Cutler Hammer Citation A10 Overload Relay Heater Elements for Motor Protection

Cutler Hammer Citation A10 heater coils protect 40°C rise motors, and open motors that have a service factor of 1.15, as well as 50°, 55°, and 75° C rise motors, enclosed motors with a service factor of 1.0. The ultimate tripping current of heater coils is approximately 1.25 times what is listed as the minimum current in the tables. For reliable protection, select the heater coils based on the full load rating shown on the motor nameplate.

Index of overload relay heater coil selection tables

Catalog Number

Type

Heater Coil Selection Table Numbers

NEMA Size of Starter

00-0-1
(1-1/2)

2

3

4

5

6

7

8

A10

Open Enclosed

ST-1
ST-2

ST-3
ST-4

ST-5
ST-6

ST-7
ST-7

ST-16
ST-16

ST-10
ST-10

ST-11
ST-11

ST-12
ST-12

A11

Open Enclosed

BNC-1 BNC-2

BNC-3
BNC-4

BNC-5
BNC-6

BNC-7
BNC-7

BNC-9
BNC-9

 

 

 

A13

Open Enclosed

LT-2
LT-1

LT-4
LT-3

LT-6
LT-5

LT-7
LT-7

LT-8
LT-8

 

 

 

A30 & A40

Enclosed

ST-9

ST-3

ST-6

ST-7

ST-16

ST-10

ST-11

ST-12

A31 & A40

Enclosed

BNC-8

BNC-3

BNC-6

BNC-7

BNC-9

 

 

 

A50

Open Enclosed

ST-1
ST-2

ST-3
ST-4

ST-5
ST-6

ST-7
ST-7

 

ST-10
ST-10

ST-11
ST-11

ST-12
ST-12

A51

Enclosed

BNC-1 BNC-2

BNC-3
BNC-4

BNC-5
BNC-6

BNC-7
BNC-7

BNC-9
BNC-9

 

 

 

A70 & A80

Enclosed

ST-9

ST-3

ST-5

ST-7

ST-16

ST-10

ST-11

ST-12

A71 & A81

Enclosed

BNC-8

BNC-3

BNC-5

BNC-7

BNC-9

 

 

 

A400 - A420

Enclosed

 

 

ST-14

ST-15

ST-16

ST-10

ST-11

ST-12

A460

Enclosed

ST-21

ST-41

ST-61

ST-71

ST-161

ST-101

ST-111

ST-121

A490

Enclosed

ST-22

ST-42

ST-62

ST-72

ST-162

ST-102

ST-112

ST-122

A700

Open Enclosed

ST-1
ST-2

ST-3
ST-4

ST-5
ST-6

ST-7
ST-7

ST-16
ST-16

-
ST-10

 

 

A800-A803

Enclosed

ST-9

ST-3

ST-5

ST-7

ST-16

ST-10

ST-11

 

A804-A806

Enclosed

ST-9

ST-3

ST-5

 

 

 

 

 

A808-A809

Enclosed

 

ST-13

ST-5

ST-5

 

 

 

 

B10 B50

Enclosed

ST-1

ST-3

ST-5

ST-7

 

 

 

 

B11 & B51

Open Enclosed

BNC-1 BNC-2

-
BNC-3

-
BNC-5

 

 

 

 

 

C300

Open & Enclosed

ST-1

ST-3

ST-5

ST-7

 

 

 

 

C301

Open & Enclosed

BNC-1

BNC-4

BNC-5

BNC-7

 

 

 

 

C303

Open & Enclosed

LT-2

LT-4

LT-6

LT-7

 

 

 

 

1Select heater coils for 50% of rated full load current 
2Select heater coils for 58% of rated full load current

 

Selection Tables for Type ST Standard Trip
Eutectic Allow Overload Relay

For Motors With 1.15 Service Factor

Table ST-1

Table ST-2

Table ST-3

Table ST-4

Table ST-5

Table ST-6

Heater Coil

 Catalog Number

NEMA Sizes 00, 0, 1, 1 1/2

NEMA Size 2

NEMA Size 3

For Open Type 

Car. No. A10, A50, 

A700, B10, B50, C300

 For Enclosed Type 

Cat No. B10, B50, C300

For Enclosed Type

 Cat. No. A10, 

A50,A4601,

 A4902, A700

For Open Type 

Cat. No. A10, A50,

 A700, B10, B50, C300

 For Enclosed Type

 Cat No. B10, C300,

 A30,A40, A70, A80,

 A800-A803

For Enclosed Type 

Cat. No. A10, A50,

 A4601, A4902, A700

For Open Type 

Cat. No. A10, A50,

 A700, B10, B50, C300

 For Enclosed Type

 Cat. No. A70, A80, 

A800-A803, 

A808-A809, B10

For Enclosed Type 

Cat. No. A10, A50,

 A4601,A4902, A700

.167 -.187
.188 - .210
.211 - .237
.238 - .266
.267 - .298

.155 - .173
.174 - .195
.196 - .220
.221 - .247
.248 - .278

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

H1101
H1102
H1103
H1104
H1105

.299 - .334
.335 - .376
.377 - .422
.423 - .474
.475 - .532

.279 - .310
.311 - .349
.350 - .391
.392 - .441
.442 - .495

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

H1106
H1107
H1108
H1109
H1110

.533 - .598
.599 - .672
.673 - .757
.758 - .855
.856 - .959

.496 - .555
.556 - .624
.625 - .703
.704 - .795
.796 - .895

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

H1111
H1112
H1113
H1114
H1115

.960 - 1.07
1.08 - 1.21

.896 - .999
1.00 - 1.12

-
-

-
-

-
-

-
-

H1116
H1117

1.22 - 1.35
1.36 - 1.52
1.53 - 1.70

1.13 - 1.25
1.26 - 1.41
1.42 - 1.58

-
-
-

-
-
-

-
-
-

-
-
-

H1018
H1019
H1020

1.71 - 1.90
1.91 - 2.10
2.11 - 2.33
2.34 - 2.62
2.63 - 2.93

1.59 - 1.77
1.78 - 1.96
1.97 - 2.17
2.18 - 2.44
2.45 - 2.72

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

-
-
-
-
-

H1021
H1022
H1023
H1024
H1025

2.94 - 3.27
3.28 - 3.64
3.65 - 4.06
4.07 - 4.55
4.56 - 5.03

2.73 - 3.04
3.05 - 3.38
3.39 - 3.73
3.74 - 4.18
4.19 - 4.63

-
-
3.72 - 4.10
4.11 - 4.59
4.60 - 5.07

-
-
-
3.86 - 4.31
4.32 - 4.77

 

 

H1026
H1066
H1027
H1028
H1039

5.04 - 5.59
5.60 - 6.25
6.26 - 6.92
6.93 - 7.75
7.76 - 8.63

4.64 - 5.15
5.16 - 5.68
5.69 - 6.30
6.31 - 7.05
7.06 - 7.76

5.08 - 5.65
5.66 - 6.29
6.30 - 7.00
7.01 - 7.82
7.83 - 8.79

4.78 - 5.31
5.32 - 5.90
5.91 - 6.55
6.56 - 7.33
7.34 - 8.15

-
-
-
-
8.32 - 9.27

-
-
-
-
8.24 - 9.19

H1030
H1031
H1032
H1033
H1034

8.64 - 9.59
9.60 - 10.6
10.7 - 11.9
12.0 - 13.3
13.4 - 14.7

7.77 - 8.63
8.64 - 9.51
9.52 - 10.5
10.6 - 11.8
11.9 - 13.1

8.80 - 9.67
9.68 - 10.8
10.9 - 12.0
12.1 - 13.4
13.5 - 14.9

8.16 - 9.03
9.04 - 10.1
10.2 - 11.2
11.3 - 12.5
12.6 - 13.9

9.28 - 10.1
10.2 - 11.4
11.5 - 12.8
12.9 - 14.3
14.4 - 16.0

9.20 - 10.1
10.2 - 11.3
11.4 - 12.7
12.8 - 14.1
14.2 - 15.8

H1035
H1036
H1037
H1038
H1039

14.8 - 16.6
16.7 - 18.8
18.9 - 21.2
21.3 - 23.9
24.0 - 27.0 

13.2 - 14.8
14.9 - 16.7
16.8 - 18.9
19.0 - 21.3
21.4 - 24.1

15.0 - 17.6
17.7 - 19.0
19.1 - 21.5
21.6 - 24.5
24.6 - 27.9

14.0 - 15.7
15.8 - 17.5
17.6 - 19.8
19.9 - 22.3
22.4 - 25.4

16.1 - 17.8
17.9 - 20.3
20.4 - 22.9
23.0 - 26.0
26.1 - 29.5

15.9 - 17.7
17.8 - 20.1
20.2 - 22.7
22.8 - 25.5
25.6 - 28.9

H1040
H1041
H1042
H1043
H1044

 

24.2 - 27.0
-
-
-
-

28.0 - 32.0
32.1 - 36.6
36.7 - 41.8
41.9 - 45.
-

25.5 - 28.7
28.8 - 32.5
32.6 - 36.6
36.7 - 41.0
41.1 - 45

29.6 - 33.5
33.6 - 37.8
37.9 - 42.8
42.9 - 48.5
48.6 - 55.1

29.0 - 32.5
32.6 - 36.7
36.8 - 41.0
41.1 - 46.0
46.1 - 51.8

H1045
H1046
H1047
H1048
H1049

 

 

 

 

55.2 - 62.3
62.4 - 69.5
69.6 - 79.1
79.2 - 90.0
-

51.9 - 58.6
58.7 - 64.6
64.7 - 72.7
72.8 - 83.1
83.2 - 90.0

H1050
H1051
H1052
H1053
H1054

1Select heater coils for 50% of rated full load current 
2Select heater coils for 58% of rated full load current              [Back To Top]

 

Table ST-7

Heater Coil Catalog Number

NEMA Size 4

For Open Type Cat. No. A10, A50, C300
For Enclosed Type Cat. No. A10, A30, A40, A50, A70, A80, A4601, A4902, A700, A800-A803

Heater Coil Ampere Range

-
-
-
-
-

H1034
H1035
H1036
H1037
H1038

-
-
20.6 - 23.-
23.4 - 26.3

H1039
H1040
H1041
H1042
H1043

26.4 - 30.8
30.9 - 34.0
34.1 - 38.3
38.4 - 43.4
43.5 - 49.3

H1044
H1045
H1046
H1047
H1048

49.4 - 55.8
55.9 - 63.1
63.2 - 70.4
70.5 - 79.9
80.0 - 92.7

H1049
H1050
H1051
H1052
H1054

92.8 - 105
106 - 121
122 - 135

H1055
H1056
H1057

1Select heater coils for 50% of rated full load current 
2Select heater coils for 58% of rated full load current              [Back To Top]

 

Table ST-9

Heater Coil Catalog Number

NEMA Size 0 & 1

For Enclosed Type Cat. No. A30, A40, A70, A80, A800-A803

Heater Coil Ampere Range

.164 - .183
.184 - .205
.206 - .232
.233 - .260
.261 - .293

H1101
H1102
H1103
H1104
H1105

.294 - .328
.329 - .369
.370 - .414
.415 - .465
.466 - .522

H1106
H1107
H1108
H1109
H1110

.523 - .586
.587 - .659
.660 - .743
.744 - .839
.840 - .943

H1111
H1112
H1113
H1114
H1115

.944 - 1.05
1.06 - 1.17

H1116
H1117

1.18 - 1.31
1.32 - 1.47
1.48 - 1.66

H1018
H1019
H1020

1.67 - 1.85
1.86 - 2.06
2.05 - 2.26
2.27 - 2.54
2.55 - 2.85

H1021
H1022
H1023
H1024
H1025

2.86 - 3.18
3.19 - 3.53
3.54 - 3.95
3.96 - 4.41
4.42 - 4.88

H1026
H1066
H1027
H1028
H1029

4.89 - 5.42
5.43 - 6.07
6.08 - 6.64
6.65 - 7.43
7.44 - 8.23

H1030
H1031
H1032
H1033
H1034

8.24 - 9.19
9.20 - 10.1
10.2 - 11.3
11.4 - 12.6
12.7 - 14.0

H1035
H1036
H1037
H1038
H1039

14.1 - 15.7
15.8 - 17.7
17.8 - 19.8
19.9 - 22.0
22.1 - 24.9
25.0 - 27.0

H1040
H1041
H1042
H1043
H1044
H1045

 

Table ST-10

Table ST-11

Table ST-12

Heater Coil Catalog Number

NEMA Size 6

NEMA Size 7

NEMA Size 8

For Open Type - Cat. No. A10, A50, A700
For Enclosed Type - Cat. No. A10, A30, A40, A50, A70, A80, A400, A4601, A4902, A700

Heater Coil Ampere Range

-
154-171
172-192
193-215

229 - 255
256 - 287
288 - 321
322 - 359

-
384 - 429
430 - 482
483 - 538

H1018
H1019
H1020
H1021

216 - 237
238 - 263
264 - 295
296 - 330
331 - 369

360 -397
398 - 439
440 - 492
493 - 551
552 - 615

539 - 595
596 - 657
658 - 741
742 - 827
828 - 924

H1022
H1023
H1024
H1025
H1026

370 - 410
411 - 458
459 - 512
513 - 574

616 - 685
686 - 763
764 -855
-

925 - 1027
1028 - 1147
1148 - 1285
-

H1066
H1027
H1028
H1029

1Select heater coils for 50% of rated full load current 
2Select heater coils for 58% of rated full load current              [Back To Top]

TABLE ST-13 TABLE ST-14 TABLE ST-15 Heater Coil

Catalog Number
NEMA Size 2 NEMA Size 3 HEMA Size 4
For Enclosed Type A808, A809 For Enclosed Type A400 For Enclosed Type A400
Heater Coil Ampere Range
3.89-4.35     H1028
4.36-4.81     H1029
4.82-5.35     H1030
5.36-5.96     H1031
5.97-6.63     H1032
6.64-7.41     H1033
7.42-8.23 7.84-8.71   H1034
8.24-9.19 8.72-9.67   H1035
9.20-10.2 9.68-10.8   H1036
10.3-11.4 10.9-12.0   H1037
11.5-12.8 12.1-13.5   H1038
12.9-14.1 13.6-15.0   H1039
14.2-15.9 15.1-16.8   H1040
16.0-18.1 16.9-19.1   H1041
18.2-20.4 19.2-21.6 19.5-21.9 H1042
20.5-23.3 21.7-24.5 22.0-24.7 H1043
23.4-26.5 24.6-27.8 24.8-29.0 H1044
26.6-30.3 27.9-31.5 29.1-31.9 H1045
30.4-34.7 31.6-35.5 32.0-36.1 H1046
34.8-39.6 35.6-40.3 36.2-40.7 H1047
39.7-45.0 40.4-45.6 40.8-46.2 H1048
  45.7-51.8 46.3-52.4 H1049
  51.9-58.6 52.5-59.2 H1050
  58.7-65.2 59.3-66.3 H1051
  65.3-74.3 66.4-75.1 H1052
  74.4-86.3 75.2-87.1 H1054
  86.4-90.0 87.2-99.9 H1055
    100.-113. H1056
    114.-129. H1057
    130.-135. H1058

  [Back To Top]

TABLE ST-16 Heater Coil

Catalog Number
NEMA Size 5

For Open and Enclosed

Type A10, A50,A30-40,

A70,A80,A400,A410,

A420,A460,A490,A800-801
Heater Coil Ampere Range
92-101 H1020
102-113 H1021
114-125 H1022
126-139 H1023
140-157 H1024
158-175 H1025
176-196 H1026
197-218 H1066
219-243 H1027
244-270 H1028

  [Back To Top]

Selection Table for Type BNC Bimetal Overload Relay

For Motors With 1.15 Service Factor

TABLE BNC-1 TABLE BNC-2 TABLE BNC-3 TABLE BNC-4 Heater Coil

Catalog Number
NEMA Size 00-0-1-1 1/2 NEMA Size 2

For Open Type

Cat.No. A11,A51,B11

B51,C301

For Enclosed Type

Cat.No.C301

For Enclosed Type

Cat.No.

A11,A51,B11,B51

For Open Type

Cat.No.A11,A51,B11,C301

For Enclosed Type

Cat.No.A31,A41,A71,

A81,B11

For Enclosed Type

Cat.No.

A11,A51,

C301
Heater Coil Ampere Range
.180-.201 .167-.187     H1101
.202-.226 .188-.210     H1102
.227-.254 .211-.236     H1103
.255-.285 .237-.266     H1104
.286-.320 .267-.297     H1105
.321-.357 .298-.332     H1106
.358-.402 .333-.373     H1107
.403-.451 .374-.419     H1108
.452-.506 .420-.470     H1109
.507-.568 .471-.528     H1110
.569-.638 .529-.592     H1111
.639-.716 .593-.663     H1112
.717-.799 .664-.743     H1113
.800-.911 .744-.847     H1114
.912-1.01 .848-.951     H1115
1.02-1.14 .952-1.06     H1116
1.15-1.29 1.07-1.20     H1117
1.30-1.44 1.21-1.33     H1018
1.45-1.61 1.34-1.49     H1019
1.62-1.80 1.50-1.67     H1020
1.81-2.03 1.68-1.89     H1021
2.04-2.25 1.90-2.09     H1022
2.26-2.49 2.10-2.32     H1023
2.50-2.76 2.33-2.57     H1024
2.77-3.05 2.58-2.83     H1025
3.06-3.39 2.84-3.15     H1026
3.40-3.83 3.16-3.51 3.87-4.18   H1066
3.84-4.22 3.52-3.87 4.19-4.60 3.94-4.33 H1027
4.23-4.63 3.88-4.25 4.61-5.10 4.34-4.78 H1028
4.64-5.19 4.26-4.76 5.11-5.60 4.79-5.27 H1029
5.20-5.73 4.77-5.27 5.61-6.20 5.28-5.83 H1030
5.74-6.49 5.28-5.90 6.21-6.92 5.84-6.51 H1031
6.50-7.32 5.91-6.63 6.93-7.76 6.52-7.29 H1032
7.33-8.07 6.64-7.35 7.77-8.63 7.30-8.07 H1033
8.08-9.03 7.36-8.15 8.64-9.67 8.08-9.03 H1034
9.04-9.99 8.16-8.87 9.68-10.5 9.04-9.99 H1035
10.0-11.1 8.88-9.99 10.6-11.8 10.0-11.1 H1036
11.2-12.5 10.0-11.1 11.9-13.2 11.2-12.3 H1037
12.6-14.1 11.2-12.5 13.3-15.0 12.4-14.1 H1038
14.2-15.9 12.6-14.1 15.1-17.2 14.2-16.1 H1039
16.0-18.0 14.2-16.1 17.3-19.1 16.2-17.8 H1040
18.1-19.8 16.2-17.7 19.2-21.5 17.9-19.9 H1041
19.9-22.2 17.8-19.8 21.6-23.6 20.0-21.9 H1042
22.3-25.0 19.9-22.2 23.7-27.0 22.0-24.7 H1043
25.1-27.0 22.3-25.0 27.1-30.6 24.8-27.9 H1044
  25.1-27.0 30.7-35.1 28.0-31.6 H1045
    35.2-39.8 31.7-35.3 H1046
    39.9-45.0 35.4-39.4 H1047
      39.5-44.4 H1048
      44.5-45.0 H1049

  [Back To Top]

TABLE BNC-5 TABLE BNC-6 TABLE BNC-7 Heater Coil

Catalog Number
NEMA Size 3 NEMA Size 4

For Open Type

Cat.No. A11,B11

A51,C301

For Enclosed Type

Cat.No. B11,A71,A81

For Enclosed Type

Cat.No.

A11,A31,A41.A51

For Open Type

Cat.No.A11,A51,C301

For Enclosed Type

Cat.No.A11,A31,

A41,A51,A71,A81
Heater Coil Ampere Range
7.57-8.47 7.57-8.39 ----- H1033
8.48-9.35 8.40-9.27 ----- H1034
9.36-10.1 9.28-10.1 ----- H1035
10.2-11.2 10.2-11.1 ----- H1036
11.3-12.2 11.2-12.1 ----- H1037
12.3-13.7 12.2-136 ----- H1038
13.8-15.7 13.7-15.5 ----- H1039
15.8-17.3 15.6-17.2 ----- H1040
17.4-19.9 17.3-19.8 ----- H1041
20.0-22.9 19.9-22.7 20.0-22.9 H1042
23.0-26.4 22.8-26.0 23.0-26.4 H1043
26.5-30.6 26.1-30.0 26.5-30.6 H1044
30.7-35.5 30.1-34.4 30.7-35.5 H1045
35.6-41.2 34.5-39.5 35.6-41.2 H1046
41.3-46.5 39.6-44.3 41.3-46.5 H1047
46.6-52.4 44.4-49.9 46.6-52.4 H1048
52.5-57.8 50.0-54.3 52.5-57.8 H1049
57.9-63.6 54.4-59.8 57.9-63.6 H1050
63.7-69.9 59.9-65.1 63.7-69.9 H1051
70.0-79.5 65.2-73.1 70.0-79.5 H1052
79.6-90.0 73.2-83.9 79.6-92.0 H1054
----- 84.0-90.0 92.1-104 H1055
----- ----- 105-119 H1056
----- ----- 120-135 H1057
----- ----- ----- H1058

TABLE BNC-8

 Heater Coil

Catalog Number
NEMA Size 0 & 1

For Enclosed Type

Catalog Number

A31, A41,A71, A81
Heater Coil Ampere Range
.176-.198 H1101
.199-.221 H1102
.222-.249 H1103
.250-.279 H1104
.280-.313 H1105
.314-.350 H1106
.351-.395 H1107
.396-.442 H1108
.443-.497 H1109
.498-.556 H1110
.557-.626 H1111
.627-.703 H1112
.704-.783 H1113
.784-.895 H1114
.896-.999 H1115
1.00-1.12 H1116
1.13-1.25 H1117
1.26-1.40 H1018
1.41-1.56 H1019
1.57-1.74 H1020
1.75-1.97 H1021
1.98-2.19 H1022
2.20-2.42 H1023
2.43-2.68 H1024
2.69-2.95 H1025
2.96-3.29 H1026
3.30-3.72 H1066
3.73-4.10 H1027
4.11-4.49 H1028
4.50-5.04 H1029
5.05-5.56 H1030
5.57-6.23 H1031
6.24-7.03 H1032
7.04-7.75 H1033
7.76-8.71 H1034
8.72-9.59 H1035
9.60-10.5 H1036
10.6-11.8 H1037
11.9-13.3 H1038
13.4-14.9 H1039
15.0-16.9 H1040
17.0-18.5 H1041
18.6-20.7 H1042
20.8-23.0 H2043
23.1-25.7 H1044
25.8-27.0 H1045

TABLE BNC-9 Heater Coil

Catalog Number
NEMA Size 5

For Open and Enclosed

Type A11,A31-41, A51, 

A71,A81
Heater Coil Ampere Range
96.8-108 H1020
1.9-121 H1021
122-135 H1022
136-149 H1023
150-166 H1024
167-182 H1025
183-203 H1026
204-229 H1066
230-253 H1027
254-283 H1028

 

Selection Table for Type LT Slow Trip Eutectic Alloy Overload Relay

For Motors With 1.15 Service Factor

TABLE  LT-1 TABLE  LT-2 TABLE  LT-3 TABLE  LT-4 Heater Coil

Catalog Number
NEMA Size 00-0-1-1 1/2 NEMA Size 2

For Enclosed Type

Cat.No. A13

For Open Type

Cat.No. A13, C303

For Enclosed Type

Cat.No. C303

For Enclosed Type

Cat.No.A13

For Open Type

Cat.No. A13, C303

For Enclosed Type

Cat. No. C303
Heater Coil Ampere Range
.167-.186 .167-.186     H1001
.187-.209 .187-.209     H1002
.210-.233 .210-.233     H1003
.234-.260 .234-.260     H1004
.261-.293 .261-.293     H1005
.294-.329 .294-.329     H1006
.330-.373 .330-.373     H1007
.374-.417 .374-.417     H1008
.418-.471 .418-.471     H1009
.472-.531 .472-.531     H1010
.532-.591 .532-.591     H1011
.592-.660 .592-.660     H1012
.661-.739 .661-.739     H1013
.740-.823 .740-.823     H1014
.824-.919 .824-.919     H1015
.920-1.01 .920-1.01     H1016
1.02-1.14 1.02-1.14     H1017
1.15-1.27 1.15-1.27     H1018
1.28-1.41 1.28-1.41     H1019
1.42-1.61 1.42-1.61     H1020
1.62-1.86 1.62-1.86     H1021
1.87-2.01 1.87-2.01     H1022
2.02-2.27 2.02-2.27     H1023
2.28-2.51 2.28-2.51     H1024
2.52-2.80 2.52-2.80     H1025
2.81-3.21 2.81-3.21     H1026
3.22-3.51 3.22-3.51     H1066
3.52-3.86 3.52-3.86 3.67-3.99 3.67-3.99 H1027
3.87-4.36 3.87-4.36 4.00-4.51 3.40-4.51 H1028
4.37-4.78 4.37-4.83 4.52-5.03 4.52-5.03 H1029
4.79-5.35 4.84-5.41 5.04-5.59 5.04-5.59 H1030
5.36-6.00 5.52-6.07 5.60-6.20 5.60-6.20 H1031
6.01-6.59 6.08-6.66 6.21-6.88 6.21-6.88 H1032
6.60-7.35 6.67-7.51 6.89-7.80 6.89-7.80 H1033
7.36-8.14 7.52-8.31 7.81-8.71 7.81-8.71 H1034
8.15-9.11 8.32-9.27 8.72-9.59 8.72-9.59 H1035
9.12-10.0 9.28-10.3 9.60-10.5 9.60-10.7 H1036
10.1-11.3 10.4-11.7 10.6-11.8 10.8-12.0 H1037
11.4-12.5 11.8-13.0 11.9-13.3 12.1-13.4 H1038
12.6-13.9 13.1-14.5 13.4-14.8 13.5-14.9 H1039
14.0-15.5 14.6-16.3 14.9-16.6 15.0-16.8 H1040
15.6-17.0 16.4-18.1 16.7-18.5 16.9-18.8 H1041
17.1-18.9 18.2-20.3 18.6-20.7 18.9-21.1 H1042
19.0-21.2 20.4-23. 20.8-23.3 21.2-24.1 H1043
21.3-23.3 23.1-25.9 23.4-26.5 24.2-27.3 H1044
23.4-26.1 26.0-27.0 26.6-30.0 27.4-31.3 H1045
26.2-27.0 ----- 30.1-33.7 31.4-35.5 H1046
----- ----- 33.8-37.5 35.6-40.3 H1047
----- ----- 37.6-41.9 40.4-45. H1048
----- ----- 42.0-445.0 ----- H1049

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TABLE  LT-5 TABLE  LT-6 TABLE  LT-7 Heater Coil

Catalog Number
NEMA Size  3 NEMA Size 4

For Enclosed Type

Cat.No. A13

For Open Type

Cat.No. A13, C303

For Open Type

Cat No. A13, C303

For Enclosed Type

Cat.No.A13
Heater Coil Ampere Range
8.16-9.11 8.24-9.19 ----- H1034
9.12-9.99 9.20-10.0 ----- H1035
10.0-11.2 10.1-11.3 ----- H1036
11.3-12.3 11.4-12.5 ----- H1037
12.4-13.9 12.6-14.1 ----- H1038
14.0-15.5 14.2-15.7 ----- H1039
15.6-17.4 15.8-17.6 ----- H1040
17.5-19.6 17.7-19.8 ----- H1041
19.7-21.9 19.9-22.1 20.0-22.3 H1042
22.0-24.7 22.2-25.2 22.4-25.5 H1043
24.8-28.1 25.3-28.7 25.6-28.9 H1044
28.2-31.8 28.8-32.7 29.0-33.7 H1045
31.9-36.1 32.8-37.3 33.8-37.5 H1046
36.2-40.7 37.4-42.3 37.6-42.6 H1047
40.8-45.5 42.4-47.9 42.7-48.2 H1048
45.6-52.0 48.0-55.4 48.3-55.9 H1049
52.1-58.2 55.5-61.9 56.0-62.3 H1050
58.3-63.2 62.0-67.9 62.4-68.4 H1051
63.3-68.3 68.0-73.3 68.5-73.7 H1052
36.4-79.9 73.4-87.9 73.8-88.7 H1054
80.0-89.5 88.0-90.0 88.8-99.9 H1055
89.6-90.0 ----- 100.0-113 H1056
----- ----- 114-128 H1057
----- ----- 129-135 H1058
H1048
H1049

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TABLE  LT-8 Heater Coil

Catalog Number
NEMA Size 5

For Open and Enclosed

Type  A13
Heater Coil Ampere Range
96.8-111 H1021
112-120 H1022
121-136 H1023
137-150 H1024
151-168 H1025
169-192 H1026
193-210 H1066
211-231 H1027
232-261 H1028
262-293 H1029

 

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Manual and Special A-C Heater Coil Selection

INDEX OF TERMAL OVERLOAD RELAY HEATER COIL SELECTION TABLES

Catalog Number

NEMA

Size of 

Starter

Heater Coil Selection Table Numbers

Encloseure - NEMA Type

Open

1

3

4

7-D

9-

EFG

12

3 PHASE FULL VOLTAGE MOTOR CONTROL

9115

0

1

32A

92A

30A

31B

--

--

30A 2
31B2

91A
91A

91A
91A

30A

31B
SINGLE PHASE MOTOR CONTROL

9101

All

53A 

53A 3

--

53A 

53A 

53A 

--

9115

All

60B

33B

33B

33B

33B

33B

33B

THERMAL OVERLOAD RELAYS AND SWITCHES

10176

1

2

49A

51A

--

--

--

--

--

--

--

--

--

--

--

--

2 For starters in cast aluminum enclosures select from table 91A

3 With incandescent pilot light, use table 55A 

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Tables 30A to 33B

30A 31B 32A 33B Heater Coil

Catalog Number
Heater Coil Ampere Range
.160-.178 .162-.178 .167-.184 .170-.188 H1001
.179-.201 .179-.201 .185-.207 .189-.212 H1002
.202-.222 .202-.223 .208-.229 .213-.234 H1003
.223-.246 .224-.247 .230-.254 .235-.259 H1004
.247-.278 .248-..279 .255-.287 .260-.294 H1005
.279-.316 .280-.316 .288-.325 .295-.332 H1006
.317-.352 .317-.353 .326-.363 .333-.370 H1007
.353-.401 .354-.401 .364-.413 .371-.421 H1008
.402-.453 .402-.453 .414-.467 .422-.476 H1009
.454-.511 .454-.511 .468-.527 .477-.538 H1010
.512-.564 .512-.564 .528-.581 .539-.592 H1011
.565-.629 .565-.629 .582-.649 .593-.662 H1012
.630-.697 .630-.697 .650-.719 .663-.732 H1013
.698-.775 .698-.775 .720-.799 .733-.815 H1014
.776-.855 .776-.855 .800-.879 .816-.895 H1015
.856-.943 .856-.951 .880-.975 .896-.999 H1016
.944-1.04 .952-1.04 .976-1.07 1.00-1.09 H1017
1.05-1.15 1.05-1.16 1.08-1.19 1.10-1.21 H1018
1.16-1.29 1.17-1.29 1.20-1.33 1.22-1.36 H1019
1.30-1.45 1.30-1.46 1.34-1.50 1.37-1.53 H1020
1.46-1.66 1.47-1.66 1.51-1.70 1.54-1.73 H1021
1.67-1.86 1.67-1.86 1.71-1.91 1.74-1.95 H1022
1.87-2.06 1.87-2.09 1.92-2.15 1.96-2.20 H1023
2.07-2.29 2.10-2.32 2.16-2.39 2.21-2.44 H1024
2.30-2.57 2.33-2.60 2.40-2.68 2.45-2.73 H1025
2.58-2.89 2.61-2.89 2.69-3.02 2.74-3.08 H1026
2.90-3.23 2.90-3.23 3.03-3.37 3.09-3.43 H1066
3.24-3.54 3.24-3.54 3.38-3.69 3.44-3.76 H1027
3.55-4.02 3.55-4.02 3.70-4.19 3.77-4.28 H1028
4.03-4.40 4.03-4.44 4.20-4.63 4.29-4.73 H1029
4.41-4.97 4.45-5.02 4.64-5.23 4.74-5.34 H1030
4.98-5.60 5.03-5.65 5.24-5.89 5.35-6.00 H1031
5.61-6.16 5.66-6.23 5.90-6.49 6.01-6.62 H1032
6.17-6.83 6.24-6.98 6.50-7.27 6.63-7.42 H1033
6.84-7.59 6.99-7.75 7.28-8.07 7.43-8.23 H1034
7.60-8.47 7.56-8.55 8.08-9.03 8.24-9.19 H1035
8.48-9.43 8.56-9.67 9.04-10.1 9.20-10.3 H1036
9.44-10.5 9.68-10.8 10.2-11.3 10.4-11.6 H1037
10.6-11.7 10.9-12.1 11.4-12.7 11.7-12.9 H1038
11.8-13.2 12.2-13.4 12.8-14.3 13.0-14.6 H1039
13.3-14.5 13.5-14.9 14.4-15.9 14.7-16.2 H1040
14.6-15.7 15.0-16.5 16.0-17.5 16.3-17.8 H1041
15.8-17.3 16.6-18.1 17.6-18.0 17.9-19.8 H1042
17.4-18.0 18.2-20.6 -- 19.9-22.6 H1043
-- 20.7-23.1 -- 22.7-25.3 H1044
-- 23.2-25.8 -- 25.4-28.6 H1045
-- 25.9-27.0 -- 28.7-32.0 H1046
-- -- -- 32.1-36.2 H1047
-- -- -- 36.3-37.4 H1048

Note: Individually boxed heater coils master packed per carton

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TABLES 49A AND 51A

30A 31B Heater Coil

Catalog Number
Heater Coil Ampere Range
2.09-2.31 -- H10
2.32-2.51 -- H11
2.52-2.71 -- H12
2.72-2.94 -- H13
2.95-3.24 -- H14
3.25-3.51 -- H15
3.52-3.81 -- H16
3.82-4.11 -- H17
4.12-4.45 4.22-4.52 H18
4.46-4.83 4.53-4.89 H19
4.84-5.41 4.90-5.44 H20
5.42-5.74 5.45-5.84 H21
5.75-6.23 5.85-6.29 H22
6.24-6.63 6.30-6.75 H23
6.64-7.03 6.76-7.29 H24
7.04-7.91 7.30-8.16 H25
7.92-8.63 8.17-8.96 H26
8.64-9.44 8.97-9.67 H27
9.45-10.0 9.68-10.4 H28
10.1-10.9 10.5-11.3 H29
11.0-12.1 11.4-12.6 H30
12.2-13.2 12.7-13.8 H31
13.3-13.9 13.9-14.9 H32
14.0-15.1 15.0-15.7 H33
15.2-16.4 15.8-17.3 H34
16.5-17.9 17.4-19.0 H35
18.0-20.1 19.1-21.1 H36
20.2-22.3 21.2-23.6 H37
22.4-25.1 23.7-26.3 H38
25.2-27.8 26.4-29.1 H39
-- 29.2-32.7 H40
-- 32.8-36.7 H41
-- 36.8-40.5 H42
-- 40.6-43.7 H43
-- 43.8-48.6 H44
-- 48.7-53.2 H45
-- -- H46

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TABLES 53A to 55A

53A 54A 55A Heater Coil

Catalog Number
Heater Coil Ampere Range
.229-.251 .220-.242 .206-.226 H1201
.252-.276 .243-.265 .227-.248 H1202
.277-.304 .266-.292 .249-.273 H1203
.305-.337 .293-.325 .274-.303 H1204
.338-.371 .326-.356 .304-.334 H1205
.372-.414 .357-.397 .335-.372 H1206
.415-.449 .398-.433 .373-.405 H1207
.450-.499 .434-.478 .406-.449 H1208
.500-.543 .479-.521 .450-.489 H1209
.554-.587 .522-.563 .490-.527 H1210
.588-.646 .564-.620 .528-.581 H1211
.647-.706 .621-.677 .582-.635 H1212
.707-.769 .678-.738 .636-.692 H1213
.770-.831 .739-.800 .693-.748 H1214
.832-.911 .801-.876 .749-.820 H1215
.912-.991 .877-.953 .821-.892 H1216
.992-1.10 .954-1.06 .893-.999 H1217
1.11-1.22 1.07-1.17 1.00-1.09 H1218
1.23-1.33 1.18-1.28 1.10-1.20 H1219
1.34-1.50 1.29-1.44 1.21-1.35 H1220
1.51-1.66 1.45-1.60 1.36-1.49 H1221
1.67-1.87 1.61-1.80 1.50-1.68 H1222
1.88-2.09 1.81-2.01 1.69-1.88 H1223
2.10-2.28 2.02-2.19 1.89-2.05 H1224
2.29-2.55 2.20-2.45 2.06-2.30 H1225
2.56-2.84 2.46-2.73 2.31-2.56 H1226
2.85-3.11 2.74-2.98 2.57-2.80 H1227
3.12-3.40 2.99-3.26 2.81-3.06 H1228
3.41-3.74 3.27-3.59 3.07-3.37 H1229
3.75-4.11 3.60-3.94 3.38-3.70 H1230
4.12-4.55 3.95-4.36 3.71-4.10 H1231
4.56-5.01 4.37-4.81 4.11-4.51 H1232
5.02-5.54 4.82-5.31 4.52-4.98 H1233
5.55-6.02 5.32-5.79 4.99-5.43 H1234
6.03-6.79 5.80-6.45 5.44-6.11 H1235
6.80-7.56 6.46-7.17 6.12-6.72 H1236
7.57-8.47 7.18-8.03 6.73-7.55 H1237
8.48-9.44 8.04-8.91 7.56-8.40 H1238
9.45-10.4 8.92-9.87 8.41-9.38 H1239
10.5-11.8 9.88-10.9 9.39-10.4 H1240
11.9-12.7 11.0-11.8 10.5-11.3 H1241
12.8-13.9 11.9-12.8 11.4-12.2 H1242
14.0-15.1 12.9-13.7 12.3-13.3 H1243
15.2-16.0 13.8-14.7 13.4-13.8 H1244
-- 14.8-15.7 13.9-15.5 H1245
-- 15.8-16.0 15.6-16.0 H1246

  [Back To Top]

TABLES 60B, 91A and 92A

60B 91S 92S Heater Coil

Catalog Number
Heater Coil Ampere Range
.185-.204 .162-.178 .178-.198 H1001
.205-.230 .179-.201 .199-.221 H1002
.231-.255 .202-.223 .222-.245 H1003
.256-.282 .224-.247 .246-.273 H1004
.283-.319 .248-.279 .274-.307 H1005
.320-.362 .280-.316 .308-.348 H1006
.363-.403 .317-.353 .349-.388 H1007
.404+.459 .354-.401 .389-.443 H1008
.460-.519 .402-.453 .444-.500 H1009
.520-.586 .454-.511 .501-.564 H1010
.587-.646 .512-.564 .565-.623 H1011
.647-.720 .565-.629 .624-.695 H1012
.721-.799 .630-.697 .696-.770 H1013
.800-.887 .698-.775 .771-.855 H1014
.888-.975 .776-.855 .856-.943 H1015
.976-1.08 .856-.951 .944-1.03 H1016
1.09-1.19 .952-1.04 1.04-1.14 H1017
1.20-1.33 1.05-1.16 1.15-1.27 H1018
1.34-1.49 1.17-1.29 1.28-1.43 H1019
1.50-1.67 1.30-1.46 1.44-1.61 H1020
1.68-1.89 1.47-1.66 1.62-1.82 H1021
1.90-2.12 1.67-1.86 1.83-2.05 H1022
2.13-2.39 1.87-2.09 2.06-2.30 H1023
2.40-2.66 2.10-2.32 2.31-2.56 H1024
2.67-2.97 2.33-2.60 2.57-2.86 H1025
2.98-3.35 2.61-2.93 2.87-3.23 H1026
3.36-3.73 2.94-3.27 3.24-3.60 H1066
3.74-4.09 3.28-3.57 3.61-3.95 H1027
4.10-4.65 3.58-4.07 3.96-4.49 H1028
4.66-5.15 4.08-4.49 4.50-4.95 H1029
5.16-5.80 4.50-5.07 4.96-5.59 H1030
5.81-6.55 5.08-5.72 5.60-6.31 H1031
6.56-7.19 5.73-6.29 6.32-6.95 H1032
7.20-8.07 6.30-7.06 6.96-7.78 H1033
8.08-8.95 7.07-7.83 7.79-8.63 H1034
8.96-10.0 7.84-8.79 8.64-9.67 H1035
10.1-11.2 8.80-9.83 9.68-10.8 H1036
11.3-12.6 9.84-11.0 10.9-12.1 H1037
12.7-14.1 11.1-12.3 12.2-13.6 H1038
14.2-16.1 12.4-13.9 13.7-15.3 H1039
16.2-17.8 14.0-15.7 15.4-17.0 H1040
17.9-19.6 15.8-17.0 17.1-18.8 H1041
19.7-21.8 17.1-18.9 18.9-20.8 H1042
21.9-24.9 19.0-21.3 20.9-23.7 H1043
25.0-27.8 21.4-24.1 23.8-26.5 H1044
27.9-31.8 -- 26.6-27.0 H1045
31.9-35.5 -- -- H1046
35.6-37.4 -- -- H1047

Note: Individually boxed heater coils master packed 10 per carton.

 

Pioneer Breaker & Control Supply is not an authorized distributor of Cutler Hammer products and Cutler Hammer trademarks are owned by Cutler Hammer Inc.

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