| MODEL | 24 Volt Coil | ||||
|---|---|---|---|---|---|
| Input Current (amps) |
at 68°F | at 160°F | |||
| Resistance (ohms) |
Volts | Resistance (ohms) |
Volts | ||
| KB-2.5 | 1.3 | 16.2 | 21 | 19.5 | 25 |
| KB-5 | 1.9 | 9.5 | 18 | 12 | 23 |
| POB-100 PFB-100 |
2.4 | 8.2 | 20 | 10 | 24 |
| POB-200 PFB-200 |
2.6 | 7.9 | 21 | 9.5 | 25 |
| POB-400 PFB-400 |
3.3 | 6.9 | 23 | 8.3 | 27 |
| PHB-50 | 0.8 | 25.5 | 21 | 30 | 25 |
| PHB-100 | 2 | 10 | 20 | 12 | 24 |
The coil resistance rises with temperature, so higher voltage is needed when the coil is hot, to maintain the same input current.
This is due to the nature of copper (wire in the coil) -- resistivity rises with temperature.