Eaton DeviceNet Starter Network Adapter D77B-DSNAP Wartungshandbuch PDF herunterladen (Seite 19)

April 2008

PG03300001E For more information visit: www.eaton.com

16-19

Accessories & Modiﬁcation Codes

Accessories

A200 NEMA

Heater Selection

General Information on Heater Coil Selection

For maximum motor protection and compliance with Article

430-32 of the National Electrical Code, select heater coils

from the tables in this section on the basis of motor name-

plate full load current.

When the full load current is unknown, selection may be

made on the basis of average full load currents.

Caution — The average ratings could be high or low for a

speciﬁc motor and therefore selection on this basis always

involves risk. For fully reliable motor protection, select

heater coils on the basis of full load current rating as shown

on the motor nameplate.

Heater coils are rated to protect 40°C rise motors, and

open and drip-proof motors having a service factor of 1.15

where the motor and the controller are at the same ambient

temperature.

For other conditions:

1. For 50°C, 55°C, 75°C rise motors and enclosed motors

having a service factor of 1.0, select one size smaller

coil.

2. Ambient temperature of controller lower than motor by

26°C (47°F), use one size smaller coil.

3. Ambient temperature of controller higher than motor by

26°C (47°F), use one size larger coil.

Ultimate tripping current of heater coils is approximately

1.25 times the minimum current rating listed in the tables.

Table 16-60. Heater Selection — Type A and B Overload Relays,

Sizes 3 and 4

Table 16-61. Heater Selection — Type A and B Overload Relays,

Sizes 5 and 6

Note: Size 7 and Larger — Advise Full Load Current.

Size

Starter

Ambient

Compensated

Enclosed

Starters

Non-

compensating

Enclosed

Starters

Heater

(One Heater per

Catalog Number)

All Applications Catalog

Number

Full Load Current of Motor Amps

12.8 – 14.1

14.2 – 15.5

15.6 – 17.1

17.2 – 18.9

19.0 – 20.8

11.9 – 13.0

13.1 – 14.3

14.4 – 15.9

16.0 – 17.4

17.5 – 19.1

FH68

FH69

FH70

FH71

FH72

20.9 – 22.9

23.0 – 25.2

25.3 – 27.8

27.9 – 30.6

30.7 – 33.5

19.2 – 21.1

21.2 – 23.2

23.3 – 25.6

25.7 – 28.1

28.2 – 30.8

FH73

FH74

FH75

FH76

FH77

33.6 – 37.5

37.6 – 41.5

41.6 – 56.3

46.4 – 50

51 – 55

30.9 – 34.5

34.6 – 38.2

38.3 – 42.6

42.7 – 46

47 – 51

FH78

FH79

FH80

FH81

FH82

56 – 61

62 – 66

67 – 73

74 – 78

52 – 56

57 – 61

62 – 67

68 – 72

FH83

FH84

FH85

FH86

79 – 84

85 – 92

73 – 77

78 – 84

FH87

FH88

93 – 101 85 – 91 FH89

102 – 110

111 – 122

123 – 129

130 – 133

—

92 – 99

100 – 110

111 – 122

123 – 128

129 – 133

FH90

FH91

FH92

FH93

FH94

For Size 4 Starters

For Size 3 Starters

Compensated Overload Relay Heater (

One Heater per

Catalog Number)

Open Starter Enclosed Starter Catalog

Number

Full Load Current of Motor (Amps)

Size 5 (with 300/5 Current Transformers)

—

118 – 129

130 – 141

142 – 155

156 – 170

171 – 187

188 – 205

206 – 224

225 – 244

245 – 263

264 – 292

293 – 300

—

118 – 129

130 – 141

142 – 155

156 – 170

171 – 187

188 – 205

206 – 224

225 – 244

245 – 263

264 – 292

—

FH23

FH24

FH25

FH26

FH27

FH28

FH29

FH30

FH31

FH32

FH33

FH34

Size 6 (with 600/5 Current Transformers)

—

236 – 259

260 – 283

284 – 310

311 – 340

341 – 374

375 – 411

412 – 448

449 – 489

490 – 527

528 – 585

586 – 600

—