Overload Relay Heater Tables - Irrigation Pump Panels & Heavy Duty Starters


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Overload Relay Heater Tables

Irrigation Pump Panels & Heavy Duty Starters

Heaters provide a maximum trip rating of 125% of minimum motor amperes for 40°C motors (service factor 1.15). For other motors (service factor 1.0), select the next lower listed heater catalog number within the designated table which provides a maximum trip rating of approximately 115%.

Overload relays do not provide against short circuits. To ensure proper coordination with short circuit protective device, select heaters from the information packaged with the controls device.




Technical Specifications
Model Trip Class Full Load Amps
Size 00, 0, 1
Full Load Amps
Size 1 3/4
Full Load Amps
Size 2, 2 1/2
Full Load Amps
Size 3, 3 1/2
Full Load Amps
Size 4
E6 Class 20 0.38-0.40
E7 Class 20 0.41-0.43
E8 Class 20 0.44-0.48
E9 Class 20 0.49-0.53
E11 Class 20 0.54-0.57
E12 Class 20 0.58-0.62
E13 Class 20 0.63-0.66
E14 Class 20 0.67-0.72
E16 Class 20 0.73-0.80
E17 Class 20 0.81-0.85
E18 Class 20 0.86-0.92
E19 Class 20 0.93-0.99
E23 Class 20 1.00-1.08
E24 Class 20 1.09-1.23
E26 Class 20 1.24-1.37
E27 Class 20 1.38-1.54
E28 Class 20 1.55-1.69
E29 Class 20 1.70-1.80
E31 Class 20 1.81-1.94
E32 Class 20 1.95-2.07
E33 Class 20 2.08-2.26
E34 Class 20 2.27-2.54 2.27-2.54
E36 Class 20 2.55-2.69 2.55-2.69
E37 Class 20 2.70-2.88 2.70-2.88
E38 Class 20 2.89-3.14 2.89-3.14
E39 Class 20 3.15-3.40 3.15-3.41
E41 Class 20 3.41-3.81 3.41-3.81
E42 Class 20 3.82-4.26 3.82-4.25
E44 Class 20 4.27-4.62 4.26-4.62
E46 Class 20 4.63-5.09 4.63-5.09
E47 Class 20 5.10-5.61 5.10-5.61
E48 Class 20 5.62-5.91 5.62-5.91
E49 Class 20 5.92-6.15 5.92-6.15
E50 Class 20 6.16-6.70 6.16-6.70
E51 Class 20 6.71-7.54 6.71-7.54
E52 Class 20 7.55-8.29 7.55-8.29
E53 Class 20 8.30-8.99 8.30-8.99
E54 Class 20 9.00-9.85 9.00-9.85
E55 Class 20 9.86-10.4 9.86-10.4
E56 Class 20 10.5-12.0 10.5-12.0 10.5-12.0
E57 Class 20 12.1-13.6 12.1-13.6 12.1-13.6
E60 Class 20 13.7-15.6 13.7-15.6 13.7-15.6
E61 Class 20 15.7-17.0 15.7-17.0 15.7-17.1
E62 Class 20 17.1-18.4 17.1-19.4 17.2-19.4
E65 Class 20 18.5-19.4 19.5-20.9 19.5-20.9
E66 Class 20 19.5-21.3 21.0-22.2 21.0-22.2
E67 Class 20 21.4-24.4 22.3-25.3 22.3-25.3
E69 Class 20 24.4-25.9 25.4-26.9 25.4-26.9 30.0-33.5
E70 Class 20 26.0-27.0 27.0-30.2 27.0-30.2 33.6-36.4
E71 Class 20 36.5-39.6
E72 Class 20 30.3-33.3 30.3-33.3
E73 Class 20 33.4-36.0 33.4-35.3 39.7-43.6
E73A Class 20 43.7-46.5
E74 Class 20 35.4-41.5 46.5-51.6
E76 Class 20 41.6-45.0 51.7-54.4
E77 Class 20 45.1-52.3 54.5-58.0
E78 Class 20 52.4-55.7 58.1-63.0
E79 Class 20 55.8-60.0 63.1-67.7
E80 Class 20 67.8-72.4
E88 Class 20
E89 Class 20
E91 Class 20
E92 Class 20
E93 Class 20
E94 Class 20 72.5-80.0 72.5-80.0
E96 Class 20 80.1-88.1 77.8-85.9
E97 Class 20 88.2-91.5 86.0-91.9
E98 Class 20 91.6-96.8 92.0-96.7
E99 Class 20 96.9-99.0 96.8-105
E101 Class 20 99.1-108.0
E102 Class 20
E103 Class 20 106-115
E104 Class 20 116-130
K21 Class 10 1.52-1.65 1.52-1.65
K22 Class 10 1.66-1.79 1.66-1.79
K23 Class 10 1.80-1.94 1.80-1.94
K24 Class 10 1.95-2.15 1.95-2.15
K26 Class 10 2.16-2.37 2.16-2.37
K27 Class 10 2.38-2.56 2.38-2.56
K28 Class 10 2.57-2.87 2.57-2.87
K29 Class 10 2.88-3.13 2.88-3.13
K31 Class 10 3.14-3.37 3.14-3.37
K32 Class 10 3.38-3.72 3.38-3.72
K33 Class 10 3.73-4.00 3.73-4.00
K34 Class 10 4.01-4.35 4.01-4.35
K36 Class 10 4.36-4.99 4.36-4.99
K37 Class 10 5.00-5.38 5.00-5.38
K39 Class 10 5.39-5.79 5.39-5.79
K41 Class 10 5.80-6.43 5.80-6.43
K42 Class 10 6.44-6.83 6.44-6.83
K43 Class 10 6.84-7.83 6.84-7.83
K49 Class 10 7.84-8.23 7.84-8.23
K50 Class 10 8.24-9.59 8.24-9.59
K52 Class 10 9.60-9.90 9.60-9.90
K53 Class 10 10.0-10.7 10.0-10.7
K54 Class 10 10.8-11.6 10.8-11.6 12.1-12.7
K55 Class 10 11.7-12.3 11.7-12.3 12.8-13.5
K56 Class 10 12.4-13.4 12.4-13.4 13.6-14.6
K57 Class 10 13.5-14.2 13.5-14.2 14.7-15.9
K58 Class 10 14.3-15.1 14.3-15.1 16.0-16.9
K60 Class 10 15.2-17.5 15.2-17.5 17.0-18.2
K61 Class 10 17.6-18.7 17.6-18.7 18.3-19.5
K62 Class 10 18.8-20.0 18.8-20.0 19.6-20.9
K63 Class 10 20.1-21.5 20.1-21.5 21.0-23.1
K64 Class 10 21.6-23.9 21.6-23.9 23.2-25.4
K67 Class 10 24.0-25.8 24.0-25.8 25.5-27.9
K68 Class 10 25.9-29.5
K69 Class 10 28.0-30.5
K70 Class 10 29.6-32.7 30.6-33.5 36.8-40.0
K72 Class 10 32.8-36.0 33.6-37.2 40.1-42.4
K73 Class 10 37.3-40.7 42.5-46.3
K74 Class 10 40.8-43.0 46.4-49.6
K75 Class 10 43.1-47.9 49.7-52.3 49.7-52.3
K76 Class 10 48.0-52.7 52.4-57.5 52.4-57.5
K77 Class 10 52.8-58.3 57.6-63.9 57.6-63.0
K78 Class 10 58.4-60.0 64.0-67.9 63.1-68.1
K83 Class 10 68.0-74.3 68.2-74.3
K85 Class 10 74.4-77.9 74.4-79.9
K86 Class 10 78.0-83.1 80.0-87.4
K87 Class 10 83.2-91.4 87.5-90.0
K88 Class 10 91.5-99.9 90.1-100.0
K89 Class 10 100.0-108.0 100.1-108.0
K90 Class 10 108.1-119.0
K92 Class 10 119.1-130.0
K94 Class 10
K96 Class 10

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