Square D
Thermal Unit Selection (Work
in Progress)
Table 1![](../images/sqdhtr.jpg)
*Click
here to browse our inventory of
Square D heater elements at our online store
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
0.60 - 0.66
0.67 - 0.73
0.74 - 0.81
0.82 - 0.91
0.92 - 1.02
1.03 - 1.14
1.15 - 1.29
1.30 - 1.42
1.43 - 1.64
1.65 - 1.80
1.81 - 2.10
2.11 - 3.20
2.31 - 2.61
2.62 - 2.99
3.00 - 3.37
3.38 - 3.94
3.95 - 4.24
4.25 - 4.54
4.55 - 5.29
5.30 - 5.73
4.74 - 6.35
6.36 - 7.08
7.09 - 7.83
7.84 - 8.47
8.48 - 9.83
9.84 - 10.5
10.6 - 11.4
11.5 - 12.8
12.9 - 13.9
14.0 - 16.1
16.2 - 18.0 |
0.29 - 0.32
0.33 - 0.36
0.37 - 0.39
0.40 - 0.47
0.48 - 0.56
0.57 - 0.63
0.64 - 0.69
0.70 - 0.77
0.78 - 0.86
0.87 - 0.96
0.97 - 1.11
1.12 - 1.23
1.24 - 1.37
1.38 - 1.55
1.56 - 1.75
1.76 - 1.92
1.93 - 2.16
2.17 - 2.50
2.51 - 2.81
2.82 - 3.16
3.17 - 3.40
3.41 - 3.76
3.77 - 4.00
4.01 - 4.68
4.69 - 5.18
5.19 - 5.51
5.52 - 6.19
6.20 - 7.12
7.13 - 8.15
8.16 - 8.60
8.61 - 9.21
9.22 - 10.1
10.2 - 11.2
11.3 - 12.0
-
- |
B
0.44
B 0.51
B 0.57
B 0.63
B 0.71
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
B 14
B 15.5
B 17.5
B 19.5
B 22
B 25 |
Following
Selections for Size M-1 & M01P 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
B 22
B 25
B 28.0
B 32
B 36
B 40
B 45 |
Following
Selections for Size M-1P Only |
23.2 - 27.1
27.2 - 29.2
29.3 - 33.0
33.1 - 36.0 |
-
-
-
- |
B
36
B 40
B 45
B 50 |
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Table 2
*Click
here to browse our inventory of
Square D heater elements at our online store
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
0.64 - 0.71
0.72 - 0.78
0.79 - 0.88
0.89 - 0.99
1.00 - 1.15
1.16 - 1.23
1.24 - 1.43
1.44 - 1.51
1.52 - 1.75
1.76 - 1.93
1.94 - 2.25
2.26 - 2.47
2.48 - 2.81
2.82 - 3.20
3.21 - 3.63
3.64 - 4.19
4.20 - 4.53
4.54 - 4.89
4.90 - 5.68
5.69 - 6.27
6.28 - 6.85
6.86 - 7.73
7.74 - 8.50
8.51 - 9.29
9.30 - 10.4
10.5 - 11.3
11.4 - 12.3
12.4 - 13.9
14.0 - 15.0
15.1 - 18.0 |
0.30 - 0.32
0.33 - 0.37
0.38 - 0.39
0.40 - 0.48
0.49 - 0.57
0.58 - 0.64
0.65 - 0.70
0.71 - 0.78
0.79 - 0.87
0.88 - 0.98
0.99 - 1.13
1.14 - 1.25
1.26 - 1.40
1.41 - 1.58
1.59 - 1.79
1.80 - 1.91
1.92 - 2.20
2.21 - 2.55
2.56 - 2.87
2.88 - 3.24
3.25 - 3.48
3.49 - 3.85
3.86 - 4.10
4.11 - 4.79
4.80 - 5.31
5.32 - 5.65
5.66 - 6.35
6.36 - 7.31
7.32 - 8.34
8.35 - 8.84
8.85 - 9.47
9.48 - 10.4
10.5 - 11.5
11.6 - 12.0
- |
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
B 14
B 15.5
B 17.5
B 19.5
B 22 |
Following
Selections for Size M-1 & M01P Only |
-
15.7 - 17.4
17.5 - 19.2
19.3 - 22.0
22.1 - 24.6
24.7 - 26.0
-
- |
11.6 - 12.4
12.5 - 14.0
14.1 - 15.8
15.9 - 17.8
17.9 - 19.7
19.8 - 22.4
22.5 - 25.1
25.1 - 26.0 |
G19.5
B 22
B 25
B 28.0
B 32
B 36
B 40
B 45 |
Following
Selections for Size M-1P Only |
24.7 - 29.1
29.2 - 31.7
31.8 - 36.0 |
-
-
- |
B 36
B 40
B 45 |
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Table 3
*Click
here to browse our inventory of
Square D heater elements at our online store
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
0.57 - 0.63
0.64 - 0.69
0.70 - 0.77
0.78 - 0.86
0.87 - 0.97
0.98 - 1.12
1.13 - 1.24
1.25 - 1.39
1.40 - 1.57
1.57 - 1.78
1.79 - 1.96
1.97 - 2.20
2.21 - 2.41
2.42 - 2.75
2.76 - 3.25
3.26 - 3.50
3.51 - 3.87
3.88 - 4.13
4.14 - 4.69
4.70 - 5.20
5.21 - 5.53
5.54 - 6.23
6.24 - 7.18
7.19 - 8.20
8.21 - 8.98
8.99 - 9.63
9.64 - 10.6
10.7 - 11.8
11.9 - 12.7
12.8 - 14.3
14.4 - 16.1
16.2 - 18.0 |
0.28 - 0.29
0.30 - 0.33
0.34 - 0.36
0.37 - 0.44
0.45 - 0.52
0.53 - 0.59
0.60 - 0.64
0.65 - 0.71
0.72 - 0.80
0.81 - 0.90
0.91 - 1.03
1.04 - 1.14
1.15 - 1.27
1.28 - 1.44
1.45 - 1.63
1.64 - 1.79
1.80 - 2.0
20.2 - 2.19
2.20 - 2.52
2.53 - 2.95
2.96 - 3.17
3.18 - 3.50
3.51 - 3.73
3.74 - 4.22
4.23 - 4.68
4.69 - 4.98
4.99 - 5.59
5.60 - 6.43
6.44 - 7.41
7.42 - 8.02
8.03 - 8.59
8.60 - 9.52
9.53 - 10.5
10.6 - 11.2
11.3 - 10.0
-
- |
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
B 14
B 15.5
B 17.5
B 19.5
B 22
B 25
B 28.0 |
Following
Selections for Size M-1 & M01P Only |
-
-
16.2 - 18.3
18.4 - 20.2
20.3 - 23.0
23.1 - 26.0
-
- |
11.3 - 12.7
12.8 - 14.3
14.4 - 16.1
16.2 - 17.8
17.9 - 20.1
20.2 - 22.6
22.7 - 25.5
25.6 - 26.0 |
B 22
B 25
B 28.0
B 32
B 36
B 40
B 45
B 50 |
Following
Selections for Size M-1P Only |
25.9 - 29.0
29.1 - 30.8
30.9 - 32.7
32.8 - 36.0 |
-
-
-
- |
B 45
B 50
B 56
B 62 |
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Table 4
*Click
here to browse our inventory of
Square D heater elements at our online store
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
0.62 - 0.68
0.69 - 0.74
0.75 - 0.83
0.84 - 0.93
0.94 - 1.05
1.06 - 1.21
1.22 - 1.34
1.35 - 1.50
1.51 - 1.70
1.71 - 1.93
1.94 - 2.12
2.13 - 2.38
2.39 - 2.61
2.62 - 2.99
3.00 - 3.53
3.54 - 3.80
3.81 - 4.21
4.22 - 4.49
4.50 - 5.10
5.11 - 5.66
5.67 - 6.03
6.04 - 6.79
6.80 - 7.84
7.85 - 8.96
8.97 - 9.82
9.83 - 10.4
10.5 - 11.6
11.7 - 12.9
13.0 - 13.9
14.0 - 15.7
15.8 - 18.0 |
0.29 - 0.30
0.31 - 0.35
0.36 - 0.37
0.38 - 0.45
0.46 - 0.54
0.55 - 0.61
0.62 - 0.66
0.67 - 0.74
0.75 - 0.83
0.84 - 0.93
0.94 - 1.07
1.08 - 1.19
1.20 - 1.33
1.34 - 1.51
1.52 - 1.70
1.71 - 1.87
1.88 - 2.10
2.11 - 2.29
2..0 - 2.63
2.64 - 3.09
3.10 - 3.32
3.33 - 3.67
3.68 - 3.91
3.92 - 4.43
4.44 - 4.91
4.92 - 5.23
5.24 - 5.88
5.89 - 6.77
6.78 - 7.90
7.91 - 8.44
8.45 - 9.05
9.06 - 9.99
10.0 - 11.0
11.1 - 11.9
12.0 - 12.0
- |
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
B 14
B 15.5
B 17.5
B 19.5
B 22
B 25 |
Following
Selections for Size M-1 & M01P 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 |
B 22
B 25
B 28.0
B 32
B 36
B 40
B 45 |
Following
Selections for Size M-1P Only |
25.4 - 28.4
28.5 - 33.1
33.2 - 36.0 |
-
-
- |
B 40
B 45
B 50 |
Table 13
*Click
here to browse our inventory of
Square D heater elements at our online store
Motor Full-Load Current (Amp.) |
Thermal Unit Number |
1 T.U. |
3 T.U. |
0.29 - 0.31
0.32 - 0.34
0.35 - 0.38
0.39 - 0.45
0.46 - 0.54
0.55 - 0.61
0.62 - 0.66
0.67 - 0.73
0.74 - 0.81
0.82 - 0.94
0.95 - 1.05
1.06 - 1.22
1.23 - 1.34
1.35 - 1.51
1.52 - 1.71
1.72 - 1.93
1.94 - 2.14
2.15 - 2.40
2.41 - 2.72
2.73 - 3.15
3.16 - 3.55
3.56 - 4.00
4.01 - 4.40
4.41 - 4.88
4.89 - 5.19
5.20 - 5.73
5.74 - 6.39
6.40 - 7.13
7.14 - 7.90
7.91 - 8.55
8.56 - 9.53
9.54 - 10.6
10.7 - 11.8
11.9 - 13.2
13.3 - 14.9
15.0 - 16.6
16.7 - 18.0 |
0.28 - 0.30
0.31 - 0.34
0.35 - 0.37
0.38 - 0.44
0.45 - 0.53
0.54 - 0.59
0.60 - 0.64
0.65 - 0.72
0.73 - 0.80
0.81 - 0.90
0.91 - 1.03
1.04 - 1.14
1.15 - 1.27
1.28 - 1.43
1.44 - 1.62
1.63 - 1.77
1.78 - 1.97
1.98 - 2.32
2.33 - 2.51
2.52 - 2.99
3.00 - 3.42
3.43 - 3.75
3.76 - 3.98
3.99 - 4.48
4.49 - 4.93
4.94 - 5.21
5.22 - 5.84
5.85 - 6.67
6.68 - 7.54
7.55 - 8.14
8.15 - 8.72
8.73 - 9.66
9.67 - 10.5
10.6 - 11.3
11.4 - 12.0
-
- |
B 0.44
B 0.51
B 0.57
B 0.63
B 0.71
B 0.81
B 0.92
B 1.03
B 1.16
B 1.30
B 1.45
B 1.67
B 1.88
B 2.10
B 2.40
B 2.65
B 3.00
B 3.30
B 3.70
B 4.15
B 4.85
B 5.50
B 6.25
B 6.90
B 7.70
B 8.20
B 9.10
B 10.2
B 11.5
B 12.8
B 14
B 15.5
B 17.5
B 19.5
B 22
B 25
B 28.0 |
Following
Selections for Size 1 Only |
-
-
16.7 - 18.9
19.0 - 21.2
21.3 - 23.0
23.1 - 25.5
25.6 - 26.0
- |
11.4 - 12.7
12.8 - 14.1
14.2 - 15.9
16.0 - 17.5
17.6 - 19.7
19.8 - 21.9
22.0 - 24.4
24.5 - 26.0 |
B 22
B 25
B 28.0
B 32
B 36
B 40
B 45
B 50 |
Table 18 *Click
here to browse our inventory of
Square D heater elements at our online store
Motor Full-Load Current (Amp.) |
Thermal Unit Number |
1 T.U. |
3 T.U. |
15.5 - 16.4
16.5 - 17.6
17.7 - 19.1
19.2 - 20.4
20.5 - 22.1
22.2 - 23.4
23.5 - 25.6
25.7 - 27.3
27.4 - 29.4
29.5 - 31.5
31.6 - 33.7
33.8 - 36.5
36.6 - 39.1
39.2 - 41.7
41.8 - 44.8
44.9 - 48.0
48.1 - 50.7
50.8 - 54.9
55.0 - 59.9
60.0 - 63.3
63.4 - 67.2
67.3 - 72.4
72.5 - 74.9
75.0 - 77.4
77.5 - 80.7
80.8 - 83.1
83.2 - 86.0
|
13.6 - 14.5
14.6 - 15.5
15.6 - 17.4
17.5 - 18.5
18.6 - 19.9
20.0- 21.5
21.6 - 22.9
23.0 - 24.5
24.6 - 26.3
26.4 - 28.2
28.3 - 30.0
30.1 - 32.3
32.4 - 34.9
35.0 - 37.6
37.7- 40.0
40.1 - 42.8
42.9 - 45.3
45.4 - 49.1
49.2 - 53.4
53.5 - 57.4
57.5 - 61.3
61.4- 63.5
63.6- 66.3
66.4 - 69.0
69.1- 70.9
71.0 - 73.7
73.8 - 76.5
76.6 - 78.4
78.5 - 86.0
- |
CC 20.9
CC 22.8
CC 24.6
CC 26.3
CC 28.8
CC 31.0
CC 33.3
CC 36.4
CC 39.6
CC 42.7
CC 46.6
CC 50.1
CC 54.5
CC 59.4
CC 64.3
CC 68.5
CC 74.6
CC 81.5
CC 87.7
CC 94.0
CC 103
CC 112
CC 121
CC 132
CC 143
CC156
CC167
CC180
CC 196
|
Table 49
*Click
here to browse our inventory of
Square D heater elements at our online store
Motor Full-Load Current (Amp.) |
Thermal Unit Number |
82.5 - 88.2 |
CC 64.3 |
88.3 - 95.9 |
CC 68.5 |
96.0 - 102 |
CC 74.6 |
103 - 109 |
CC 81.5 |
110 - 121 |
CC 87.7 |
122 - 139 |
CC 94.0 |
140 - 154 |
CC 103 |
155 - 163 |
CC 112 |
164 - 175 |
CC 121 |
176 - 184 |
CC 132 |
185 - 195 |
CC 143 |
195 - 215 |
CC 156 |
216 - 224 |
CC 167 |
225 - 243 |
CC 180 |
244 - 266 |
CC 196 |
124 - 133 |
CC 208 |
|
CC 219 |
Table 54
*Click
here to browse our inventory of
Square D heater elements at our online store
Motor Full-Load Current (Amp.) |
Thermal Unit Number |
2 T.U. |
3 T.U. |
43.6 - 45.5 |
41.1 - 43.5 |
CC 64.3 |
45.5 - 49.6 |
43.6 - 46.8 |
CC 68.5 |
49.7 - 53.1 |
46.9 - 50.0 |
CC 74.6 |
53.2 - 57.6 |
50.1 - 54.9 |
CC 81.5 |
57.7 - 62.4 |
55.0 - 57.5 |
CC 87.7 |
62.5 - 67.5 |
57.6 - 61.8 |
CC 94.0 |
67.6 - 71.1 |
61.9 - 66.2 |
CC 103 |
71.2 - 75.9 |
66.3 - 72.4 |
CC 112 |
76.0 - 81.9 |
72.5 - 78.1 |
CC 121 |
82.0 - 84.6 |
78.2 - 80.7 |
CC 132 |
84.7 - 90.7 |
80.8 - 86.5 |
CC 143 |
90.8 - 98.4 |
86.6 - 93.9 |
CC 156 |
98.5 - 105 |
94.0 - 100 |
CC 167 |
106 - 117 |
101 - 112 |
CC 180 |
118 - 123 |
113 - 117 |
CC 196 |
124 - 133 |
118 - 123 |
CC 208 |
|
124 - 133 |
CC 219 |
Table 56
*Click
here to browse our inventory of
Square D heater elements at our online store
Motor Full-Load Current (Amp.) |
Thermal Unit Number |
2 T.U. |
3 T.U. |
3.29 - 3.74 |
3.18 -3.40 |
B 4.85 |
3.75 - 4.23 |
3.41 - 3.76 |
B 5.50 |
4.24 - 4.68 |
3.77 - 4.00 |
B 6.25 |
4.69 - 5.22 |
4.01 - 4.57 |
B
6.90 |
5.23 - 5.67 |
4.58 - 5.03 |
B 7.70 |
5.68 - 6.13 |
5.04 - 5.32 |
B 8.20 |
6.14 - 6.91 |
5.33 - 5.97 |
B 9.10 |
6.92 - 7.70 |
5.98 - 6.88 |
B 10.2 |
7.71 - 8.56 |
6.89 - 7.82 |
B 11.5 |
8.57 - 9.39 |
7.83 - 8.47 |
B 12.8 |
9.40 - 10.4 |
8.48 - 9.15 |
B 14 |
10.5 - 11.6 |
9.16 - 10.1 |
B 15.5 |
11.7 - 12.9 |
10.2 - 11.2 |
B 17.5 |
13.0 - 14.6 |
11.3 - 12.0 |
B 19.5 |
14.7 - 16.5 |
12.1 - 13.6 |
B 22 |
16.6 - 18.5 |
13.7 - 15.2 |
B 25 |
18.6 - 21.0 |
15.3 - 17.1 |
B 28.0 |
21.1 - 23.6 |
17.2 - 19.0 |
B 32 |
23.7 - 26.3 |
19.1 - 21.5 |
B 36 |
26.4 - 29.3 |
21.6 - 24.1 |
B 40 |
29.4 - 35.1 |
24.2 - 27.0 |
B 45 |
35.2 - 36.1 |
27.1 - 28.7 |
B 50 |
36.2 - 39.1 |
28.8 - 30.4 |
B 56 |
39.2 - 41.5 |
30.5 - 32.2 |
B 62 |
41.6 - 45.0 |
32.3 - 35.4 |
B 70 |
|
35.5 - 38.2 |
B 79 |
|
38.3 - 45.0 |
B 88 |
|