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 | — | — | — | — | — |
