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White rectangular thermostat with temperature dial and mounting tabs

Dayton

Dayton 2E816 Line Volt Mechanical Thermostat

SKU CH-DJCT-4RP5V

A line-voltage mechanical thermostat with a -10 °F to 100 °F control range, SPDT switch action, and 15 A at 120 VAC or 10 A at 240 VAC ratings

  • Size2.9
  • Product typeHVACR and Appliance Controls
  • Controls heating and cooling with SPDT switching action
  • Operates from -10 °F to 100 °F across 120–277 VAC circuits
  • Handles 15 A at 120 VAC and 10 A at 240 VAC
  • 6–8 °F differential prevents rapid cycling
  • Mechanical line-voltage design requires no programming

Line-voltage mechanical thermostat

The Dayton 2E816 is a single-switch mechanical thermostat rated for 120 to 277 VAC line voltage. It provides heating and cooling control with a switch action that opens or closes on temperature rise. The unit suits HVACR and appliance applications requiring direct line-voltage switching without a separate low-voltage transformer.

SPDT switch and fixed differential

The SPDT contact handles 15 A at 120 VAC and 10 A at 240 VAC, allowing direct control of compatible loads. A fixed differential of 6 to 8 degrees Fahrenheit prevents rapid cycling. No remote sensing bulb is included and the thermostat is not programmable, so set-point adjustments are made locally on the device.

Control range -10 to 100 degrees F

The adjustable range spans -10 to 100 degrees Fahrenheit, covering low-temperature protection and standard comfort heating or cooling. The 6 to 8 degree differential provides a buffer but limits precision for processes needing tighter tolerance. It is not suited for applications requiring remote sensing, multi-stage control or programmable schedules.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $46.99
Pricier than about 72% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameDAYTON
Product typeHVACR and Appliance Controls
Size & build
Size2.9

Questions about this item

Will the SPDT switch mechanism need replacement after extended use?

The mechanical thermostat uses a single SPDT switch rated for 15 A at 120 VAC and 10 A at 240 VAC; mechanical contacts can wear over time and may require thermostat replacement if switching reliability declines.

What is the first limit reached when the thermostat operates continuously at full load?

The full-load current rating of 15 A at 120 VAC or 10 A at 240 VAC is the primary limit; exceeding either amperage risks contact damage or overheating.

How much heat does the thermostat generate when controlling a load all day?

The device itself produces minimal heat; its 6 to 8 °F differential and mechanical operation mean negligible internal dissipation compared with the connected heating or cooling load.

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