389.-445.
446.-503.
B 1.03
B 1.16
B 1.30
B 1.45
B 1.67
302.-336.
337.-383.
384.-425.
426.-466.
467.-522.
504.-561.
562.-640.
641.-708.
709.-777.
778.-870.
B 1.88
B 2.10
B 2.40
B 2.65
B 3.00
523.-587.
588.-656.
657.-764.
871.-978.
979.-1093.
1094.-1215.
B 3.30
B 3.70
B 4.15
Table 29
Motor Full-Load
Current
Thermal
Unit
Number
50.0-55.9
56.0-60.9
61.0-65.9
66.0-69.9
70.0-75.9
E 88
E 89
E 91
E 92
E 93
76.0-81.9
82.0-86.9
87.0-92.9
93.0-97.9
98.0-107.9
E 94
E 96
E 97
E 98
E 99
108.0-113.9
114.0-125.9
E 101
E 102
Table 30
Motor Full-Load
Current (Amp)
Thermal
Unit
Number
Large
Enclosure
Small
Enclosure
39.0-42.9
43.0-48.0
48.1-54.7
37.0-40.8
40.9-45.6
45.7-51.8
AU 44
AU 50
AU 56
54.8-62.2
62.3-71.3
71.4-76.0
51.9-58.8
58.9-67.4
67.5-70.4
AU 64
AU 72
AU 81
76.1-85.5
85.6-92.4
92.4-103.
70.5-79.4
79.5-86.3
86.4-96.7
AU 88
AU 99
AU 110
104.-111.
112.-123.
124.-133.
96.8-105.
106.-117.
118.-133.
AU 123
AU 135
AU 152
Table 20
Motor
Full-Load
Current
(Amp)
Thermal
Unit
Number
133.-148.
149.-174.
175.-195.
196.-219.
220.-239.
B 1.30
B 1.45
B 1.67
B 1.88
B 2.10
240.-271.
272.-308.
309.-348.
349.-397.
398.-429.
B 2.40
B 2.65
B 3.00
B 3.30
B 3.70
430.-495.
496.-520.
B 4.15
B 4.85
Table 24
Motor
Full-Load
Current
(Amp)
Thermal
Unit
Number
88.2-95.1
95.2-1.10
102.-111.
112.-119.
120.-131.
DD 112
DD 121
DD 128
DD 140
DD 150
132.-149.
150.-170.
171.-180.
181.-197.
198.-204.
DD 160
DD 185
DD 220
DD 240
DD 250
205.-213.
214.-237.
238.-243.
244.-266.
DD 265
DD 280
DD 300
DD 320
Table 27
Motor Full-Load
Current (Amp)
Thermal
Unit
Number
2 or 3 T.U.
Large
Enclosure
Small
Enclosure
4.32-4.93
4.94-5.40
5.41-5.95
5.96-6.13
6.14-6.81
4.14-4.71
4.72-5.18
5.19-5.74
5.75-5.98
5.99-6.47
AR 8.5
AR 9.3
AR 10.2
AR 11.2
AR 12.4
6.82-7.84
7.85-8.97
8.98-10.1
10.2-11.6
11.7-13.2
6.48-7.42
7.43-8.46
8.47-9.56
9.57-10.9
11.0-12.3
AR 13.6
AR 15.4
AR 17.6
AR 20.5
AR 23
13.3-15.0
15.1-17.1
17.2-19.6
19.7-21.9
22.0-23.8
12.4-14.0
14.1-15.9
16.0-18.1
18.2-20.3
20.4-22.0
AR 27
AR 30
AR 35
AR 40
AR 44
23.9-25.6
25.7-27.9
28.0-30.5
30.6-33.0
33.1-35.7
22.1-23.6
23.7-25.5
25.6-27.8
27.9-30.0
30.1-32.4
AR 47
AR 51
AR 55
AR 60
AR 66
35.8-39.5
39.6-41.5
41.6-45.0
. . . .
32.5-35.7
35.8-38.3
38.4-40.9
41.6-45.0
AR 72
AR 79
AR 86
AR 94
Table 19
Motor
Full-Load
Current
(Amp)
Thermal
Unit
Number
43.6-47.3
47.4-51.3
51.4-54.6
54.7-59.7
59.8-65.1
CC 54.5
CC 59.4
CC 64.3
CC 68.5
CC 74.6
65.2-70.1
70.2-75.1
75.2-82.2
82.3-89.2
89.3-96.5
CC 81.5
CC 87.7
CC 94.0
CC 103
CC 112
96.6-104.
105.-113.
114.-123.
124.-133.
CC 121
CC 132
CC 143
CC 156
Table 23
Moter
Full-Load
Current (Amp)
Thermal
Unit
Number
2 or 3 T.U.
Large
Enclosure
Small
Enclosure
0.31-0.32
0.33-0.36
0.37-0.39
0.40-0.43
0.44-0.47
0.29-0.30
0.31-0.33
0.34-0.37
0.38-0.41
0.42-0.45
AR .45
AR .49
AR .54
AR .59
AR .65
0.48-0.52
0.53-0.58
0.59-0.60
0.61-0.62
0.63-0.69
0.46-0.50
0.51-0.55
0.56-0.57
0.58-0.60
0.61-0.66
AR .71
AR .78
AR .86
AR .95
AR 1.05
0.70-0.76
0.77-0.84
0.85-0.93
0.94-1.03
1.04-1.23
0.67-0.73
0.74-0.81
0.82-0.90
0.91-0.99
1.00-1.18
AR 1.15
AR 1.26
AR 1.39
AR 1.53
AR 1.68
1.24-1.35
1.36-1.47
1.48-1.61
1.62-1.76
1.77-1.93
1.19-1.30
1.31-1.42
1.43-1.49
1.50-1.69
1.70-1.85
AR 1.85
AR 2.04
AR 2.24
AR 2.46
AR 2.71
1.94-2.12
2.13-2.35
2.36-2.61
2.62-2.79
2.80-3.14
1.86-2.03
2.04-2.25
2.26-2.50
2.51-2.68
2.69-3.01
AR 2.98
AR 3.28
AR 3.62
AR 3.98
AR 4.37
3.15-3.48
3.49-3.89
3.90-4.30
4.31-4.73
4.74-5.20
3.02-3.35
3.36-3.74
3.75-4.14
4.15-4.57
4.58-5.03
AR 4.80
AR 5.3
AR 5.8
AR 6.4
AR 7.0
5.21-5.95
5.96-6.49
6.50-7.08
7.09-7.77
7.78-8.48
5.04-5.76
5.77-6.29
6.30-6.87
6.88-7.54
7.55-8.25
AR 7.7
AR 8.5
AR 9.3
AR 10.2
AR 11.2
8.49-9.15
9.16-10.3
10.4-11.9
12.0-13.4
13.5-15.4
8.26-8.60
8.61-9.63
9.64-11.1
11.2-12.5
12.6-14.3
AR 12.4
AR 13.6
AR 15.4
AR 17.6
AR 20.5
15.5-17.5
17.6-19.8
19.9-22.5
22.6-26.0
. . . .
14.4-16.1
16.2-18.2
18.3-20.6
20.7-23.4
23.5-26.0
AR 23
AR 27
AR 30
AR 35
AR 40
Table 21
Motor
Full-Load
Current
(Amp)
Thermal
Unit
Load
128.140.
141.-163.
164.-179
1.80-201.
202.-227.
B 1.30
B 1.45
B 1.67
B 1.88
B 2.01
228.-251.
252.-278.
279.-308.
309.-346.
347.-380.
B 2.40
B 2.65
B 3.00
B 3.30
B 3.70
381.-426.
427.-454.
455.-489.
490.-520.
B 4.15
B 4.85
B 5.50
B 6.25
Table 25
Motor
Full-Load
Current
(Amp)
Thermal
Unit
Number
0.28-0.30
0.31-0.33
0.34-0.36
0.37-0.39
0.40-0.42
AR .45
AR .49
AR .54
AR .59
AR .65
0.43-0.46
0.47-0.50
0.51-0.52
0.53-0.56
0.57-0.60
AR .71
AR .78
AR .86
AR .95
AR 1.05
0.61-0.66
0.67-0.73
0.74-0.81
0.82-0.90
0.91-1.05
AR 1.15
AR 1.26
AR 1.39
AR 1.53
AR 1.68
10.6-1.15
1.16-1.25
1.26-1.35
1.36-1.47
1.48-1.56
AR 1.85
AR 2.04
AR 2.24
AR 2.46
AR 2.71
1.59-1.74
1.75-1.94
1.95-2.20
2.21-2.47
2.48-2.96
AR 2.98
AR 3.28
AR 3.62
AR 3.98
AR 4.37
2.77-3.07
3.08-3.45
3.46-3.81
3.46-3.81
3.82-4.20
AR 4.80
AR 5.3
AR 5.3
AR 5.8
AR 6.4
4.21-4.65
4.66-5.29
5.30-5.84
5.85-6.27
6.28-7.00
AR 7.0
AR 7.7
AR 8.5
AR 9.3
AR 10.2
Table 28
Motor Full-Load
Current (Amp)
Thermal
Unit
Number
2 or 3 T.U.
Large
Enclosure
Small
Enclosure
45.3-48.2
48.3-52.4
52.5-56.4
56.5-61.2
61.3-66.1
40.3-42.8
42.9-46.2
46.3-49.8
49.9-54.9
55.0-57.9
CC 64.3
CC 68.5
CC 74.6
CC 81.5
CC 87.7
66.2-71.4
71.5-77.0
77.1-80.7
80.8-87.7
87.8-94.9
58.0-62.5
62.6-67.3
67.4-73.4
73.5-78.9
79.0-84.9
CC 94.0
CC 103
CC 112
CC 121
CC 132
95.0-102.
103.-110.
111.-117.
118.-133.
. . . .
85.0-91.0
91.1-97.2
97.3-104.
105.-121.
122.-133.
CC 143
CC 156
CC 167
CC 180
CC 196