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A200 Series Heater Pack

Heater Pack 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 nameplate full load current.

When the full load current is unknown, selection may be made on the basis of average full load currents as shown HERE (Motor Rating Data)

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:

  • For 50°C, 55°C, 75°C rise motors and enclosed motors having a service factor of 1.0, select one size smaller coil.
  • Ambient temperature of controller lower than motor by 26°C (47°F), use one size smaller coil.
  • 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.

Type A and B Overload Relays, Sizes 3 and 4

Size Starter Ambient Compensated
Enclosed Starters		 Non-Compensating
Enclosed Starters		 Heater (One Heater
per Catalog Number)
Catalog Number
All Applications
Full Load Current of Motor Amps
For Size 4 Starters For Size 3 Starters 12.8-14.1 11.9-13.0 FH68
For Size 4 Starters For Size 3 Starters 14.2-15.5 13.1-14.3 FH69
For Size 4 Starters For Size 3 Starters 15.6-17.1 14.4-15.9 FH70
For Size 4 Starters For Size 3 Starters 17.2-18.9 16.0-17.4 FH71
For Size 4 Starters For Size 3 Starters 19.0-20.8 17.5-19.1 FH72
For Size 4 Starters For Size 3 Starters 20.9-22.9 19.2-21.1 FH73
For Size 4 Starters For Size 3 Starters 23.0-25.2 21.2-23.2 FH74
For Size 4 Starters For Size 3 Starters 25.3-27.8 23.3-25.6 FH75
For Size 4 Starters For Size 3 Starters 27.9-30.6 25.7-28.1 FH76
For Size 4 Starters For Size 3 Starters 30.7-33.5 28.2-30.8 FH77
For Size 4 Starters For Size 3 Starters 33.6-37.5 30.9-34.5 FH78
For Size 4 Starters For Size 3 Starters 37.6-41.5 34.6-38.2 FH79
For Size 4 Starters For Size 3 Starters 41.6-56.3 38.3-42.6 FH80
For Size 4 Starters For Size 3 Starters 46.4-50 42.7-46 FH81
For Size 4 Starters For Size 3 Starters 51-55 47-51 FH82
For Size 4 Starters For Size 3 Starters 56-61 52-56 FH83
For Size 4 Starters For Size 3 Starters 62-66 57-61 FH84
For Size 4 Starters For Size 3 Starters 67-73 62-67 FH85
For Size 4 Starters For Size 3 Starters 74-78 68-72 FH86
For Size 4 Starters For Size 3 Starters 79-84 73-77 FH87
For Size 4 Starters For Size 3 Starters 85-92 78-84 FH88
For Size 4 Starters - 93-101 85-91 FH89
For Size 4 Starters - 102-110 92-99 FH90
For Size 4 Starters - 111-122 100-110 FH91
For Size 4 Starters - 123-129 111-122 FH92
For Size 4 Starters - 130-133 123-128 FH93
For Size 4 Starters - - 129-133 FH94

Type A and B Overload Relays, Sizes 5 and 6 (1)

Compensated Overload Relay Heater
(One Heater per Part Number)
Open Starter Enclosed Starter
Full Load Current of Motor (Amps)
Size 5 (with 300/5 Current Transformers)
- - FH23
118-129 118-129 FH24
130-141 130-141 FH25
142-155 142-155 FH26
156-170 156-170 FH27
171-187 171-187 FH28
188-205 188-205 FH29
206-224 206-224 FH30
225-244 225-244 FH31
245-263 245-263 FH32
264-292 264-292 FH33
293-300 - FH34
Size 6 (with 600/5 Current Transformers)
- - FH23
236-259 236-259 FH24
260-283 260-283 FH25
284-310 284-310 FH26
311-340 311-340 FH27
341-374 341-374 FH28
375-411 375-411 FH29
412-448 412-448 FH30
449-489 449-489 FH31
490-527 490-527 FH32
528-585 528-540 FH33
586-600 - FH34

Notes:

(1) Size 7 and larger—advise full load current.

Type A and B Overload Relays, Sizes 0, 1 and 2

Size Starter Non-Compensated Open Starters and
Ambient Comp. Open and Enclosed Starters		 Non-Compensating
Enclosed Starters
Block Type Overload
Using Three Heaters		 Single-Pole Type
Overload		 Heater (One Heater
per Part Number)
Part Number		 Block Type Overload
Using Three Heaters		 Single-Pole Type
Overload		 Heater
Part Number
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.25-0.27 0.29-0.31 FH03 0.24-0.25 0.28-0.30 FH03
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.28-0.31 0.32-0.35 FH04 0.26-0.28 0.31-0.34 FH04
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.32-0.34 0.36-0.39 FH05 0.29-0.31 0.35-0.37 FH05
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.35-0.38 0.40-0.43 FH06 0.32-0.35 0.38-0.42 FH06
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.39-0.42 0.44-0.48 FH07 0.36-0.39 0.43-0.47 FH07
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.43-0.46 0.49-.053 FH08 0.40-0.43 0.48-0.52 FH08
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.47-0.50 0.54-0.58 FH09 0.44-0.47 0.53-0.56 FH09
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.51-0.55 0.59-0.64 FH10 0.48-0.51 0.57-0.63 FH10
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.56-0.62 0.65-0.71 FH11 0.52-0.57 0.64-0.70 FH11
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.63-0.68 0.72-0.79 FH12 0.58-0.63 0.71-0.77 FH12
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.69-0.75 0.80-0.87 FH13 0.64-0.70 0.78-0.85 FH13
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.76-0.83 0.88-0.96 FH14 0.71-0.77 0.86-0.94 FH14
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.84-0.91 0.97-1.06 FH15 0.78-0.85 0.95-1.03 FH15
For Size 2 Starters For Size 1 Starters For Size 0 Starters 0.92-1.00 1.07-1.16 FH16 0.86-0.93 1.04-1.13 FH16
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.01-1.11 1.17-1.28 FH17 0.94-1.03 1.14-1.25 FH17
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.12-1.22 1.29-1.41 FH18 1.04-1.13 1.26-1.38 FH18
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.23-1.34 1.42-1.55 FH19 1.14-1.25 1.39-1.52 FH19
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.35-1.47 1.56-1.71 FH20 1.26-1.37 1.53-1.67 FH20
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.48-1.62 1.72-1.87 FH21 1.38-1.51 1.68-1.83 FH21
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.63-1.78 1.88-2.06 FH22 1.52-1.65 1.84-2.01 FH22
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.79-1.95 2.07-2.26 FH23 1.66-1.81 2.02-2.21 FH23
For Size 2 Starters For Size 1 Starters For Size 0 Starters 1.96-2.15 2.27-2.48 FH24 1.82-1.99 2.22-2.43 FH24
For Size 2 Starters For Size 1 Starters For Size 0 Starters 2.16-2.35 2.49-2.72 FH25 2.00-2.19 2.44-2.66 FH25
For Size 2 Starters For Size 1 Starters For Size 0 Starters 2.36-2.58 2.73-2.99 FH26 2.20-2.39 2.67-2.92 FH26
For Size 2 Starters For Size 1 Starters For Size 0 Starters 2.59-2.83 3.00-3.28 FH27 2.40-2.63 2.93-3.21 FH27
For Size 2 Starters For Size 1 Starters For Size 0 Starters 2.84-3.11 3.29-3.60 FH28 2.64-2.89 3.22-3.53 FH28
For Size 2 Starters For Size 1 Starters For Size 0 Starters 3.12-3.42 3.61-3.95 FH29 2.90-3.17 3.54-3.87 FH29
For Size 2 Starters For Size 1 Starters For Size 0 Starters 3.43-3.73 3.96-4.31 FH30 3.18-3.47 3.88-4.22 FH30
For Size 2 Starters For Size 1 Starters For Size 0 Starters 3.74-4.07 4.32-4.71 FH31 3.48-3.79 4.23-4.61 FH31
For Size 2 Starters For Size 1 Starters For Size 0 Starters 4.08-4.39 4.72-5.14 FH32 3.80-4.11 4.62-4.9 FH32
For Size 2 Starters For Size 1 Starters For Size 0 Starters 4.40-4.87 5.15-5.6 FH33 4.12-4.55 5.0-5.5 FH33
For Size 2 Starters For Size 1 Starters For Size 0 Starters 4.88-5.3 5.7-6.2 FH34 4.56-5.0 5.6-6.0 FH34
For Size 2 Starters For Size 1 Starters For Size 0 Starters 5.4-5.9 6.3-6.8 FH35 5.1-5.5 6.1-6.6 FH35
For Size 2 Starters For Size 1 Starters For Size 0 Starters 6.0-6.4 6.9-7.5 FH36 5.6-5.9 6.7-7.3 FH36
For Size 2 Starters For Size 1 Starters For Size 0 Starters 6.5-7.1 7.6-8.2 FH37 6.0-6.6 7.4-8.0 FH37
For Size 2 Starters For Size 1 Starters For Size 0 Starters 7.2-.78 8.3-9.0 FH38 6.7-7.2 8.1-8.7 FH38
For Size 2 Starters For Size 1 Starters For Size 0 Starters 7.9-8.5 9.1-9.9 FH39 7.3-7.9 8.8-9.7 FH39
For Size 2 Starters For Size 1 Starters For Size 0 Starters 8.6-9.4 10.0-10.8 FH40 8.0-8.7 9.8-10.5 FH40
For Size 2 Starters For Size 1 Starters For Size 0 Starters 9.5-10.3 10.9-11.9 FH41 8.8-9.5 10.6-11.7 FH41
For Size 2 Starters For Size 1 Starters For Size 0 Starters 10.4-11.3 12.0-13.1 FH42 9.6-10.5 11.8-12.7 FH42
For Size 2 Starters For Size 1 Starters For Size 0 Starters 11.4-12.4 13.2-14.3 FH43 10.6-11.5 12.8-14.0 FH43
For Size 2 Starters For Size 1 Starters For Size 0 Starters 12.5-13.5 14.4-15.7 FH44 11.6-12.6 14.1-15.3 FH44
For Size 2 Starters For Size 1 Starters For Size 0 Starters 13.6-14.9 15.8-17.2 FH45 12.7-13.8 15.4-16.6 FH45
For Size 2 Starters For Size 1 Starters For Size 0 Starters 15.0-16.3 17.3-18.9 FH46 13.9-15.1 16.7-18.3 FH46
For Size 2 Starters For Size 1 Starters For Size 0 Starters 16.4-18.0 19.0-20.8 FH47 15.2-16.7 18.4-20.0 FH47
For Size 2 Starters For Size 1 Starters - 18.1-19.8 20.9-22.9 FH48 16.8-18.3 20.1-21.9 FH48
For Size 2 Starters For Size 1 Starters - 19.9-21.7 23.0-25.2 FH49 18.4-20.2 22.0-23.9 FH49
For Size 2 Starters For Size 1 Starters - 21.8-23.9 25.3-27.6 FH50 20.3-22.2 24.0-26.2 FH50
For Size 2 Starters For Size 1 Starters - 24.0-26.2 27.7-30.3 FH51 22.3-24.3 26.3-28.8 FH51
For Size 2 Starters - - 26.3-28.7 30.4-33.3 FH52 24.4-26.6 28.9-31.4 FH52
For Size 2 Starters - - 28.8-31.4 33.4-36.4 FH53 26.7-29.1 31.5-34.5 FH53
For Size 2 Starters - - 31.5-34.5 36.5-39.9 FH54 29.2-32.0 34.6-37.9 FH54
For Size 2 Starters - - 34.6-37.9 40.0-43.9 FH55 32.1-35.2 3.80-41.9 FH55
For Size 2 Starters - - 38.0-41.5 - FH56 35.3-38.5 42.0-45.0 FH56
For Size 2 Starters - - 41.6-45.0 - FH57 38.6-42.3 - FH57

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