Fixed 40 °F Temperature Thermostat
The 42001-NEL thermostat is ideal for applications where freeze protection or low range temperature control is critical. In cold climates the thermostat switches heating devices that prevent pipes, valves, tanks and fittings from freezing.
This thermostat can be used in ambient-sensing applications by placing the sensor in the air or as a line-sensing thermostat by securing the bulb to the pipe or tank. It can be used as a single circuit control or as a pilot control for several circuits by switching a contact. Set point at factory is 40 degrees F (5C).
| Specifications | |
| Enclosure Rating | NEMA 4X |
| Entries | One ¾ inch NPT conduit hub |
| Set Point | 40 °F (5 °C) Close on decreasing temperature |
| Sensor exposure limits | -30 to 140 °F (-35 to 60 °C) |
| Housing exposure limit | -30 to 140 °F (-35 to 60 °C) |
| Enclosure material | Polycarbonate black |
| Switch | SPD, prewired snap action |
| Electrical rating | 22 amp@ 125/250/480 VAC |
| Accuracy | ±1% of full scale |
| Sensor & capillary type | Copper tin plated, Silicone oil filled bulb 3.12” (79mm) .39” (10mm) diameter 10’ (3.05m) long capillary |
| Connection | 14 AWG stranded copper wire, PVC |
| Approvals | CSA and UL Listed (Ordinary Areas) |
| Manufacturer | Nelson |
| Ordering Information: | |
| 4201-NEL | Thermostat, 40 Degrees |
