Section 16: NEMA and Definite Purpose Contactors and Starters PDF

Section 16: NEMA and Definite Purpose Contactors and Starters PDF

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Thermal Unit Selection

Thermal Unit Selection Tables

General

All tables are based on the operation of the motor and controller in the same ambient temperature, 40 °C (104 °F) or less. Always be certain the correct thermal units are installed in the starter before operating the motor. Each thermal unit shall be installed such that its catalog number is visible. See Approximate Thermal Unit Selection Based On Horsepower and Voltage for information on installing thermal units. On melting alloy thermal units the ratchet wheel must engage the pawl assembly.

Selection Procedure

1.

Determine motor data:
 

a.

Full load current rating
 

b.

Service factor
   

note

If motor full load current (FLC) is not known, a tentative thermal unit selection could be made, based on horsepower and voltage. Refer to Approximate Thermal Unit Selection Based On Horsepower and Voltage.

2.

Motor and controller in same ambient temperature:
 

a.

All starter classes, except Class 8198:
   

1.

For 1.15 to 1.25 service factor motors use 100% of motor FLC for thermal unit selection.
   

2.

For 1.0 service factor motors use 90% of motor FLC for thermal unit selection.
 

b.

Class 8198 only:
   

1.

For 1.0 service factor motors use 100% of motor FLC for thermal unit selection.
   

2.

For 1.15 to 1.25 service factor motors use 110% of motor FLC for thermal unit selection.

3.

Motor and controller in different ambient temperatures:
 

a.

Multiply motor FLC by the multiplier in Selection of Thermal Units for Special Applications. Use the resultant full load current for thermal unit selection.

4.

Locate the proper selection table from the index, pages Thermal Unit Selection and Thermal Unit Selection.
 

a.

The proper thermal unit number will be found adjacent, to the right of the range of full load currents in which the motor FLC or resultant full load current falls.

5.

See Calculation of  the Trip Current Rating for calculation of trip current rating.

Slow Trip Thermal Unit Selection

Thermal Unit Trip Types

Melting Alloy

Type of
Trip

Thermal
Unit Type


Standard

A

B

C

CC

DD

Quick

FB

Slow

SB

To select Type SB slow trip thermal units, the selection table for a standard Type B thermal unit may be used with the following modifications: For continuous rated motors having service factors of 1.15 to 1.25, select thermal units from the standard Type B table using 93% (102% for Class 8198) of the full load current shown on the motor nameplate and then substitute an SB for the B in the thermal unit type number.

Example: A motor with a full load current of 12 A controlled by an 8536SCG3 would require B22 thermal units for standard trip applications and SB19.5 thermal units for slow trip applications. The SB is selected by multiplying 12 A times 93% for 11.16 A and using this value to select B19.5. Then add the S prefix to arrive at SB19.5.

For continuous rated motors having a service factor of 1.0, select thermal units in the same manner using 84% (93% for Class 8198) of full load current shown on the motor nameplate.

note

SB thermal units are used on Size 0, 1, 2, and only some Size 3 applications. Check thermal unit tables for current ranges.

Selection of Thermal Units for Special Applications

Class of Controller

Continuous Duty Motor Service Factor

Melting Alloy

Ambient Temperature of Motor

Same as Controller Ambient

Constant 10 °C (18 °F)
Higher Than Controller Ambient

Constant 10 °C (18 °F)
Lower Than Controller Ambient

Full Load Current Multiplier

All Classes, Except 8198

1.15 to 1.25

1.0

0.9

1.05

1.0

0.9

0.8

0.95

Class 8198

1.15 to 1.25

1.1

1.0

1.15

1.0

1.0

0.9

1.05

Thermal Unit Selection

note

For thermal unit selection tables for other devices including obsolete devices, consult the Customer Care Center at 1-888-778-2733.

Thermal Unit Selection

Controller

Thermal Unit Selection Table Number

Hand Reset Melting Alloy

Starter Type

Class

Type

Series[1]

Size

Standard Trip
(20)

Quick Trip
(10)

Slow Trip
(30)

Manual
Starters
FHP

2510
2512
8908

F

A

FHP

43 [2]

—

—

Manual Starters
(Small
Enclosure)

2510

M, T

A

M–0
M–1
M–1P

  1 
  1 
  1 

72
72
72

[3]
[3]
[3]

Manual
Starters
(Large
Enclosure)

2510
2511
2512
8925

M, T

A

M–0
M–1
M–1P

  2 
  2 
  2 

73
73
73

[3]
[3]
[3]

DC
Magnetic
Starters

EC & M Crane Control Product

7135
7136
7735
7736

C, D

—

1, 2

 65

—

[3]

E

—

3

  9

—

—

F

—

4

 10

—

—

G

—

5

 12

—

—

AC
Magnetic
Starters
(Small
Enclosure)

 

8536
8904 [4]
(Starter
In Own
Enclosure)

8933

8998
8999
(Model 3
Control Center)

I-LINE®

and QMB
Motor
Starter
Centers

A
(8536
only)

B, C

00

 17 [2]

—

—

SA

A, B

00

 13

—

[3]

SB

A

0

 13

74

[3]

SC

A

1

 13

74

[3]

A

1P

 41

—

[3]

SD

A

2

 56

75

[3]

SE

A

3

 18

76 [5]

134 [3][5]

SF

A

4

 54

—

—

SG

A

5

 49

—

—

B [6]

5

 59

83

—

SH

A, B

6

 21

—

—

8998
8999
(Model 4
Control Center)

SC

A

1 Fusible

 66

74

—

1 Circuit Breaker

 15

74

—

SD

A

2 Fusible

 67

75

—

2 Circuit Breaker

 58 [7]

75

—

SE

A

3 Small Enclosure

 16

76 [5]

134 [3][5]

3 Large Enclosure

 68 [7]

76 [5]

133 [3][5]

SF

A

4

 61

—

—

SG

A

5

 24

—

—

SH

A

6

 20

—

—

8998
(Model 5 and
Model 6 MCCs)

SC [8]

A

1

109

—

—

1 COMPAC 6

104

—

—

SD [8]

A

2

110

—

—

SE [8]

A

3

111

—

—

SF [8]

A

4

112

—

—

SG [8]

A

5

113

—

—

B

5 CT

103

—

—

SH [8]

A

6

114

—

—

8911

DPSG

C

20–30 A

135

—

—

40 A

145

—

—

A

50 A

146

—

—

(table continued on the next page)

note

For thermal unit selection tables for other devices, including obsolete devices, consult the Customer Care Center at 1-888-778-2733.

Thermal Unit Selection

Thermal Unit Selection

Controller

Thermal Unit Selection Table Number

Hand Reset Melting Alloy

Starter Type

Class

Type

Series[1]

Size

Standard Trip
(20)

Quick Trip
(10)

Slow Trip
(30)

AC
Magnetic
Starters
(Large
Enclosure)

8198

G, S

—

—

5

—

[3]

8536

(Starter Used in
Multi-Motor Panel)

A (8536 only)

B, C

00

14 [2]

—

—

8538

8904[9]

SA

A, B

00

53

—

[3]

8539

8906

SB, NB

A

0

15

78

[3]

8606

8907

SC, NC

A

1

15

78

[3]

8630 [10]

8920

SD, ND

A

2

58

79

[3]

8640 [11]

8922

SE, NE

A

3

16

80 [5]

133 [5][3]

9089

8924

SF, NF

A

4

61

—

—

8647

8925

SG

A

5

24

—

—

8650

8930

B [6]

5

59

83

—

8736

8738 

8739 

8941

SH

A, B

6

20

—

[3]

8810
8811
8812

CB, DB, SB, UB

A

0

15

78

[3]

CC, DC, SC, UC

A

1

15

78

[3]

CD, DD, SD, UD

A

2

58

79

[3]

CE, DE, SE, UE

A

3

16

80 [5]

133 [5][3]

CF, DF, SF, UF

A

4

61

—

—

CG, DG, SG, UG

A

5

24

—

—

B [6]

5

59

83

—

CH, DH, SH, UH

A

6

20

—

[3]

8940

WELL-GUARD™
Control

WC, XC

A

1

13

78

—

WD, XD, MD, RD, VD

A

2

56

79

—

WE, XE, ME, RE, VE

A

3

18

80 [5]

—

PF, WF, XF, MF, RF, VF, PE

A

4

54

—

—

8911

DPSO

C

20–30 A

136

—

—

40 A

147

—

—

A

50 A

148

—

—

AC
Magnetic
Part-
Winding

8998
(Model 5 and
Model 6 MCCs)

SC [8]

A

1

127

—

—

SD [8]

A

2

128

—

—

SE [8]

A

3

129

—

—

SF

A

4

105

—

—

SG

A

5

115

—

—

B [6]

5 CT

116

—

—

Separately Mounted Overload Relays

9065

C

A

1 (25 A)

 44

82

[3]

F

B

4 (133 A)

 19

—

—

G

A

5 (266 A)

 22

—

—

MEO

A

(32 A)

 86

—

—

S

A

1 (26 A)

 59

83

[3]

2 (45 A)

 69

84

[3]

3 (86 A)

 34

—

—

4 (133 A)

 28

—

—

T

A

2 (45 A)

 31

—

[3]

U

—

3 (86 A)

 40

—

—

note

For thermal unit selection tables for other devices including obsolete devices, consult the Customer Care Center at 1-888-778-2733.

Calculation of  the Trip Current Rating

Trip Current Rating—The trip current rating is a nominal value that approximates the minimum current to trip an overload relay in an ambient temperature, outside of the enclosure, of 40 °C (104 °F). In all selection tables except Class 8198, the trip current rating is 1.25 times the minimum full load current shown for the thermal unit selected. For Class 8198, the trip current rating is 1.15 times the minimum full load current. This applies to bimetallic overload relays with the trip adjustment set at 100 percent.

Calculation Procedure

  1. Use the selection table for the specific controller involved.

  2. Find the minimum motor full load current listed for the thermal unit in question.

  3. Multiply that current by 1.25 (1.15 for Class 8198). The result is the trip current rating.

Example 1: Determine the thermal unit selection and trip current rating for thermal units in a Class 8536 Type SCG3 Size 1 magnetic starter used to control a three-phase, 1.15 service factor motor with a full load current of 17.0 Amperes, where the motor and controller are both located in a 40oC (104oF) ambient temperature.

  1. From Table 13 the proper selection is B32.

  2. The minimum motor full load current is 16. 0 Amperes.

  3. Trip current rating is 16.0 x 1.25= 20.0 Amperes.

Protection Level is the relationship between trip current rating and full load current. Protection level, in percent, is the trip current rating divided by the motor full load current times 100. In Example 1 the protection level for the B32 thermal unit is: 20.0/17.0 x 100=118%.

National Electrical Code, Section 430-32, allows a maximum protection level of 125% for the motor in the above example.

Minimum Trip Current (also called ultimate current) may vary from the trip current rating value, since ratings are established under standardized test conditions. Factors which influence variations include: the number of thermal units installed, enclosure size, proximity to heat producing devices, size of conductors installed, ambient (room) temperature, and others.

Except for ambient temperature-compensated overload relays, an ambient temperature higher than 40oC would lower the trip current, and a lower temperature would increase it. This variation is not a factor in selecting thermal units for the average application, since most motor ratings are based on an ambient temperature of 40 °C, and motor capacity varies with temperature in about the same proportion as the change in trip current. Temperature-compensated relays maintain a nearly constant trip current over a wide range of ambient temperature, and are intended for use where the relay, because of its location, cannot sense changes in the motor ambient temperature.

Calculation of  the Trip Current for Ambient Temperatures Other Than 40 °C

For a controller ambient temperature other than 40 °C (104 °F) trip current can be calculated by applying a correction factor from the curve in
Figure 1. The approximate trip current for a particular ambient temperature is the product of (1) the multiplier M corresponding to the temperature and (2) the 40 °C trip current rating.

note

Ambient temperature is the temperature surrounding the starter enclosure. Normal temperature rise inside the enclosure has been taken into account in preparing the thermal unit selection tables.

Example 2: Determine the trip current for the motor and controller in Example 1, except the controller is in a 30 °C (86 °F) ambient temperature. From the curve in Figure 1 the multiplier M is 1.1 at 30 °C. The approximate trip current is 16.0 × 1.25 × 1.1 = 22 A.

Approximate Thermal Unit Selection Based On Horsepower and Voltage

General—Thermal units selected using approximate full-load currents from Use This Table Only When the Motor Full-Load Current Is Not Known will provide a trip current between 101% and 125% of full-load current for many 4-pole, single speed, normal torque, 60 Hz motors. Since full-load current rating of different makes and types of motors vary so widely, these selections may not be suitable.

Thermal units should be selected on the basis of motor nameplate full-load current and service factor. Thermal unit sizes originally selected on an approximate basis should always be rechecked and corrected at the time of installation if required.

How to use Use This Table Only When the Motor Full-Load Current Is Not Known:

Use This Table Only When the Motor Full-Load Current Is Not Known

Motor
Horsepower

Motor Full-Load Current

Three Ø

Single Ø

200 V

230 V

460 V

575 V

115 V

230 V

   1/6

—

—

—

—

4.4

2.2

   1/4

—

—

—

—

5.8

2.9

   1/3

—

—

—

—

7.2

3.6

   1/2

2.5

2.2

1.1

0.9

9.8

4.9

   3/4

3.7

3.2

1.6

1.3

13.8

6.9

  1

4.8

4.2

2.1

1.7

16

8

    1-1/2

6.9

6.0

3.0

2.4

20

10

  2

7.8

6.8

3.4

2.7

24

12

  3

11.0

9.6

4.8

3.9

34

17

  5

17.5

15.2

7.6

6.1

56

28

    7-1/2

25.3

22

11

9

80

40

 10

32.2

28

14

11

—

50

 15

48.3

42

21

17

—

—

 20

62.1

54

27

22

—

—

 25

78.2

68

34

27

—

—

 30

92

80

40

32

—

—

 40

120

104

52

41

—

—

 50

150

130

65

52

—

—

 60

177

154

77

62

—

—

 75

221

192

96

77

—

—

100

285

248

124

99

—

—

125

359

312

156

125

—

—

150

414

360

180

144

—

—

200

552

480

240

192

—

—

note

These currents should not be used for selection of fuses, circuit breakers or wire sizes. See NEC tables 430-248 through 430-250. For motors rated 208-220 volts, use 230 V column. For motors rated 440 to 550 volts, use 460 and 575 V columns, respectively.

Mounting of the Thermal Units

Figure 1

Always be certain the correct thermal units are installed in the starter before operating the motor. Thermal units should always be mounted so that their type designation can be read from the front of the starter (see Figure 1). Melting alloy thermal units should be mounted so that the tooth of the pawl assembly can engage the teeth of the ratchet wheel when the reset button is pushed.

Mounting surfaces of starter and thermal units should be clean and care should be taken to insure that thermal unit mounting screws are fastened securely.

Thermal Unit Selection Tables

Thermal Unit Selection Tables

Thermal Unit Table 1
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

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
2.11–2.30
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
—
—

B 14.0
B 15.5
B 17.5
B 19.5
B 22.0
B 25.0

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
B 22.0
B 25.0
B 28.0
B 32.0
B 36.0
B 40.0
B 45.0

Following Selections
for Size M-1P Only

23.2–27.1
27.2–29.2
29.3–33.0
33.1–36.0

—
—
—
—

B 36.0
B 40.0
B 45.0
B 50.0

Thermal Unit Table 2
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

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
—

B 14.0
B 15.5
B 17.5
B 19.5
B 22.0

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
B 22.0
B 25.0
B 28.0
B 32.0

24.7–26.0
—
—

19.8–22.4
22.5–25.1
25.1–26.0

B 36.0
B 40.0
B 45.0

Following Selections
for Size M-1P Only.

24.7–29.1
29.2–31.7
31.8–36.0

—
—
—

B 36.0
B 40.0
B 45.0

Thermal Unit Table 3
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

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

B 14.0
B 15.5
B 17.5
B 19.5
B 22.0

14.4–16.1
16.2–18.0

—
—

B 25.0
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

B 22.0
B 25.0
B 28.0
B 32.0
B 36.0

23.1–26.0
—
—

20.2–22.6
22.7–25.5
25.6–26.0

B 40.0
B 45.0
B 50.0

Following Selections
for Size M-1P Only

25.9–29.0
29.1–30.8
30.9–32.7
32.8–36.0

—
—
—
—

B 45.0
B 50.0
B 56.0
B 62.0

Thermal Unit Table 4
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

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
—

B 14.0
B 15.5
B 17.5
B 19.5
B 22.0
B 25.0

Following Selections
for Size M-1 & M-1P 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 22.0
B 25.0
B 28.0
B 32.0
B 36.0
B 40.0
B 45.0

Following Selections
for Size M-1P Only.

25.4–28.4
28.5–33.1
33.2–36.0

—
—
—

B 40.0
B 45.0
B 50.0

Thermal Unit Table 5
(index and instructions: General to Mounting Thermal Units)

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 FLC

  

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

Thermal Unit Table 9
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

15.3–16.7
16.8–19.8
19.9–22.8
22.9–25.8
25.9–30.4

—
—
—
—
—

30.5–31.9
32.0–34.2
34.3–38.8
38.9–44.2
44.3–50.2

—
—
—
—
—

50.3–57.1
57.2–63.2
63.3–68.6
68.7–78.6
78.7–86.9
87.0–100.0

—
—
—
C 90.0
—
—

Thermal Unit Table 10
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

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 112.0

96.6–104.
105.–113.
114.–123.
124.–132.
133.–150.

CC 121.0
CC 132.0
CC 143.0
CC 156.0
CC 167.0

Thermal Unit Table 12
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

92.–100.
101.–109.
110.–119.
120.–131.
132.–139.

DD 112.0
—
—
—
DD 150.0

140.–156.
157.–166.
167.–180.
181.–189.
190.–209.

DD 160.0
DD 185.0
—
—
—

210.–225.
226.–238.
239.–263.
264.–300.

DD 250.0
DD 265.0
DD 280.0
—

Thermal Unit Table 14
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1.T.U.

2 T.U.

3 T.U.

0.43–0.47
0.48–0.51
0.52–0.56
0.57–0.64
0.65–0.69

0.41–0.45
0.46–0.50
0.51–0.55
0.56–0.62
0.63–0.67

0.40–0.41
0.42–0.46
0.47–0.51
0.52–0.57
0.58–0.62

A .49
A .54
A .59
A .65
A .71

0.70–0.76
0.77–0.84
0.85–0.91
0.92–1.01
1.02–1.15

0.68–0.72
0.73–0.81
0.82–0.88
0.89–0.97
0.98–1.08

0.63–0.67
0.68–0.75
0.76–0.80
0.81–0.89
0.90–1.02

A .78
A .86
A .95
A 1.02
A 1.16

1.16–1.23
1.24–1.37
1.38–1.45
1.46–1.56
1.57–1.67

1.09–1.18
1.19–1.32
1.33–1.40
1.41–1.48
1.49–1.60

1.03–1.09
1.10–1.21
1.22–1.29
1.30–1.37
1.38–1.48

A 1.25
A 1.39
A 1.54
A 1.63
A 1.75

1.68–1.77
1.78–1.92
1.93–2.09
2.10–2.31
2.32–2.56

1.61–1.72
1.73–1.84
1.85–2.00
2.01–2.22
2.23–2.45

1.49–1.58
1.59–1.72
1.73–1.85
1.86–2.05
2.06–2.29

A 1.86
A 1.99
A 2.15
A 2.31
A 2.57

2.57–2.92
2.93–3.16
3.17–3.48
3.49–3.83
3.84–4.24

2.46–2.82
2.83–3.08
3.09–3.39
3.40–3.75
3.76–4.16

2.30–2.62
2.63–2.84
2.85–3.10
3.11–3.46
3.47–3.85

A 2.81
A 3.61
A 3.95
A 4.32
A 4.79

4.25–4.62
4.63–4.92
4.93–5.61
5.62–5.85
5.86–6.36

4.17–4.51
4.52–4.83
4.84–5.49
5.50–5.67
5.68–6.16

3.86–4.16
4.17–4.46
4.47–5.08
5.09–5.35
5.36–5.82

A 5.30
A 5.78
A 6.20
A 6.99
A 7.65

6.37–6.99
7.00–7.67
7.68–8.15
8.16–9.00

6.17–6.75
6.76–7.00
—
—

5.83–6.34
6.35–6.95
6.96–7.00
—

A 8.38
A 9.25
A 9.85
A 11.0

Thermal Unit Table 13
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1.T.U.

2 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

0.29–0.31
0.32–0.34
0.35–0.38
0.39–0.45
0.46–0.54

0.28–0.30
0.31–0.34
0.35–0.37
0.38–0.44
0.45–0.53

B 0.44
B 0.51
B 0.57
B 0.63
B 0.71

0.55–0.61
0.62–0.66
0.67–0.73
0.74–0.81
0.82–0.94

0.55–0.61
0.62–0.66
0.67–0.73
0.74–0.81
0.82–0.94

0.54–0.59
0.60–0.64
0.65–0.72
0.73–0.80
0.81–0.90

B 0.81
B 0.92
B 1.03
B 1.16
B 1.30

0.95–1.05
1.06–1.22
1.23–1.34
1.35–1.51
1.52–1.71

0.95–1.05
1.06–1.22
1.23–1.34
1.35–1.51
1.52–1.71

0.91–1.03
1.04–1.14
1.15–1.27
1.28–1.43
1.44–1.62

B 1.45
B 1.67
B 1.88
B 2.10
B 2.40

1.72–1.93
1.94–2.14
2.15–2.40
2.41–2.72
2.73–3.15

1.72–1.93
1.94–2.14
2.15–2.40
2.41–2.72
2.73–3.15

1.63–1.77
1.78–1.97
1.98–2.32
2.33–2.51
2.52–2.99

B 2.65
B 3.00
B 3.30
B 3.70
B 4.15

3.16–3.55
3.56–4.00
4.01–4.40
4.41–4.88
4.89–5.19

3.16–3.55
3.56–4.00
4.01–4.40
4.41–4.88
4.89–5.19

3.00–3.42
3.43–3.75
3.76–3.98
3.99–4.48
4.49–4.93

B 4.85
B 5.50
B 6.25
B 6.90
B 7.70

5.20–5.73
5.74–6.39
6.40–7.13
7.14–7.90
7.91–8.55

5.20–5.73
5.74–6.39
6.40–7.13
7.14–7.90
7.91–8.55

4.94–5.21
5.22–5.84
5.85–6.67
6.68–7.54
7.55–8.14

B 8.20
B 9.10
B 10.2
B 11.5
B 12.8

8.56–9.53
9.54–10.6
10.7–11.8
11.9–13.2
13.3–14.9

8.56–9.53
9.54–10.6
10.7–11.8
11.9–12.0
—

8.15–8.72
8.73–9.66
9.67–10.5
10.6–11.3
11.4–12.0

B 14.0
B 15.5
B 17.5
B 19.5
B 22.0

15.0–16.6
16.7–18.0

—
—

—
—

B 25.0
B 28.0

Following Selections for Size 1 Only

—
—
—
16.7–18.9
19.0–21.2

11.9–13.2
13.3–14.9
15.0–16.6
16.7–18.9
19.0–21.2

—
11.4–12.7
12.8–14.1
14.2–15.9
16.0–17.5

B 19.5
B 22.0
B 25.0
B 28.0
B 32.0

21.3–23.0
23.1–25.5
25.6–26.0
—

21.3–23.0
23.1–25.5
25.6–26.0
—

17.6–19.7
19.8–21.9
22.0–24.4
24.5–26.0

B 36.0
B 40.0
B 45.0
B 50.0

Thermal Unit Table 15
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1.T.U.

2 T.U.

3 T.U.

0.31–0.33
0.34–0.36
0.37–0.40
0.41–0.48
0.49–0.57

0.31–0.33
0.34–0.36
0.37–0.40
0.41–0.48
0.49–0.57

0.29–0.31
0.32–0.36
0.37–0.38
0.39–0.46
0.47–0.55

B 0.44
B 0.51
B 0.57
B 0.63
B 0.71

0.58–0.64
0.65–0.70
0.71–0.77
0.78–0.85
0.86–0.99

0.58–0.64
0.65–0.70
0.71–0.77
0.78–0.85
0.86–0.99

0.56–0.61
0.62–0.66
0.67–0.75
0.76–0.83
0.84–0.93

B 0.81
B 0.92
B 1.03
B 1.16
B 1.30

1.00–1.10
1.11–1.28
1.29–1.41
1.42–1.58
1.59–1.80

1.00–1.10
1.11–1.28
1.29–1.41
1.42–1.58
1.59–1.80

0.94–1.06
1.07–1.18
1.19–1.31
1.32–1.47
1.48–1.67

B 1.45
B 1.67
B 1.88
B 2.10
B 2.40

1.81–2.03
2.04–2.25
2.26–2.51
2.52–2.83
2.84–3.29

1.81–2.03
2.04–2.25
2.26–2.51
2.52–2.83
2.84–3.29

1.68–1.83
1.84–2.04
2.05–2.38
2.39–2.60
2.61–3.13

B 2.65
B 3.00
B 3.30
B 3.70
B 4.15

3.30–3.75
3.76–4.22
4.23–4.65
4.66–5.16
5.17–5.53

3.30–3.75
3.76–4.22
4.23–4.65
4.66–5.16
5.17–5.53

3.14–3.59
3.60–3.94
3.95–4.19
4.20–4.72
4.73–5.21

B 4.85
B 5.50
B 6.25
B 6.90
B 7.70

5.54–6.09
6.10–6.80
6.81–7.60
7.61–8.35
8.36–9.04

5.54–6.09
6.10–6.80
6.81–7.60
7.61–8.35
8.36–9.04

5.22–5.51
5.52–6.17
6.18–7.07
7.08–8.05
8.06–8.69

B 8.20
B 9.10
B 10.2
B 11.5
B 12.8

9.05–9.99
10.0–11.1
11.2–12.3
12.4–13.7
13.8–15.4

9.05–9.99
10.0–11.1
11.2–12.0
—
—

8.70–9.32
9.33–10.2
10.3–11.3
11.4–12.0
—

B 14.0
B 15.5
B 17.5
B 19.5
B 22.0

15.5–18.0

—

—

B 25.0

Following Selections for Size 1 Only

—
—
—
15.5–17.2
17.3–19.4

11.2–12.3
12.4–13.7
13.8–15.4
15.5–17.2
17.3–19.4

—
11.4–12.1
12.2–13.7
13.8–15.2
15.3–17.2

B 17.5
B 19.5
B 22.0
B 25.0
B 28.0

19.5–21.7
21.8–23.9
24.0–26.0
—

19.5–21.7
21.8–23.9
24.0–26.0
—

17.3–18.9
19.0–21.4
21.5–23.7
23.8–26.0

B 32.0
B 36.0
B 40.0
B 45.0

Thermal Unit Table 16
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1.T.U.

2 T.U.

3 T.U.

16.2–17.5
17.6–18.8
18.9–20.5
20.6–22.2
22.3–23.7

15.1–16.2
16.3–17.3
17.4–19.5
19.6–20.7
20.8–22.3

14.3–15.4
15.5–16.4
16.5–18.5
18.6–19.6
19.7–21.1

—
CC 22.8
CC 24.6
CC 26.3
CC 28.8

23.8–25.4
25.5–27.3
27.4–29.3
29.4–31.5
31.6–33.9

22.4–24.0
24.1–25.7
25.8–27.5
27.6–29.6
29.7–31.7

21.2–22.7
22.8–24.4
24.5–26.1
26.2–28.1
28.2–30.0

CC 31.0
CC 33.3
CC 36.4
CC 39.6
CC 42.7

34.0–36.2
36.3–39.3
39.4–42.3
42.4–45.3
45.4–48.3

31.8–33.9
34.0–36.6
36.7–39.3
39.4–42.3
42.4–44.9

30.1–32.1
32.2–34.7
34.8–37.3
37.4–40.1
40.2–42.6

CC 46.6
CC 50.1
CC 54.5
CC 59.4
CC 64.3

48.4–52.0
52.1–54.9
55.0–59.7
59.8–65.4
65.5–69.6

45.0–48.3
48.4–50.9
51.0–55.5
55.6–59.9
60.0–64.2

42.7–45.8
45.9–48.3
48.4–52.6
52.7–56.8
56.9–60.9

CC 68.5
CC 74.6
CC 81.5
CC 87.7
CC 94.0

69.7–74.8
74.9–79.7
79.8–83.1
83.2–86.0
—

64.3–68.7
68.8–71.4
71.5–74.8
74.9–78.0
78.1–80.7

61.0–65.1
65.2–67.7
67.8–70.9
71.0–73.9
74.0–76.5

—
CC 112.0
CC 121.0
CC 132.0
CC 143.0

—
—
—

80.8–86.0
—
—

76.6–80.2
80.3–83.1
83.2–86.0

CC 156.0
CC 167.0
CC 180.0

Thermal Unit Table 17
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1.T.U.

2 T.U.

3 T.U.

0.42–0.46
0.47–0.50
0.51–0.55
0.56–0.62
0.63–0.67

0.39–0.43
0.44–0.47
0.48–0.52
0.53–0.58
0.59–0.64

0.38–0.40
0.41–0.44
0.45–0.49
0.50–0.55
0.56–0.60

A .49
A .54
A .59
A .65
A .71

0.68–0.73
0.74–0.81
0.82–0.89
0.90–0.98
0.99–1.12

0.65–0.68
0.69–0.77
0.78–0.84
0.85–0.93
0.94–1.05

0.61–0.65
0.66–0.72
0.73–0.79
0.80–0.88
0.89–0.98

A .78
A .86
A .95
A 1.02
A 1.16

1.13–1.20
1.21–1.34
1.35–1.41
1.42–1.51
1.52–1.62

1.06–1.13
1.14–1.25
1.26–1.33
1.34–1.42
1.43–1.52

0.99–1.07
1.08–1.17
1.18–1.25
1.26–1.33
1.34–1.44

A 1.25
A 1.39
A 1.54
A 1.63
A 1.75

1.63–1.73
1.74–1.86
1.87–2.02
2.03–2.25
2.26–2.46

1.53–1.63
1.64–1.75
1.76–1.90
1.91–2.13
2.14–2.33

1.45–1.53
1.54–1.65
1.66–1.79
1.80–1.99
2.00–2.18

A 1.86
A 1.99
A 2.15
A 2.31
A 2.57

2.47–2.77
2.78–2.99
3.00–3.26
3.27–3.59
3.60–3.99

2.34–2.73
2.74–2.86
2.87–3.14
3.15–3.47
3.48–3.83

2.19–2.45
2.46–2.65
2.66–2.90
2.91–3.19
3.20–3.56

A 2.81
A 3.61
A 3.95
A 4.32
A 4.79

4.00–4.42
4.43–4.61
4.62–5.23
5.24–5.39
5.40–5.88

3.84–4.16
4.17–4.43
4.44–5.00
5.01–5.16
5.17–5.56

3.57–3.83
3.84–4.08
4.09–4.64
4.65–5.00
5.01–5.36

A 5.30
A 5.78
A 6.20
A 6.99
A 7.65

5.89–6.56
6.57–7.18
7.19–7.80
7.81–9.00

5.57–6.22
6.23–6.89
6.90–7.00
—

5.37–5.87
5.88–6.43
6.44–6.79
6.80–7.00

A 8.38
A 9.25
A 9.85
A 11.0

Thermal Unit Table 18
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1.T.U.

2 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

14.4–15.3
15.4–16.4
16.5–18.4
18.5–19.6
19.7–21.0

13.6–14.5
14.6–15.5
15.6–17.4
17.5–18.5
18.6–19.9

—
CC 22.8
CC 24.6
CC 26.3
CC 28.8

22.2–23.4
23.5–25.6
25.7–27.3
27.4–29.4
29.5–31.5

21.1–22.7
22.8–24.2
24.3–25.9
26.0–27.8
27.9–29.8

20.0–21.5
21.6–22.9
23.0–24.5
24.6–26.3
26.4–28.2

CC 31.0
CC 33.3
CC 36.4
CC 39.6
CC 42.7

31.6–33.7
33.8–36.5
36.6–39.1
39.2–41.7
41.8–44.8

29.9–31.7
31.8–34.2
34.3–36.9
37.0–39.8
39.9–42.3

28.3–30.0
30.1–32.3
32.4–34.9
35.0–37.6
37.7–40.0

CC 46.6
CC 50.1
CC 54.5
CC 59.4
CC 64.3

44.9–48.0
48.1–50.7
50.8–54.9
55.0–59.9
60.0–63.3

42.4–45.3
45.4–47.9
48.0–51.9
52.0–56.5
56.6–60.7

40.1–42.8
42.9–45.3
45.4–49.1
49.2–53.4
53.5–57.4

CC 68.5
CC 74.6
CC 81.5
CC 87.7
CC 94.0

63.4–67.2
67.3–72.4
72.5–74.9
75.0–77.4
77.5–80.7

60.8–64.8
64.9–67.1
67.2–70.1
70.2–72.9
73.0–74.9

57.5–61.3
61.4–63.5
63.6–66.3
66.4–69.0
69.1–70.9

—
CC 112.0
CC 121.0
CC 132.0
CC 143.0

80.8–83.1
83.2–86.0
—
—

75.0–77.9
78.0–80.9
81.0–82.9
83.0–86.0

71.0–73.7
73.8–76.5
76.6–78.4
78.5–86.0

CC 156.0
CC 167.0
CC 180.0
CC 196.0

Thermal Unit Table 19
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

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 112.0

96.6–104.
105.–113.
114.–123.
124.–133.

CC 121.0
CC 132.0
CC 143.0
CC 156.0

Thermal Unit Table 20
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

133.–148.
149.–174.
175.–195.
196.–219.
220.–239.

B1.30
B1.45
B1.67
B1.88
B2.10

240.–271.
272.–308.
309.–348.
349.–397.
398.–429.

B2.40
B2.65
B3.00
B3.30
B3.70

430.–495.
496.–520.

B4.15
B4.85

Thermal Unit Table 21
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Load

128.–140.
141.–163.
164.–179.
180.–201.
202.–227.

B1.30
B1.45
B1.67
B1.88
B2.10

228.–251.
252.–278.
279.–308.
309.–346.
347.–380.

B2.40
B2.65
B3.00
B3.30
B3.70

381.–426.
427.–454.
455.–489.
490.–520.

B4.15
B4.85
B5.50
B6.25

Thermal Unit Table 22
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

92.0–100.
101.–109.
110.–119.
120.–131.
132.–139.

DD 112.0
—
—
—
DD 150.0

140.–156.
157.–166.
167.–180.
181.–189.
190.–209.

DD 160.0
DD 185.0
—
DD 220.0
—

210.–225.
226.–238.
239.–266.

DD 250.0
DD 265.0
DD 280.0

Thermal Unit Table 24
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

88.2–95.1
95.2–101.
102.–111.
112.–119.
120.–131.

DD 112.0
—
—
—
DD 150.0

132.–149.
150.–170.
171.–180.
181.–197.
198.–204.

DD 160.0
DD 185.0
DD 220.0
DD 240.0
DD 250.0

205.–213.
214.–237.
238.–243.
244.–266.

DD 265.0
DD 280.0
—
—

Thermal Unit Table 26
(index and instructions: General to Mounting Thermal Units)

Size 7 Type J

Size 8 Type K

Thermal Unit Number

Current Transformer Ratio

120/5

2000/5

Motor FLC

166.–187.
188.–211.
212.–232.
233.–267.
268.–301.

277.–312.
313.–352.
353.–388.
389.–445.
446.–503.

B1.03
B1.16
B1.30
B1.45
B1.67

302.–336.
337.–383.
384.–425.
426.–466.
467.–522.

504.–561.
562.–640.
641.–708.
709.–777.
778.–870.

B1.88
B2.10
B2.40
B2.65
B3.00

523.–587.
588.–656.
657.–764.

871.–978.
979.–1093.
1094.–1215.

B3.30
B3.70
B4.15

Thermal Unit Table 28
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

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 112.0
CC 121.0
CC 132.0

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 143.0
CC 156.0
CC 167.0
CC 180.0
CC 196.0

Thermal Unit Table 31
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.31–0.35
0.36–0.39
0.40–0.44

B0.44
B0.51
B0.57

0.45–0.50
0.51–0.61
0.62–0.68

B0.63
B0.71
B0.81

0.69–0.73
0.74–0.82
0.83–0.92

B0.92
B1.03
B1.16

0.93–1.03
1.04–1.19
1.20–1.34

B1.30
B1.45
B1.67

1.35–1.50
1.51–1.74
1.75–1.97

B1.88
B2.10
B2.40

1.98–2.14
2.15–2.47
2.48–2.91

B2.65
B3.00
B3.30

2.92–3.31
3.32–3.75
3.76–4.05

B3.70
B4.15
B4.85

4.06–4.94
4.95–5.52
5.53–6.11

B6.25
B6.90
B7.70

6.12–6.52
6.53–7.31
7.32–8.43

B8.20
B9.10
B10.2

8.44–9.83
9.84–10.7
10.8–11.6

B11.5
B12.8
B14.0

11.7–12.9
13.0–14.3
14.4–15.7

B15.5
B17.5
B19.5

15.8–17.8
17.9–20.3
20.4–23.3

B22.0
B25.0
B28.0

23.4–26.6
26.7–30.3
30.4–35.3

B32.0
B36.0
B40.0

35.4–41.5
41.6–45

B45.0
B50.0

Thermal Unit Table 34
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

15.1–16.2
16.3–17.5
17.6–19.1
19.2–20.7
20.8–22.2

—
CC 22.8
CC 24.6
CC 26.3
CC 28.8

22.3–24.0
24.1–25.7
25.8–27.8
27.9–30.1
30.2–32.5

CC 31.0
CC 33.3
CC 36.4
CC 39.6
CC 42.7

32.6–35.1
35.2–38.0
38.1–41.1
41.2–44.0
44.1–47.2

CC 46.6
CC 50.1
CC 54.5
CC 59.4
CC 64.3

47.3–51.1
51.2–55.8
55.9–59.5
59.6–64.5
64.6–69.5

CC 68.5
CC 74.6
CC 81.5
CC 87.7
CC 94.0

69.6–75.0
75.1–78.1
78.2–82.3
82.4–86.0

—
CC 112.0
CC 121.0
CC 132.0

Thermal Unit Table 40
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

15.3–16.7
16.8–19.8
19.9–22.8
22.9–25.8
25.9–30.4

—
—
—
—
—

30.5–31.9
32.0–34.2
34.3–38.8
38.9–44.2
44.3–50.2

—
—
—
—
—

50.3–57.1
57.2–63.2
63.3–68.6
68.7–78.6
78.7–86.0

—
—
—
C 90.0
—

Thermal Unit Table 41
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.81–0.92
0.93–1.07
1.08–1.14
1.15–1.26
1.27–1.49

B1.16
B1.30
B1.45
B1.67
B1.88

1.50–1.73
1.74–1.89
1.90–2.16
2.17–2.37
2.38–2.66

B2.10
B2.40
B2.65
B3.00
B3.30

2.67–2.99
3.00–3.40
3.41–3.94
3.95–4.15
4.16–4.49

B3.70
B4.15
B4.85
B5.50
B6.25

4.50–5.15
5.16–5.77
5.78–6.61
6.62–7.14
7.15–7.97

B6.90
B7.70
B8.20
B9.10
B10.2

7.98–8.15
8.16–9.32
9.33–9.97
9.98–10.7
10.8–12.0

B11.5
B12.8
B14.0
B15.5
B17.5

12.1–13.9
14.0–15.7
15.8–18.4
18.5–21.6
21.7–24.0

B19.5
B22.0
B25.0
B28.0
B32.0

24.1–28.6
28.7–30.7
30.8–33.5
33.6–36.0

B36.0
B40.0
B45.0
B50.0

Thermal Unit Table 43
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.41–0.44

0.45–0.49

0.50–0.53

0.54–0.58

0.59–0.65

A .49

A .54

A .59

A .65

A .71

0.66–0.71

0.72–0.78

0.79–0.85

0.86–0.96

0.97–1.04

A .78

A .86

A .95

A 1.02

A  1.16

1.05–1.16

1.17–1.29

1.30–1.37

1.38–1.47

1.48–1.56

A 1.25

A 1.39

A 1.54

A 1.63

A 1.75

1.57–1.65

1.66–1.79

1.80–1.95

1.96–2.15

2.16–2.38

A 1.86

A 1.99

A 2.15

A 2.31

A 2.57

2.39–2.75

2.76–2.84

2.85–3.06

3.07–3.45

3.46–3.70

A 2.81

A 3.61

A 3.95

A 4.32

A 4.79

3.71–4.07

4.08–4.32

4.33–4.90

4.91–5.35

5.36–5.85

A 5.30

A 5.78

A 6.20

A 6.99

A 7.65

5.86–6.41

6.42–6.79

6.80–7.57

7.58–8.15

8.16–8.98

A  8.38

A 9.25

A 9.85

A  11.0

A 11.9

8.99–9.67

9.68–9.95

9.96–10.8

10.9–12.1

12.2–13.1

A 13.2

A 14.1

A 14.8

A 16.2

A 17.9

13.2–13.9

14.0–15.0

15.1–16.0

A 19.8

A 21.3

A 25.2

Thermal Unit Table 44
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.34–0.38
0.39–0.43
0.44–0.48
0.49–0.53
0.54–0.62

B0.44
B0.51
B0.57
B0.65
B0.71

0.63–0.69
0.70–0.78
0.79–0.88
0.89–0.99
1.00–1.10

B0.81
B0.92
B1.03
B1.16
B1.30

1.11–1.26
1.27–1.43
1.44–1.59
1.60–1.81
1.82–2.00

B1.45
B1.67
B1.88
B2.10
B2.40

2.01–2.28
2.29–2.52
2.53–2.87
2.88–3.28
3.29–3.75

B2.65
B3.00
B3.30
B3.70
B4.15

3.76–4.27
4.28–4.77
4.78–5.27
5.28–5.91
5.92–6.25

B4.85
B5.50
B6.25
B6.90
B7.70

6.26–6.83
6.84–7.65
7.66–8.55
8.56–9.56
9.57–10.3

B8.20
B9.10
B10.2
B11.5
B12.8

10.4–11.3
11.4–12.4
12.5–14.1
14.2–15.7
15.8–17.9

B14.0
B15.5
B17.5
B19.5
B22.0

18.0–20.1
20.2–22.5
22.6–25.0

B25.0
B28.0
B32.0

Thermal Unit Table 49
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

82.5–88.2
88.3–95.9
96.0–102.
103.–109.
110.–121.

DD 112.0
—
—
—
DD 150.0

122.–139.
140.–154.
155.–163.
164.–175.
176.–184.

DD 160.0
DD 185.0
DD 220.0
DD 240.0
DD 250.0

185.–195.
196.–215.
216.–224.
225.–243.
244.–266.

DD 265.0
DD 280.0
—
—
—

Thermal Unit Table 53
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T. U.

3 T. U.

0.31–0.33
0.34–0.36
0.37–0.40
0.41–0.48
0.49–0.57

0.29–0.31
0.32–0.36
0.37–0.38
0.39–0.46
0.47–0.55

B0.44
B0.51
B0.57
B0.63
B0.71

0.58–0.64
0.65–0.70
0.71–0.77
0.78–0.85
0.86–0.99

0.56–0.61
0.62–0.66
0.67–0.75
0.76–0.83
0.84–0.93

B0.81
B0.92
B1.03
B1.16
B1.30

1.00–1.10
1.11–1.28
1.29–1.41
1.42–1.58
1.59–1.80

0.94–1.06
1.07–1.18
1.19–1.31
1.32–1.47
1.48–1.67

B1.45
B1.67
B1.88
B2.10
B2.40

1.81–2.03
2.04–2.25
2.26–2.51
2.52–2.83
2.84–3.29

1.68–1.83
1.84–2.04
2.05–2.38
2.39–2.60
2.61–3.13

B2.65
B3.00
B3.30
B3.70
B4.15

3.30–3.75
3.76–4.22
4.23–4.65
4.66–5.16
5.17–5.53

3.14–3.59
3.60–3.94
3.95–4.19
4.20–4.72
4.73–5.21

B4.85
B5.50
B6.25
B6.90
B7.70

5.54–6.09
6.10–6.80
6.81–7.60
7.61–8.35
8.36–9.00

5.22–5.51
5.52–6.17
6.18–7.00
—
—

B8.20
B9.10
B10.2
B11.5
B12.8

Thermal Unit Table 54
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

2 T. U.

3 T. U.

43.6–45.5
45.6–49.6
49.7–53.1
53.2–57.6
57.7–62.4

41.1–43.5
43.6–46.8
46.9–50.0
50.1–54.9
55.0–57.5

CC 64.3
CC 68.5
CC 74.6
CC 81.5
CC 87.7

62.5–67.5
67.6–71.1
71.2–75.9
76.0–81.9
82.0–84.6

57.6–61.8
61.9–66.2
66.3–72.4
72.5–78.1
78.2–80.7

CC 94.0
—
CC 112.0
CC 121.0
CC 132.0

84.7–90.7
90.8–98.4
98.5–105.
106.–117.
118.–123.

80.8–86.5
86.6–93.9
94.0–100.
101.–112.
113.–117.

CC 143.0
CC 156.0
CC 167.0
CC 180.0
CC 196.0

124.–133.
—

118.–123.
124.–133.

CC 208.0
CC 219.0

Thermal Unit Table 56
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 or 2 T. U.

3 T. U.

3.29–3.74
3.75–4.23
4.24–4.68
4.69–5.22
5.23–5.67

3.18–3.40
3.41–3.76
3.77–4.00
4.01–4.57
4.58–5.03

B4.85
B5.50
B6.25
B6.90
B7.70

5.68–6.13
6.14–6.91
6.92–7.70
7.71–8.56
8.57–9.39

5.04–5.32
5.33–5.97
5.98–6.88
6.89–7.82
7.83–8.47

B8.20
B9.10
B10.2
B11.5
B12.8

9.40–10.4
10.5–11.6
11.7–12.9
13.0–14.6
14.7–16.5

8.48–9.15
9.16–10.1
10.2–11.2
11.3–12.0
12.1–13.6

B14.0
B15.5
B17.5
B19.5
B22.0

16.6–18.5
18.6–21.0
21.1–23.6
23.7–26.3
26.4–29.3

13.7–15.2
15.3–17.1
17.2–19.0
19.1–21.5
21.6–24.1

B25.0
B28.0
B32.0
B36.0
B40.0

29.4–35.1
35.2–36.1
36.2–39.1
39.2–41.5
41.6–45.0

24.2–27.0
27.1–28.7
28.8–30.4
30.5–32.2
32.3–35.4

B45.0
B50.0
B56.0
B62.0
B70.0

—
—

35.5–38.2
38.3–45.0

B79.0
B88.0

Thermal Unit Table 58
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 or 2 T. U.

3 T. U.

3.37–3.82
3.83–4.33
4.34–4.79
4.80–5.33
5.34–5.79

3.28–3.51
3.52–3.89
3.90–4.14
4.15–4.73
4.74–5.22

B4.85
B5.50
B6.25
B6.90
B7.70

5.80–6.27
6.28–7.03
7.04–7.88
7.89–8.73
8.74–9.55

5.23–5.53
5.54–6.21
6.22–7.17
7.18–8.19
8.20–8.90

B8.20
B9.10
B10.2
B11.5
B12.8

9.56–10.6
10.7–11.8
11.9–13.1
13.2–14.9
15.0–16.9

8.91–9.57
9.58–10.6
10.7–11.8
11.9–12.7
12.8–14.4

B14.0
B15.5
B17.5
B19.5
B22.0

17.0–18.8
18.9–21.5
21.6–24.1
24.2–26.8
26.9–29.9

14.5–16.1
16.2–18.2
18.3–20.2
20.3–22.8
22.9–25.6

B25.0
B28.0
B32.0
B36.0
B40.0

30.0–35.5
35.6–36.5
36.6–39.6
39.7–41.5
41.6–45.0

25.7–28.8
28.9–30.6
30.7–32.4
32.5–34.6
34.7–38.6

B45.0
B50.0
B56.0
B62.0
B70.0

—

38.7–45.0

B79.0

Thermal Unit Table 59
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 or 2 T. U.

3 T. U.

0.34–0.38
0.39–0.43
0.44–0.47
0.48–0.53
0.54–0.60

0.29–0.31
0.32–0.35
0.36–0.38
0.39–0.46
0.47–0.55

B0.44
B0.51
B0.57
B0.63
B0.71

0.61–0.68
0.69–0.76
0.77–0.86
0.87–0.97
0.98–1.07

0.56–0.62
0.63–0.67
0.68–0.75
0.76–0.84
0.85–0.95

B0.81
B0.92
B1.03
B1.16
B1.30

1.08–1.23
1.24–1.39
1.40–1.55
1.56–1.77
1.78–1.96

0.96–1.09
1.10–1.21
1.22–1.35
1.36–1.53
1.54–1.73

B1.45
B1.67
B1.88
B2.10
B2.40

1.97–2.15
2.16–2.41
2.42–2.71
2.72–3.03
3.04–3.53

1.74–1.90
1.91–2.14
2.15–2.34
2.35–2.67
2.68–3.22

B2.65
B3.00
B3.30
B3.70
B4.15

3.54–4.01
4.02–4.56
4.57–5.03
5.04–5.59
5.60–5.95

3.23–3.48
3.49–3.87
3.88–4.14
4.15–4.73
4.74–5.28

B4.85
B5.50
B6.25
B6.90
B7.70

5.96–6.58
6.59–7.31
7.32–8.15
8.16–9.13
9.14–9.91

5.29–5.64
5.65–6.39
6.40–7.43
7.44–8.55
8.56–9.40

B8.20
B9.10
B10.2
B11.5
B12.8

9.92–10.7
10.8–12.1
12.2–13.5
13.6–15.1
15.2–17.0

9.41–10.0
10.1–11.2
11.3–12.5
12.6–13.5
13.6–15.4

B14.0
B15.5
B17.5

B19.5
B22.0

17.1–18.9
19.0–21.5
21.6–24.0
24.1–26.0
—

15.5–17.5
17.6–19.9
20.0–22.2
22.3–25.5
25.6–26.0

B25.0
B28.0
B32.0
B36.0
B40.0

Thermal Unit Table 61
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

2 T. U.

3 T. U.

46.8–50.0
50.1–54.2
54.3–58.3
58.4–63.6
63.7–68.5

45.3–48.2
48.3–52.4
52.5–56.4
56.5–61.2
61.3–66.1

CC 64.3
CC 68.5
CC 74.6
CC 81.5
CC 87.7

68.6–74.0
74.1–79.8
79.9–83.0
83.1–88.9
89.0–95.6

66.2–71.4
71.5–77.0
77.1–79.0
79.1–84.7
84.8–91.1

CC 94.0
—
CC 112.0
CC 121.0
CC 132.0

95.7–102.
103.–109.
110.–119.
120.–133.
—

91.2–98.1
98.2–104.
105.–113.
114.–123.
124.–133.

CC 143.0
CC 156.0
CC 167.0
CC 180.0
CC 196.0

Thermal Unit Table 65
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.31–0.35
0.36–0.39
0.40–0.44
0.45–0.50
0.51–0.58

B0.44
B0.51
B0.57
B0.63
B0.71

0.59–0.65
0.66–0.73
0.74–0.82
0.83–0.92
0.93–1.03

B0.81
B0.92
B1.03
B1.16
B1.30

1.04–1.19
1.20–1.34
1.35–1.50
1.51–1.67
1.68–1.89

B1.45
B1.67
B1.88
B2.10
B2.40

1.90–2.14
2.15–2.36
2.37–2.65
2.66–2.97
2.98–3.47

B2.65
B3.00
B3.30
B3.70
B4.15

3.48–3.94
3.95–4.44
4.45–4.94
4.95–5.52
5.53–5.88

B4.85
B5.50
B6.25
B6.90
B7.70

5.89–6.52
6.53–7.31
7.32–8.21
8.22–9.18
9.19–9.90

B8.20
B9.10
B10.2
B11.5
B12.8

10.0–11.0
11.1–12.4
12.5–13.9
14.0–15.7
15.8–17.8

B14.0
B15.5
B17.5
B19.5
B22.0

17.9–20.0
20.1–22.9
23.0–25.0

B25.0
B28.0
B32.0

Following Selections
for Size 2 Only.

23.0–25.7
25.8–28.6
28.7–32.2
32.3–35.8
35.9–40.1

B32.0
B36.0
B40.0
B45.0
B50.0

40.2–44.4
44.5–50.0

B56.0
B62.0

Thermal Unit Table 66
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.31–0.32
0.33–0.36
0.37–0.41
0.42–0.49
0.50–0.54

B0.44
B0.51
B0.57
B0.63
B0.71

0.55–0.61
0.62–0.67
0.68–0.76
0.77–0.87
0.88–0.98

B0.81
B0.92
B1.03
B1.16
B1.30

0.99–1.05
1.06–1.25
1.26–1.33
1.34–1.56
1.57–1.71

B1.45
B1.67
B1.88
B2.10
B2.40

1.72–1.97
1.98–2.15
2.16–2.42
2.43–2.78
2.79–3.28

B2.65
B3.00
B3.30
B3.70
B4.15

3.29–3.88
3.89–4.13
4.14–4.43
4.44–4.96
4.97–5.35

B4.85
B5.50
B6.25
B6.90
B7.70

5.36–5.91
5.92–6.79
6.80–7.56
7.57–7.83
7.84–8.09

B8.20
B9.10
B10.2
B11.5
B12.8

8.10–9.51
9.52–10.1
10.2–11.3
11.4–13.1
13.2–14.9

B14.0
B15.5
B17.5
B19.5
B22.0

15.0–16.1
16.2–17.8
17.9–19.1
19.2–22.4
22.5–23.5

B25.0
B28.0
B32.0
B36.0
B40.0

23.6–26.0

B45.0

Thermal Unit Table 67
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

3.79–4.14
4.15–4.44
4.45–5.22
5.23–5.29
5.30–5.99

B5.50
B6.25
B6.90
B7.70
B8.20

6.00–6.82
6.83–7.68
7.69–7.92
7.93–8.47
8.48–9.99

B9.10
B10.2
B11.5
B12.8
B14.0

10.0–10.8
10.9–12.3
12.4–12.9
13.0–15.1
15.2–16.7

B15.5
B17.5
B19.5
B22.0
B25.0

16.8–17.9
18.0–20.1
20.2–23.8
23.9–25.8
25.9–28.3

B28.0
B32.0
B36.0
B40.0
B45.0

28.4–29.6
29.7–32.1
32.2–34.4
34.5–38.3
38.4–39.9

B50.0
B56.0
B62.0
B70.0
B79.0

40.0–45.0

B88.0

Thermal Unit Table 68
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

14.9–16.1
16.2–17.3
17.4–19.5
19.6–20.7
20.8–22.4

—
CC 22.8
CC 24.6
CC 26.3
CC 28.8

22.5–23.9
24.0–25.8
25.9–27.6
27.7–29.7
29.8–31.8

CC 31.0
CC 33.3
CC 36.4
CC 39.6
CC 42.7

31.9–34.2
34.3–37.0
37.1–39.6
39.7–42.5
42.6–45.0

CC 46.6
CC 50.1
CC 54.5
CC 59.4
CC 64.3

45.1–48.6
48.7–51.2
51.3–56.0
56.1–60.1
60.2–64.3

CC 68.5
CC 74.6
CC 81.5
CC 87.7
CC 94.0

64.4–68.9
69.0–71.9
72.0–75.4
75.5–78.9
79.0–82.1

—
CC 112.0
CC 121.0
CC 132.0
CC 143.0

82.2–86.0

CC 156.0

Thermal Unit Table 69
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 or 2 T. U.

3 T. U.

3.46–3.90
3.91–4.44
4.45–4.91
4.92–5.51
5.52–5.84

3.38–3.65
3.66–4.07
4.08–4.36
4.37–5.19
5.20–5.59

B4.85
B5.50
B6.25
B6.90
B7.70

5.85–6.54
6.55–7.33
7.34–8.31
8.32–9.22
9.23–10.0

5.60–5.98
5.99–6.78
6.79–7.91
7.92–9.12
9.13–10.0

B8.20
B9.10
B10.2
B11.5
B12.8

10.1–11.2
11.3–12.5
12.6–14.2
14.3–16.1
16.2–18.4

10.1–10.7
10.8–12.0
12.1–13.5
13.6–14.6
14.7–16.7

B14.0
B15.5
B17.5
B19.5
B22.0

18.5–20.5
20.6–23.2
23.3–26.6
26.7–29.6
29.7–33.5

16.8–18.9
19.0–21.6
21.7–24.1
24.2–27.6
27.7–31.2

B25.0
B28.0
B32.0
B36.0
B40.0

33.6–37.2
37.3–41.5
41.6–45.0
—

31.3–35.5
35.6–37.8
37.9–41.5
41.6–45.0

B45.0
B50.0
B56.0
B62.0

Thermal Unit Table 72
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T. U.

3 T. U.

2.38–2.62
2.63–2.94
2.95–3.31

2.38–2.62
2.63–2.94
2.95–3.31

—
—
—

3.32–3.43
3.44–3.81
3.82–4.32

3.32–3.43
3.44–3.81
3.82–4.32

—
—
—

4.33–4.75
4.76–5.38
5.39–5.75

4.33–4.75
4.76–5.38
5.39–5.75

—
—
—

5.76–5.97
5.98–6.30
6.31–6.55

5.76–5.97
5.98–6.30
6.31–6.55

—
—
—

6.56–6.89
6.90–7.14
7.15–7.36

6.56–6.89
6.90–7.14
7.15–7.36

—
—
—

7.37–8.30
8.31–8.59
8.60–9.01

7.37–8.30
8.31–8.59
8.60–9.01

—
—
—

9.02–9.68
9.69–9.99
10.0–10.9

9.02–9.68
9.69–9.99
10.0–10.9

—
—
—

11.0–11.3
11.4–12.4
12.5–12.9

11.0–11.3
11.4–12.0
—

—
—
—

13.0–14.0
14.1–14.5
14.6–15.7

—
—
—

—
—
—

15.8–16.6
16.7–18.0

—
—

—
—

Following Selections for Size M–1 & M–1P Only.

—
—

11.4–12.4
12.5–12.9

—
—

—
—
—

13.0–14.0
14.1–14.5
14.6–15.7

—
—
—

—
16.7–17.6
17.7–18.3

15.8–16.6
16.7–17.6
17.7–18.3

—
—
—

18.4–19.4
19.5–20.5
20.6–21.7

18.4–19.4
19.5–20.5
20.6–21.7

—
—
—

21.8–22.8
22.9–24.3
24.4–24.7

21.8–22.8
22.9–24.3
24.4–24.7

—
—
—

24.8–25.4
25.5–26.0

24.8–25.4
25.5–26.0

—
—

Following Selections for Size M–1P Only.

26.1–27.7
27.8–28.9
29.0–30.6

—
—
—

—
—
—

30.7–32.5
32.6–36.0

—
—

—
—

Thermal Unit Table 73
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T. U.

3 T. U.

2.42–2.67
2.68–3.00
3.01–3.36

2.42–2.67
2.68–3.00
3.01–3.36

—
—
—

3.37–3.53
3.54–3.91
3.92–4.41

3.37–3.53
3.54–3.91
3.92–4.41

—
—
—

4.42–4.83
4.84–5.45
5.46–5.89

4.42–4.83
4.84–5.45
5.46–5.89

—
—
—

5.90–6.04
6.05–6.55
6.56–6.72

5.90–6.04
6.05–6.55
6.56–6.72

—
—
—

6.73–7.00
7.01–7.39
7.40–7.54

6.73–7.00
7.01–7.39
7.40–7.54

—
—
—

7.55–8.41
8.42–8.91
8.92–9.16

7.55–8.41
8.42–8.91
8.92–9.16

—
—
—

9.17–10.0
10.1–10.3
10.4–11.4

9.17–10.0
10.1–10.3
10.4–11.4

—
—
—

11.5–11.8
11.9–12.9
13.0–13.4

11.5–11.8
11.9–12.9
—

—
—
—

13.5–14.2
14.3–15.1
15.2–18.0

—
—
—

—
—
—

Following Selections for Size M–1 & M–1P Only.

—
—
—

11.5–11.8
11.9–12.9
13.0–13.4

—
—
—

—
—
15.2–17.1

13.5–14.2
14.3–15.1
15.2–17.1

—
—
—

17.2–18.0
18.1–18.9
19.0–19.7

17.2–18.0
18.1–18.9
19.0–19.7

—
—
—

19.8–20.9
21.0–21.9
22.0–23.1

19.8–20.9
21.0–21.9
22.0–23.1

—
—
—

23.2–24.3
24.4–25.5
25.6–26.0

23.2–24.3
24.4–25.5
25.6–26.0

—
—
—

Following Selections for Size M–1P Only.

26.1–26.8
26.9–27.3
27.4–28.7

—
—
—

—
—
—

28.8–30.2
30.3–31.9
32.0–36.0

—
—
—

—
—
—

Thermal Unit Table 74
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T. U.

3 T. U.

2.23–2.47
2.48–2.76
2.77–3.04

2.23–2.47
2.48–2.76
2.77–3.04

—
—
—

3.05–3.24
3.25–3.61
3.62–4.19

3.05–3.24
3.25–3.61
3.62–4.19

—
—
—

4.20–4.62
4.63–5.14
5.15–5.39

4.20–4.62
4.63–5.14
5.15–5.39

—
—
—

5.40–5.69
5.70–5.99
6.00–6.29

5.40–5.69
5.70–5.99
6.00–6.29

—
—
—

6.30–6.64
6.65–6.99
7.00–7.39

6.30–6.64
6.65–6.99
7.00–7.39

—
—
—

7.40–7.79
7.80–7.94
7.95–8.49

7.40–7.79
7.80–7.94
7.95–8.49

—
—
—

8.50–8.99
9.00–9.59
9.60–10.1

8.50–8.99
9.00–9.59
9.60–10.1

—
—
—

10.2–10.6
10.7–11.3
11.4–12.0

10.2–10.6
10.7–11.3
11.4–12.0

—
—
—

12.0–12.6
12.7–13.8
13.9–14.7

—
—
—

—
—
—

14.8–15.2
15.3–16.2
16.3–18.0

—
—
—

—
—
—

Following Selections for Size 1 Only.

—
—
13.9–14.7

12.0–12.6
12.7–13.8
13.9–14.7

—
—
—

14.8–15.2
15.3–16.2
16.3–17.4

14.8–15.2
15.3–16.2
16.3–17.4

—
—
—

17.5–18.5
18.6–19.6
19.7–20.2

17.5–18.5
18.6–19.6
19.7–20.2

—
—
—

20.3–21.5
21.6–22.4
22.5–23.2

20.3–21.5
21.6–22.4
22.5–23.2

—
—
—

23.3–24.3
24.4–25.4
25.5–26.0

23.3–24.3
24.4–25.4
25.5–26.0

—
—
—

Thermal Unit Table 75
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

3.22–3.57
3.58–4.14
4.15–4.56

—
—
—

4.57–5.10
5.11–5.39
5.40–5.64

—
—
—

5.65–5.96
5.97–6.25
6.26–6.58

—
—
—

6.59–6.91
6.92–7.41
7.42–7.82

—
—
—

7.83–8.32
8.33–8.89
8.90–9.47

—
—
—

9.48–10.0
10.1–10.5
10.6–11.1

—
—
—

11.2–12.0
12.1–12.7
12.8–13.5

—
—
—

13.6–14.6
14.7–15.7
15.8–16.5

—
—
—

16.6–17.4
17.5–18.8
18.9–20.1

—
—
—

20.2–21.0
21.1–21.6
21.7–23.3

—
—
—

23.4–24.3
24.4–25.0
25.1–26.3

—
—
—

26.4–27.6
27.7–29.1
29.2–30.4

—
—
—

30.5–32.0
32.1–33.3
33.4–35.2

—
—
—

35.3–37.0
37.1–38.5
38.6–40.7

—
—
—

40.8–45.0

—

Thermal Unit Table 76
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

19.9–20.8
20.9–22.2
22.3–23.8

—
—
—

23.9–25.4
25.5–27.2
27.3–29.2

—
—
—

29.3–31.9
32.0–33.8
33.9–36.1

—
—
—

36.2–38.5
38.6–41.4
41.5–43.6

—
—
—

43.7–45.9
46.0–48.2
48.3–50.7

—
—
—

50.8–53.9
54.0–56.7
56.8–60.8

—
—
—

60.9–67.6
67.7–73.6
73.7–82.9

—
—
—

83.0–86.0

—

Thermal Unit Table 77
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

48.0–50.9
51.0–53.7
53.8–57.0

—
—
—

57.1–60.4
60.5–64.0
64.1–71.9

—
—
—

72.0–83.9
84.0–93.1
93.2–104

—
—
—

105–109
110–123
124–133

—
FB 105.0
—

Thermal Unit Table 78
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T. U.

2 T. U. or
3 T. U.

2.26–2.51
2.52–2.82
2.83–3.09

2.26–2.51
2.52–2.82
2.83–3.09

—
—
—

3.10–3.30
3.31–3.69
3.70–4.27

3.10–3.30
3.31–3.69
3.70–4.27

—
—
—

4.28–4.72
4.73–5.25
5.26–5.53

4.28–4.72
4.73–5.25
5.26–5.53

—
—
—

5.54–5.81
5.82–6.14
6.15–6.44

5.54–5.81
5.82–6.14
6.15–6.44

—
—
—

6.45–6.81
6.82–7.19
7.20–7.59

6.45–6.81
6.82–7.19
7.20–7.59

—
—
—

7.60–7.99
8.00–8.17
8.18–8.74

7.60–7.99
8.00–8.17
8.18–8.74

—
—
—

8.75–9.31
9.32–9.94
9.95–10.5

8.75–9.31
9.32–9.94
9.95–10.5

—
—
—

10.6–11.1
11.2–11.9
12.0–12.4

10.6–11.1
11.2–12.0

—

—
—
—

12.5–13.1
13.2–14.3
14.4–15.3

—
—
—

—
—
—

15.4–15.9
16.0–18.0

—
—

—
—

Following Selections for Size 1 Only.

—
—
—

12.0–12.4
12.5–13.1
13.2–14.3

—
—
—

14.4–15.3
15.4–15.9
16.0–16.9

14.4–15.3
15.4–15.9
16.0–16.9

—
—
—

17.0–18.3
18.4–19.5
19.6–20.5

17.0–18.3
18.4–19.5
19.6–20.5

—
—
—

20.6–21.1
21.2–22.6
22.7–23.7

20.6–21.1
21.2–22.6
22.7–23.7

—
—
—

23.8–24.3
24.4–26.0

23.8–24.3
24.4–26.0

—

Thermal Unit Table 79
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

3.31–3.67
3.68–4.23
4.24–4.69

—
—
—

4.70–5.21
5.22–5.49
5.50–5.74

—
—
—

5.75–6.07
6.08–6.35
6.36–6.71

—
—
—

6.72–7.03
7.04–7.53
7.54–7.91

—
—
—

7.92–8.53
8.54–9.14
9.15–9.71

—
—
—

9.72–10.2
10.3–10.8
10.9–11.5

—
—
—

11.6–12.3
12.4–13.0
13.1–13.9

—
—
—

14.0–15.1
15.2–16.1
16.2–16.9

—
—
—

17.0–17.9
18.0–19.4
19.5–20.7

—
—
—

20.8–21.7
21.8–22.3
22.4–23.9

—
—
—

24.0–25.1
25.2–25.9
26.0–27.1

—
—
—

27.2–28.6
28.7–30.1
30.2–31.7

—
—
—

31.8–33.3
33.4–34.5
34.6–36.5

—
—
—

36.6–38.5
38.6–39.9
40.0–45.0

—
—
—

Thermal Unit Table 80
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

20.5–21.7
21.8–23.1
23.2–24.8

—
—
—

24.9–26.5
26.6–28.4
28.5–30.4

—
—
—

30.5–32.8
32.9–34.9
35.0–37.3

—
—
—

37.4–39.8
39.9–42.5
42.6–45.8

—
—
—

45.9–48.2
48.3–50.6
50.7–53.1

—
—
—

53.2–56.5
56.6–59.4
59.5–63.4

—
—
—

63.5–71.0
71.1–78.8
78.9–86.0

—
—
—

Thermal Unit Table 81
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

52.2–55.6
55.7–58.8
58.9–62.5

—
—
—

62.6–66.0
66.1–70.1
70.2–78.6

—
—
—

78.7–92.0
92.1–102
103–114

—
—
—

115–123
124–133

—
FB105.0

Thermal Unit Table 82
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

2.36–2.63
2.64–2.96
2.97–3.23

—
—
—

3.24–3.45
3.46–3.86
3.87–4.44

—
—
—

4.45–4.95
4.96–5.47
5.48–5.75

—
—
—

5.76–6.09
6.10–6.42
6.43–6.75

—
—
—

6.76–7.16
7.17–7.43
7.44–7.99

—
—
—

8.00–8.46
8.47–9.19
9.20–9.74

—
—
—

9.75–10.3
10.4–10.8
10.9–11.6

—
—
—

11.7–12.2
12.3–13.1
13.2–13.7

—
—
—

13.8–14.3
14.4–15.5
15.6–16.7

—
—
—

16.8–17.6
17.7–18.6
18.7–19.9

—
—
—

20.0–21.1
21.2–25.0

—
—

Thermal Unit Table 83
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

2.30–2.60
2.61–2.87
2.88–3.17

—
—
—

3.18–3.37
3.38–3.76
3.77–4.29

—
—
—

4.30–4.75
4.76–5.26
5.27–5.51

—
—
—

5.52–5.78
5.79–6.13
6.14–6.41

—
—
—

6.42–6.75
6.76–7.09
7.10–7.57

—
—
—

7.58–7.90
7.91–8.81
8.82–9.47

—
—
—

9.48–10.0
10.1–10.7
10.8–11.4

—
—
—

11.5–12.1
12.2–13.1
13.2–13.7

—
—
—

13.8–14.7
14.8–16.0
16.1–17.3

—
—
—

17.4–18.2
18.3–19.4
19.5–20.7

—
—
—

20.8–22.3
22.4–23.5
23.6–24.2

—
—
—

24.3–26.0

—

Thermal Unit Table 84
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

3.38–3.78
3.79–4.37
4.38–4.87

—
—
—

4.88–5.51
5.52–5.73
5.74–6.09

—
—
—

6.10–6.44
6.45–6.75
6.76–7.15

—
—
—

7.16–7.57
7.58–8.07
8.08–8.47

—
—
—

8.48–8.81
8.82–9.46
9.47–10.1

—
—
—

10.2–10.8
10.9–11.4
11.5–12.1

—
—
—

12.2–13.1
13.2–13.8
13.9–14.8

—
—
—

14.9–16.1
16.2–17.4
17.5–18.3

—
—
—

18.4–19.5
19.6–21.0
21.1–22.5

—
—
—

22.6–23.7
23.8–24.5
24.6–26.4

—
—
—

26.5–27.7
27.8–28.7
28.8–29.9

—
—
—

30.0–31.8
31.9–33.5
33.6–35.1

—
—
—

35.2–37.1
37.2–38.8
38.9–41.1

—
—
—

41.2–45.0

—

Thermal Unit Table 85
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

42.9–45.4
45.6–48.3
48.4–52.4

—
—
—

52.5–55.9
56.0–59.8
59.9–63.8

—
—
—

63.9–67.9
68.0–72.6
72.7–83.2

—
—
—

83.3–94.7
94.8–105
106–116

—
—
—

117–121
122–133

—
FB105.0

Thermal Unit Table 86
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.43–0.44
0.45–0.47
0.48–0.53

A .49
A .54
A .59

0.54–0.61
0.62–0.65
0.66–0.71

A .65
A .71
A .78

0.72–0.79
0.80–0.86
0.87–0.96

A .86
A .95
A 1.02

0.97–1.04
1.05–1.17
1.18–1.31

A 1.16
A 1.25
A 1.39

1.32–1.38
1.39–1.47
1.48–1.57

A 1.54
A 1.63
A 1.75

1.58–1.65
1.66–1.77
1.78–1.93

A 1.86
A 1.99
A 2.15

1.94–2.18
2.19–2.46
2.47–2.68

A 2.31
A 2.57
A 2.81

2.69–2.87
2.88–3.07
3.08–3.59

A 3.61
A 3.95
A 4.32

3.60–3.79
3.80–4.27
4.28–4.59

A 4.79
A 5.30
A 5.78

4.60–4.90
4.91–5.06
5.07–5.44

A 6.20
A 6.99
A 7.65

5.45–6.24
6.25–7.21
7.22–7.69

A 8.38
A 9.25
A 9.85

7.70–8.24
8.25–8.81
8.82–9.32

A 11.0
A 11.9
A 13.2

9.33–9.99
10.0–10.5
10.6–11.5

A 14.1
A 14.8
A 16.2

11.6–12.2
12.3–13.3
13.4–15.8

A 17.9
A 21.3
A 25.2

15.9–18.4
18.5–20.5
20.6–21.5

—
—
—

21.6–23.9
24.0–26.8
26.9–28.2

—
A 35.9
—

28.3–29.8
29.9–32.0

A 42.3
A 44.7

Thermal Unit Table 87
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.40–0.41
0.42–0.45
0.46–0.51

A .49
A .54
A .59

0.52–0.58
0.59–0.63
0.64–0.68

A .65
A .71
A .78

0.69–0.76
0.77–0.83
0.84–0.93

A .86
A .95
A 1.02

0.94–1.01
1.02–1.14
1.15–1.28

A 1.16
A 1.25
A 1.39

1.29–1.34
1.35–1.44
1.45–1.55

A 1.54
A 1.63
A 1.75

1.56–1.61
1.62–1.71
1.72–1.85

A 1.86
A 1.99
A 2.15

1.86–2.04
2.05–2.38
2.39–2.60

A 2.31
A 2.57
A 2.81

2.61–2.77
2.78–2.98
2.99–3.40

A 3.61
A 3.95
A 4.32

3.41–3.64
3.65–4.08
4.09–4.38

A 4.79
A 5.30
A 5.78

4.39–4.68
4.69–4.79
4.80–5.11

A 6.20
A 6.99
A 7.65

5.12–5.84
5.85–6.70
6.71–7.18

A 8.38
A 9.25
A 9.85

7.19–7.70
7.71–8.14
8.15–8.56

A 11.0
A 11.9
A 13.2

8.57–9.15
9.16–9.80
9.81–10.6

A 14.1
A 14.8
A 16.2

10.7–11.0

A 17.9

Thermal Unit Table 88
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.39–0.40
0.41–0.44
0.45–0.49

A .49
A .54
A .59

0.50–0.57
0.58–0.61
0.62–0.66

A .65
A .71
A .78

0.67–0.73
0.74–0.80
0.81–0.90

A .86
A .95
A 1.02

0.91–0.97
0.98–1.09
1.10–1.23

A 1.16
A 1.25
A 1.39

1.24–1.57
1.58–1.66
1.67–1.79

A 1.86
A 1.99
A 2.15

1.80–1.99
2.00–2.31
2.32–2.50

A 2.31
A 2.57
A 2.81

2.51–2.66
2.67–2.85
2.86–3.26

A 3.61
A 3.95
A 4.32

3.27–3.49
3.50–3.92
3.93–4.20

A 4.79
A 5.30
A 5.78

4.21–4.49
4.50–4.64
4.65–4.94

A 6.20
A 6.99
A 7.65

4.95–5.62
5.63–6.39
6.40–6.82

A 8.38
A 9.25
A 9.85

6.83–7.27
7.28–7.71
7.72–8.13

A 11.0
A 11.9
A 13.2

8.14–8.64
8.65–9.15
9.16–9.97

A 14.1
A 14.8
A 16.2

9.98–11.0

A 17.9

Thermal Unit Table 89
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

10.0–11.1
11.2–12.0
12.1–13.3

B17.5
B19.5
B22.0

13.4–15.1
15.2–17.1
17.2–18.6

B25.0
B28.0
B32.0

18.7–21.4
21.5–25.7
25.8–28.2

B36.0
B40.0
B45.0

28.3–29.7
29.8–31.2
31.3–32.1

B50.0
B56.0
B62.0

32.2–35.7
35.8–40.7
40.8–48.0

B70.0
B79.0
B88.0

Thermal Unit Table 90
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

4.88–5.13
5.14–5.85
5.86–6.67

A 7.65
A 8.38
A 9.25

6.68–7.09
7.10–7.62
7.63–8.04

A 9.85
A 11.0
A 11.9

8.05–8.46
8.47–9.11
9.12–9.69

A 13.2
A 14.1
A 14.8

9.70–10.5
10.6–11.6
11.7–12.3

A 16.2
A 17.9
A 21.3

12.4–14.6
14.7–16.8
16.9–17.9

A 25.2
—
—

18.0–18.7
18.8–19.8
19.9–21.4

—
—
A 35.9

21.5–22.8
22.9–23.8
23.9–26.0

—
A 42.3
A 44.7

Thermal Unit Table 91
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

4.80–5.07
5.08–5.73
5.74–6.48

A 7.65
A 8.38
A 9.25

6.49–6.90
6.91–7.25
7.26–7.81

A 9.85
A 11.0
A 11.9

7.82–8.29
8.30–8.81
8.82–9.40

A 13.2
A 14.1
A 14.8

9.41–10.0
10.1–11.1
11.2–11.7

A 16.2
A 17.9
A 21.3

11.8–13.7
13.8–16.0
16.1–16.9

A 25.2
—
—

17.0–17.7
17.8–18.7
18.8–20.2

—
—
A 35.9

20.3–21.4
21.5–22.5
22.6–23.8

—
A 42.3
A 44.7

23.9–26.0

A 48.0

Thermal Unit Table 92
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

10.5–11.7
11.8–12.5
12.6–14.0

B17.5
B19.5
B22.0

14.1–15.8
15.9–18.0
18.1–19.6

B25.0
B28.0
B32.0

19.7–23.5
23.6–27.4
27.5–30.5

B36.0
B40.0
B45.0

30.6–32.2
32.3–34.0
34.1–35.2

B50.0
B56.0
B62.0

35.3–39.5
39.6–43.9
44.0–48.0

B70.0
B79.0
B88.0

Thermal Unit Table 93
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

23.8–25.2
25.3–26.8
26.9–28.4

CC 36.4
CC 39.6
CC 42.7

28.5–30.3
30.4–32.1
32.2–34.2

CC 46.6
CC 50.1
CC 54.5

34.3–36.3
36.4–40.2
40.3–43.1

CC 59.4
CC 64.3
CC 68.5

43.2–45.9
46.0–49.2
49.3–51.6

CC 74.6
CC 81.5
CC 87.7

51.7–54.2
54.3–55.7
55.8–60.3

CC 94.0
—
CC 112.0

60.4–63.5
63.6–67.1
67.2–70.3

CC 121.0
CC 132.0
CC 143.0

70.4–74.1
74.2–78.3
78.4–83.3

CC 156.0
CC 167.0
CC 180.0

83.4–86.0

CC 196.0

Thermal Unit Table 94
(index and instructions:General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

25.8–27.5
27.6–29.4
29.5–31.4

CC 36.4
CC 39.6
CC 42.7

31.5–33.2
33.3–36.2
36.3–38.8

CC 46.6
CC 50.1
CC 54.5

38.9–41.6
41.7–44.7
44.8–47.9

CC 59.4
CC 64.3
CC 68.5

48.0–50.9
51.0–54.4
54.5–57.4

CC 74.6
CC 81.5
CC 87.7

57.5–60.6
60.7–63.9
64.0–68.4

CC 94.0
—
CC 112.0

68.5–73.4
73.5–78.7
78.8–83.8

CC 121.0
CC 132.0
CC 143.0

83.9–86.0

CC 156.0

Thermal Unit Table 95
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

42.5–44.7
44.8–47.9
48.0–51.2

CC 64.3
CC 68.5
CC 74.6

51.3–55.2
55.3–59.4
59.5–63.8

CC 81.5
CC 87.7
CC 94.0

63.9–68.8
68.9–73.8
73.9–77.7

—
CC 112.0
CC 121.0

77.8–82.5
82.6–86.6
86.7–91.9

CC 132.0
CC 143.0
CC 156.0

92.0–97.2
97.3–104
105–114

CC 167.0
CC 180.0
CC 196.0

115–123
124–150

CC 208.0
CC 219.0

Thermal Unit Table 96
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

49.5–52.0
52.1–54.8
54.9–58.7

CC 64.3
CC 68.5
CC 74.6

58.8–63.3
63.4–68.3
68.4–73.6

CC 81.5
CC 87.7
CC 94.0

73.7–79.4
79.5–85.5
85.6–89.7

—
CC 112.0
CC 121.0

89.8–94.8
94.9–99.9
100–105

CC 132.0
CC 143.0
CC 156.0

106–111
112–126
127–131

CC 167.0
CC 180.0
CC 196.0

132–141
142–150

CC 208.0
CC 219.0

Thermal Unit Table 103
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

40.8–45.5

B1.03

45.6–49.9

B1.16

51.0–57.5

B1.30

57.6–65.9

B1.45

66.0–73.1

B1.67

73.2–81.5

B1.88

81.6–92.3

B2.10

92.4–104

B2.40

105–114

B2.65

115–128

B3.00

129–140

B3.30

141–160

B3.70

161–193

B4.15

194–209

B4.85

210–232

B5.50

233–248

B6.25

249–266

B6.90

Thermal Unit Table 104
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

Max. Fuse Rating (A)

0.65–0.73

B1.03

1.50

0.74–0.82

B1.16

1.50

0.93–0.91

B1.30

1.60

0.92–1.04

B1.45

2.00

1.05–1.16

B1.67

2.00

1.17–1.26

B1.88

2.25

1.27–1.47

B2.10

2.60

1.48–1.65

B2.40

3.00

1.66–1.89

B2.65

3.50

1.90–2.17

B3.00

4.00

2.18–2.49

B3.30

4.50

2.50–2.79

B3.70

5.00

2.80–3.13

B4.15

5.60

3.14–3.36

B4.85

6.00

3.37–3.69

B5.50

7.00

3.70–3.92

B6.25

7.00

3.93–4.42

B6.90

8.00

4.43–4.99

B7.70

9.00

5.00–5.27

B8.20

10.0

5.28–5.84

B9.10

12.0

5.85–6.61

B10.2

12.0

6.62–7.42

B11.5

15.0

7.43–8.02

B12.8

15.0

8.03–8.53

B14.0

15.0

8.54–9.34

B15.5

17.5

9.35–10.1

B17.5

17.5

10.2–10.8

B19.5

20.0

10.9–12.0

B22.0

25.0

12.1–13.0

B25.0

25.0

13.1–15.5

B28.0

30.0
   

600 V Max.

250 V Max.

15.6–17.9

B32.0

30

30

18.0–21.4

B36.0

30

40

21.5–25.1

B40.0

30

40

25.2–27.0

B45.0

30

40

Thermal Unit Table 105
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

105–112

CC 74.6

113–122

CC 81.5

123–131

CC 87.7

132–142

CC 94.0

143–153

—

154–157

CC 112.0

158–169

CC 121.0

170–181

CC 132.0

182–195

CC 143.0

196–209

CC 156.0

210–227

CC 167.0

228–247

CC 180.0

248–266

CC 196.0

Thermal Unit Table 109
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

0.56–0.63
0.64–0.68
0.69–0.77
0.78–0.85

B0.81
B0.92
B1.03
B1.16

0.86–0.97
0.98–1.09
1.10–1.21
1.22–1.33
1.34–1.53

B1.30
B1.45
B1.67
B1.88
B2.10

1.54–1.73
1.74–1.89
1.90–2.17
2.18–2.53

B2.40
B2.65
B3.00
B3.30

2.54–2.87
2.88–3.22
3.23–3.49
3.50–3.85

B3.70
B4.15
B4.85
B5.50

3.86–4.11
4.12–4.70
4.71–5.21
5.22–5.53

B6.25
B6.90
B7.70
B8.20

5.54–6.17
6.18–7.02
7.03–7.92
7.93–8.61

B9.10
B10.2
B11.5
B12.8

8.62–9.17
9.18–10.0
10.1–11.0
11.1–11.8

B14.0
B15.5
B17.5
B19.5

11.9–13.5
13.6–15.3
15.4–17.4
17.5–19.4

B22.0
B25.0
B28.0
B32.0

19.5–22.2
22.3–25.1
25.2–27.0

B36.0
B40.0
B45.0

Thermal Unit Table 110
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

3.94–4.45
4.46–4.97
4.98–5.28
5.29–5.97

B6.90
B7.70
B8.20
B9.10

5.98–6.89
6.90–7.92
7.93–8.71
8.72–9.27

B10.2
B11.5
B12.8
B14.0

9.28–10.2
10.3–11.4
11.5–12.3
12.4–13.9

B15.5
B17.5
B19.5
B22.0

14.0–15.8
15.9–17.9
18.0–19.9
20.0–22.8

B25.0
B28.0
B32.0
B36.0

22.9–25.4
25.5–28.9
29.0–30.8
30.9–32.5

B40.0
B45.0
B50.0
B56.0

32.6–34.9
35.0–39.7
39.8–44.7

B62.0
B70.0
B79.0

Thermal Unit Table 111
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

14.0–14.9
15.0–16.2
16.3–17.2
17.3–18.7
18.8–20.2

—
CC 22.8
CC 24.6
CC 26.3
CC 28.8

20.3–21.7
21.8–23.3
23.4–25.2
25.3–27.1
27.2–29.4

CC 31.0
CC 33.3
CC 36.4
CC 39.6
CC 42.7

29.5–31.6
31.7–34.0
34.1–36.8
36.9–39.8
39.9–42.3

CC 46.6
CC 50.1
CC 54.5
CC 59.4
CC 64.3

42.4–45.7
45.8–49.2
49.3–52.8
52.9–56.8
56.9–61.2

CC 68.5
CC 74.6
CC 81.5
CC 87.7
CC 94.0

61.3–66.1
66.2–71.2
71.3–76.7
76.8–82.9
83.0–90.0

—
CC 112.0
CC 121.0
CC 132.0
CC 143.0

Thermal Unit Table 112
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

44.0–46.8
46.9–50.6
50.7–54.5
54.6–58.4
58.5–62.9

CC 64.3
CC 68.5
CC 74.6
CC 81.5
CC 87.7

63.0–67.7
67.8–72.9
73.0–78.1
78.2–83.9
84.0–91.1

CC 94.0
—
CC 112.0
CC 121.0
CC 132.0

91.2–97.5
97.6–104
105–113
114–133

CC 143.0
CC 156.0
CC 167.0
CC 180.0

Thermal Unit Table 113
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

88.2–95.1
95.2–101
102–111

DD 112.0
—
—

112–119
120–131
132–149

—
DD 150.0
DD 160.0

150–170
171–180
181–197

DD 185.0
DD 220.0
DD 240.0

198–204
205–213
214–237

DD 250.0
DD 265.0
DD 280.0

238–243
244–266

—
—

Thermal Unit Table 114
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

133–148
149–174
175–195

B1.30
B1.45
B1.67

196–219
220–239
240–271

B1.88
B2.10
B2.40

272–308
309–348
349–397

B2.65
B3.00
B3.30

398–429
430–495
496–520

B3.70
B4.15
B4.85

Thermal Unit Table 115
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

176–190

DD 112.0

191–203

—

203–223

—

224–239

—

240–253

DD 150.0

254–299

DD 160.0

300–341

DD 185.0

342–361

DD 220.0

362–395

DD 240.0

396–409

DD 250.0

410–427

DD 265.0

428–475

DD 289.0

476–487

—

488–532

—

Thermal Unit Table 116
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A))

Thermal Unit Number

81.6–91.1

B1.03

91.2–101

B1.16

102–115

B1.30

116–131

B1.45

132–146

B1.67

147–163

B1.88

164–184

B2.10

185–209

B2.40

210–229

B2.65

230–257

B3.00

258–281

B3.30

282–321

B3.70

322–387

B4.15

388–419

B4.35

420–465

B5.60

466–497

B6.25

496–532

B6.90

Thermal Unit Table 127
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1.12–1.27
1.28–1.37
1.38–1.55
1.56–1.71

B0.81
B0.92
B1.03
B1.16

1.72–1.95
1.96–2.19
2.20–2.43
2.44–2.67

B1.30
B1.45
B1.67
B1.88

2.68–3.07
3.08–3.47
3.48–3.79
3.80–4.35

B2.10
B2.40
B2.65
B3.00

4.36–5.07
5.08–5.75
5.76–6.45
6.46–6.99

B3.30
B3.70
B4.15
B4.85

7.00–7.71
7.72–8.23
8.24–9.41
9.42–10.43

B5.50
B6.25
B6.90
B7.70

10.44–11.07
11.08–12.35
12.36–14.05
14.06–15.85

B8.20
B9.10
B10.2
B11.5

15.86–17.23
17.24–18.35
18.36–20.1
20.2–22.1

B12.8
B14.0
B15.5
B17.5

22.2–23.7
23.8–27.1
27.2–30.7
30.8–34.9

B19.5
B22.0
B25.0
B28.0

35.0–38.9
39.0–44.5
44.6–50.3
50.4–54.0

B32.0
B36.0
B40.0
B45.0

Thermal Unit Table 128
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

7.88–8.91
8.92–9.95

B6.90
B7.70

9.96–10.57
10.58–11.95
11.96–13.79
13.80–15.85

B8.20
B9.10
B10.2
B11.5

15.86–17.43
17.44–18.55
18.56–20.5
20.6–22.9

B12.8
B14.0
B15.5
B17.5

23.0–24.7
24.8–27.9
28.0–31.7
31.8–35.9

B19.5
B22.0
B25.0
B28.0

36.0–39.9
40.0–45.7
45.8–50.9
51.0–61.7

B32.0
B36.0
B40.0
B45.0

61.8–65.1
65.2–69.9
70.0–79.5
79.6–89.4

B50.0
B56.0
B62.0
B70.0

Thermal Unit Table 129
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

28.0–29.9
30.0–32.5
32.6–34.5
34.6–37.5

—
CC 22.8
CC 24.6
CC 26.3

37.6–40.5
40.6–43.5
43.6–46.7
46.8–50.5

CC 28.8
CC 31.0
CC 33.3
CC 36.4

50.6–54.3
54.4–58.9
59.0–63.3
63.4–68.1

CC 39.6
CC 42.7
CC 46.6
CC 50.1

68.2–73.7
73.8–79.7
79.8–84.7
84.8–91.5

CC 54.5
CC 59.4
CC 64.5
CC 68.5

91.6–98.5
98.6–105.7
105.8–113.7
113.8–122.5

CC 74.6
CC 81.5
CC 87.7
CC 94.0

122.6–132.3
132.4–142.5
142.6–153.5
153.6–165.9

—
CC 112.0
CC 121.0
CC 132.0

166.0–180.0

CC 143.0

Thermal Unit Table 133
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

4.60–5.23
5.24–5.86
5.87–6.25

B6.90
B7.70
B8.20

6.26–7.09
7.10–8.25
8.26–9.49

B9.10
B10.2
B11.5

9.50–10.3
10.4–11.2
11.3–12.5

B12.8
B14.0
B15.5

12.6–13.8
13.9–15.0
15.1–16.9

B17.5
B19.5
B22.0

17.0–19.1
19.2–22.0
22.1–24.4

B25.0
B28.0
B32.0

24.5–28.0
28.1–31.8
31.9–36.0

B36.0
B40.0
B45.0

36.1–38.5
38.6–41.2
41.3–44.4

B50.0
B56.0
B62.0

44.5–50.3
50.4–56.9
57.0–59.0

B70.0
B79.0
B88.0

Thermal Unit Table 134
(index and instructions:General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

4.30–4.98
4.99–5.57
5.58–5.94

B6.90
B7.70
B8.20

5.95–6.71
6.72–7.79
7.80–8.93

B9.10
B10.2
B11.5

8.94–9.77
9.78–10.5
10.6–11.7

B12.8
B14.0
B15.5

11.8–13.0
13.1–14.0
14.1–15.0

B17.5
B19.5
B22.0

15.1–17.2
17.3–19.9
20.0–22.3

B25.0
B28.0
B32.0

22.4–26.0
26.1–29.8
29.9–34.0

B36.0
B40.0
B45.0

34.1–36.7
36.8–39.5
39.6–42.1

B50.0
B56.0
B62.0

42.2–46.6
46.7–51.5
51.6–54.0

B70.0
B79.0
B88.0

Thermal Unit Table 135
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T. U.

3 T. U.

0.77–0.88
0.89–1.02
1.03–1.19
1.20–1.37
1.38–1.62

0.85–0.95
0.96–1.09
1.10–1.21
1.22–1.35
1.36–1.56

B1.30
B1.45
B1.67
B1.88
B2.10

1.63–1.90
1.91–2.12
2.13–2.46
2.47–2.83
2.84–3.19

1.57–1.76
1.77–1.94
1.95–2.22
2.23–2.57
2.58–2.87

B2.40
B2.65
B3.00
B3.30
B3.70

3.20–3.61
3.62–3.89
3.90–4.32
4.33–4.57
4.58–5.19

2.88–3.21
3.22–3.50
3.51–3.79
3.80–4.04
4.05–4.53

B4.15
B4.85
B5.50
B6.25
B6.90

5.20–5.79
5.80–6.16
6.17–6.94
6.95–7.99
7.80–8.99

4.54–5.03
5.04–5.36
5.37–5.97
5.98–6.89
6.90–7.79

B7.70
B8.20
B9.10
B10.2
B11.5

9.00–9.98
9.99–10.6
10.7–11.6
11.7–13.1
13.2–14.2

7.80–8.53
8.54–9.09
9.10–9.99
10.0–10.9
11.0–11.7

B12.8
B14.0
B15.5
B17.5
B19.5

14.3–15.4
15.5–17.6
17.7–20.0

–

11.8–13.4
13.5–15.4
15.5–17.9
18.0–20.0

B22.0
B25.0
B28.0
B32.0

For Type 20 A Starter.
Select Thermal Units from above.

20.1–22.7
22.8–25.0

–

18.0–20.2
20.3–23.2
23.3–25.0

B32.0
B36.0
B40.0

For Type 25 A Starter.
Select any of the Thermal Units from above.

22.8–26.1
26.2–29.6
29.7–30.0

–

23.3–25.8
25.9–28.6

B36.0
B40.0
B45.0

For Type 30 A Starter.
Select any of the Thermal Units from above.

Thermal Unit Table 136
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T. U.

3 T. U.

0.98–1.09
1.10–1.24
1.25–1.41
1.42–1.59
1.60–1.81

0.88–0.98
0.99–1.13
1.14–1.26
1.27–1.38
1.39–1.62

B1.30
B1.45
B1.67
B1.88
B2.10

1.82–2.04
2.05–2.19
2.20–2.52
2.53–2.90
2.91–3.29

1.63–1.82
1.83–2.04
2.05–2.36
2.37–2.72
2.73–3.07

B2.40
B2.65
B3.00
B3.30
B3.70

3.30–3.69
3.70–3.99
4.00–4.42
4.43–4.69
4.70–5.37

3.08–3.44
3.45–3.69
3.70–4.11
4.12–4.34
4.35–4.89

B4.15
B4.85
B5.50
B6.25
B6.90

5.38–5.94
5.95–6.34
6.35–7.05
7.06–8.14
8.15–9.39

4.90–5.44
5.45–5.80
5.81–6.47
6.48–7.45
7.46–8.49

B7.70
B8.20
B9.10
B10.2
B11.5

9.40–10.3
10.4–11.1
11.2–12.2
12.3–13.5
13.6–14.7

8.50–9.29
9.30–9.99
10.0–10.8
10.9–12.1
12.2–13.1

B12.8
B14.0
B15.5
B17.5
B19.5

14.8–16.1
16.2–18.3
18.4–20.0

–

13.2–14.6
14.7–16.4
16.5–18.9
19.0–20.0

B22.0
B25.0
B28.0
B32.0

For Type DPSO12 & DPSO13, 20 A Starter.
Select Thermal Units from above.

18.4–20.9
21.0–23.6
23.7–25.0

–

–

19.0–20.9
21.0–24.1
24.2–25.0

B28.0
B32.0
B36.0
B40.0

For Type DPSO22 & DPSO23, 25 A Starter.
Select any of the Thermal Units from above.

23.7–27.2
27.3–30.0

–

24.2–27.2
27.3–30.0

B36.0
B40.0
B45.0

For Type DPSO33, 30 A Starter.
Select any of the Thermal Units from above.

Thermal Unit Table 145
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T.U.

3 T.U.

1.00–1.11
1.12–1.27
1.28–1.36
1.37–1.53

0.91–1.02
1.03–1.15
1.16–1.27
1.28–1.39

B1.30
B1.45
B1.67
B1.88

1.54–1.78
1.79–2.02
2.03–2.20
2.21–2.52

1.40–1.61
1.62–1.84
1.85–2.03
2.04–2.34

B2.10
B2.40
B2.65
B3.00

2.53–2.94
2.95–3.30
3.31–3.70
3.71–4.02

2.35–2.69
2.70–3.02
3.03–3.39
3.40–3.65

B3.30
B3.70
B4.15
B4.85

4.03–4.46
4.47–4.69
4.70–5.37
5.38–5.94

3.66–4.04
4.05–4.28
4.29–4.85
4.86–5.38

B5.50
B6.25
B6.90
B7.70

5.95–6.34
6.35–7.09
7.10–8.46
8.47–9.32

5.39–5.71
5.72–6.39
6.40–7.53
7.54–8.34

B8.20
B9.10
B10.2
B11.5

9.33–10.2
10.3–10.9
11.0–12.1
12.2–13.4

8.35–9.14
9.15–9.74
9.75–10.7
10.8–11.8

B12.8
B14.0
B15.5
B17.5

13.5–14.2
14.3–16.0
16.1–18.1
18.2–20.5

11.9–12.2
12.3–14.4
14.5–16.4
16.5–18.9

B19.5
B22.0
B25.0
B28.0

20.6–23.5
23.6–27.2
27.3–30.8
30.9–35.0

19.0–21.3
21.4–23.3
23.4–27.9
28.0–31.4

B32.0
B36.0
B40.0
B45.0

35.1–37.2
37.3–40.0

  

B50.0
B56.0

For Type DPSG42 & DPSG43, 40 A Starter.
Select any of the Thermal Units from above.

Thermal Unit Table 146
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T.U.

3 T.U.

3.90–4.22
4.23–4.49
4.50–5.14
5.15–5.78

3.60–3.89
3.90–4.15
4.16–4.76
4.77–5.30

B5.50
B6.25
B6.90
B7.70

5.79–6.23
6.24–7.03
7.04–8.23
8.24–9.31

5.31–5.70
5.71–6.46
6.47–7.65
7.66–8.55

B8.20
B9.10
B10.2
B11.5

9.32–10.1
10.2–10.7
10.8–11.9
12.0–13.1

8.56–9.36
9.37–9.9
10.0–10.9
11.0–12.0

B12.8
B14.0
B15.5
B17.5

13.2–13.9
14.0–15.9
16.0–18.0
18.1–20.8

12.1–12.8
12.9–14.2
14.3–16.0
16.1–18.5

B19.5
B22.0
B25.0
B28.0

20.9–23.1
23.2–26.9
27.0–31.4
31.5–36.0

18.6–21.2
21.3–24.9
25.0–28.0
28.1–31.7

B32.0
B36.0
B40.0
B45.0

36.1–38.8
38.9–41.7
41.8–46.3
46.4–50.0

31.8–34.6
34.7–37.4
37.5–40.0
40.1–46.4

B50.0
B56.0
B62.0
B70.0

—

46.5–50.0

B79.0

For Type DPSG52 & DPSG53, 50 A Starter.
Select any of the Thermal Units from above.

Thermal Unit Table 147
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T.U.

3 T.U.

1.04–1.14
1.15–1.29
1.30–1.43
1.44–1.56

0.93–1.04
1.05–1.18
1.19–1.33
1.34–1.43

B1.30
B1.45
B1.67
B1.88

1.57–1.79
1.80–2.03
2.04–2.26
2.27–2.51

1.44–1.67
1.68–1.88
1.89–2.09
2.10–2.41

B2.10
B2.40
B2.65
B3.00

2.52–3.03
3.04–3.31
3.32–3.73
3.74–4.07

2.42–2.79
2.80–3.15
3.16–3.54
3.55–3.75

B3.30
B3.70
B4.15
B4.85

4.08–4.49
4.50–4.76
4.77–5.44
5.45–6.04

3.76–4.22
4.23–4.46
4.47–5.09
5.10–5.61

B5.50
B5.25
B6.90
B7.70

6.05–6.46
6.47–7.24
7.25–8.64
8.65–9.59

5.62–5.99
6.00–6.70
6.71–8.19
8.20–8.79

B8.20
B9.10
B10.20
B11.5

9.60–10.5
10.6–11.3
11.4–12.6
12.7–13.9

8.80–9.66
9.67–10.2
10.3–11.4
11.5–12.6

B12.8
B14.0
B15.5
B17.5

14.0–14.9
15.0–16.5
16.6–18.9
19.0–22.2

12.7–13.5
13.6–15.1
15.2–17.2
17.3–19.9

B19.5
B22.0
B25.0
B28.0

22.3–24.6
24.7–28.6
28.7–32.4
32.5–37.3

20.0–22.5
22.6–26.2
26.3–29.9

B32.0
B36.0
B40.0
B45.0

37.4–39.5
39.6–40.0

  

B50.0
B56.0

For Type DPSO42 & DPSO43, 40 A Starter.
Select any of the Thermal Units from above.

Thermal Unit Table 148
(index and instructions: General to Mounting Thermal Units)

Motor FLC (A)

Thermal Unit Number

1 T.U.

3 T.U.

4.14–4.45
4.46–4.88
4.89–5.44
5.45–6.08

3.70–4.09
4.10–4.35
4.36–5.07
5.08–5.79

B5.50
B6.25
B6.90
B7.70

6.09–6.42
6.43–7.28
7.29–8.42
8.43–9.64

5.80–6.27
6.28–7.16
7.17–8.58
8.59–9.55

B8.20
B9.10
B10.2
B11.5

9.65–10.4
10.5–11.2
11.3–12.3
12.4–13.7

9.56–10.2
10.3–10.9
11.0–11.9
12.0–13.1

B12.8
B14.0
B15.5
B17.5

13.8–14.8
14.9–16.5
16.6–18.7
18.8–21.4

13.2–14.0
14.1–14.8
14.9–17.0
17.1–19.6

B19.5
B22.0
B25.0
B28.0

21.5–24.3
24.4–28.0
28.1–33.3
33.4–37.6

19.7–22.1
22.2–26.0
26.1–29.4
29.5–34.0

B32.0
B36.0
B40.0
B45.0

37.7–41.1
41.2–44.1
44.2–47.8
47.9–50.0

34.1–36.4
36.5–39.2
39.3–42.4
42.5–49.3

B50.0
B56.0
B62.0
B70.0

—

49.4–50.0

B79.0

For Type DPSO52 & DPSO53, 50 A Starter.
Select any of the Thermal Units from above.

Footnotes

  1. Series letters listed refer to the marking on the nameplate of the basic open­style starter. When the starter comes in a controller containing other devices, the controller may have a different series letter marked on the enclosure nameplate.
  2. Type A thermal units for full-load currents lower than those listed in this table are available. For complete information, consult Customer Care Center at 1-888-778-2733.
  3. This device will accept Type SB slow trip (Class 30) thermal units. For selection, see General.
  4. Small enclosure tables apply for Class 8904 non-combination and non-reversing starters. For combination and reversing Class 8904 starters, refer to the large enclosure selections, index above.
  5. Form Y81 must be specified to use quick trip (Class 10) or slow trip (Class 30) thermal units on Size 3 starters.
  6. Divide the motor FLC by 60, and use this quotient to select the appropriate thermal units.
  7. Use for autotransformer starters (fusible and circuit breaker).
  8. Refers to the Type number of the starter in the MCC, not the Type number of the MCC.
  9. Large enclosure tables apply for Class 8904 combination and reversing starters. For non-combination and non-reversing Class 8904 starters refer to small enclosure selections, Thermal Unit Selection.
  10. For Class 8630 starters, divide the delta-connected motor full-load current by 1.73, and use this quotient to select thermal units.
  11. For Class 8640 and Class 8940starters (MD, PD, ME, PE, MF, PF, MG and PG), use the full-load current of each motor winding as a basis for thermal unit selection—normally one-half the total motor current.
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