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Dayton Line Volt Mechanical Tstat: Heat or Cool, Stainless Steel, 30° to 110°F - Indoor Single-Stage Controls
DaytonIndoor Single-Stage Controls

Dayton Line Volt Mechanical Tstat: Heat or Cool, Stainless Steel, 30° to 110°F

The DAYTON Line Volt Mechanical Tstat (SKU 2NNR9) is an indoor single-stage control for heat or cool applications. It features a stainless steel construction, a hydraulic air coil, and a temperature range of 30° to…

SKU 3G-OTH-155546

Brand
Dayton
Item
Line Volt Mechanical Tstat: Heat or Cool, Stainless Steel, 30° to 110°F
Category
Indoor Single-Stage Controls
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Technical Specifications

Dayton
Manufacturer Part Number
2NNR9
Type
Stainless Steel, 30° to 110°F, 3.5°F
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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DAYTON Line Volt Mechanical Tstat (SKU 2NNR9) is an indoor single-stage control for heat or cool applications. It features a stainless steel construction, a hydraulic air coil, and a temperature range of 30° to 110°F with a 3.5°F differential. The thermostat operates on 120 to 270V AC and uses an SPDT, Open/Close on Rise switch action.

Frequently Asked Questions

What is the DAYTON Line Volt Mechanical Tstat 2NNR9 used for?

The DAYTON Line Volt Mechanical Tstat 2NNR9 is an indoor single-stage control for heat or cool applications. It is commonly used in commercial and industrial HVAC systems to regulate temperature in spaces such as warehouses, workshops, and plant floors, where reliable line-voltage switching is required.

What are the specifications of the DAYTON 2NNR9 thermostat?

The DAYTON 2NNR9 thermostat operates on 120 to 270V AC with an SPDT, Open/Close on Rise switch action. It has a temperature range of 30° to 110°F and a 3.5°F differential. The unit features a stainless steel construction and a hydraulic air coil sensor for accurate temperature sensing.

Where to buy the DAYTON 2NNR9 thermostat worldwide?

You can source the DAYTON 2NNR9 thermostat through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this Dayton thermostat.

How to install the DAYTON Line Volt Mechanical Tstat 2NNR9?

Install the DAYTON 2NNR9 thermostat by mounting it on a wall or junction box in a dry indoor location. Connect the line-voltage supply (120 to 270V AC) to the SPDT terminals per the wiring diagram. Ensure the hydraulic air coil is properly positioned for accurate temperature sensing. Always follow local electrical codes and disconnect power before installation.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton indoor single-stage controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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DAYTON Line Volt Mechanical Tstat: Heat or Cool, Stainless Steel, 30° to 110°F, 3.5°F (MPN 2NNT1). Key specifications — attr400419: 120 to 270V AC; attr400424: (2) SPDT, Open/Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Stainless Steel.
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DAYTON Line Volt Mechanical Tstat: Heat or Cool, Stainless Steel, 30° to 110°F, 3.5°F (MPN 2NNT1). Key specifications — attr400419: 120 to 270V AC; attr400424: (2) SPDT, Open/Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Stainless Steel.
DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNR5). Key specifications — Switch Type/Action: SPST, Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 5 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Steel.
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DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNR5). Key specifications — Switch Type/Action: SPST, Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 5 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Steel.
DAYTON Line Volt Mechanical Tstat: Heat or Cool, Steel, 30° to 110°F, 3.5°F, Hydraulic Air Coil (MPN 1UHH3). Key specifications — attr400419: 120 to 270V AC; attr400424: (2) SPDT, Open/Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Steel.
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DAYTON Line Volt Mechanical Tstat: Heat or Cool, Steel, 30° to 110°F, 3.5°F, Hydraulic Air Coil (MPN 1UHH3). Key specifications — attr400419: 120 to 270V AC; attr400424: (2) SPDT, Open/Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Steel.
DAYTON Line Volt Mechanical Tstat: Cool Only, Steel, -10° to 100°F, 2°F, Bi-Metal, 120 to 277V AC (MPN 2E869). Key specifications — attr400419: 120 to 277V AC; attr400424: SPST, Close on Rise; attr400415: -10° to 100°F; attr400417: 2°F; attr400418: Bi-Metal; attr400408: Cool Only; attr408361: DAYTON; attr400410: Steel.
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DAYTON Line Volt Mechanical Tstat: Cool Only, Steel, -10° to 100°F, 2°F, Bi-Metal, 120 to 277V AC (MPN 2E869). Key specifications — attr400419: 120 to 277V AC; attr400424: SPST, Close on Rise; attr400415: -10° to 100°F; attr400417: 2°F; attr400418: Bi-Metal; attr400408: Cool Only; attr408361: DAYTON; attr400410: Steel.

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DAYTON Line Volt Mechanical Tstat: Heat or Cool, Steel, 30° to 110°F, 3.5°F, Hydraulic Air Coil (MPN 1UHH2). Key specifications — attr400419: 24 to 600V AC; attr400424: SPDT, Open/Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Steel.
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DAYTON Line Volt Mechanical Tstat: Heat or Cool, Steel, 30° to 110°F, 3.5°F, Hydraulic Air Coil (MPN 1UHH2). Key specifications — attr400419: 24 to 600V AC; attr400424: SPDT, Open/Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Steel.
DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNR7). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 8 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Steel.
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DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNR7). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 8 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Steel.
DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Stainless Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNT4). Key specifications — Switch Type/Action: SPST, Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 5 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Stainless Steel.
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DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Stainless Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNT4). Key specifications — Switch Type/Action: SPST, Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 5 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Stainless Steel.
DAYTON Line Volt Mechanical Tstat: Cool Only, Stainless Steel, 30° to 110°F, 3.5°F, 120 to 270V AC (MPN 2NNT2). Key specifications — attr400419: 120 to 270V AC; attr400424: SPST, Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Cool Only; attr408361: DAYTON; attr400410: Stainless Steel.
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DAYTON Line Volt Mechanical Tstat: Cool Only, Stainless Steel, 30° to 110°F, 3.5°F, 120 to 270V AC (MPN 2NNT2). Key specifications — attr400419: 120 to 270V AC; attr400424: SPST, Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Cool Only; attr408361: DAYTON; attr400410: Stainless Steel.
DAYTON Line Volt Mechanical Tstat: 0° to 120°F, Plastic, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNR6). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 0° to 120°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 5 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Plastic.
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DAYTON Line Volt Mechanical Tstat: 0° to 120°F, Plastic, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNR6). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 0° to 120°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 5 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Plastic.
DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Stainless Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNT3). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 8 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Stainless Steel.
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DAYTON Line Volt Mechanical Tstat: -30° to 90°F, Stainless Steel, Fixed, 3°F, 120V/240V/277V AC Volt (MPN 2NNT3). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: -30° to 90°F; Temperature Differential: 3°F; Voltage: 120V/240V/277V AC; Capillary Length/Bulb Diameter: 8 ft Capillary, 5 in x 1/4 in Bulb; Brand: DAYTON; Differential Type: Fixed; Enclosure Material: Stainless Steel.
DAYTON Line Volt Mechanical Tstat: Heat or Cool, Steel, -10° to 100°F, 2°F, Bi-Metal, 120 to 277V AC (MPN 2E816). Key specifications — attr400419: 120 to 277V AC; attr400424: SPDT, Open/Close on Rise; attr400415: -10° to 100°F; attr400417: 2°F; attr400418: Bi-Metal; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Steel.
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DAYTON Line Volt Mechanical Tstat: Heat or Cool, Steel, -10° to 100°F, 2°F, Bi-Metal, 120 to 277V AC (MPN 2E816). Key specifications — attr400419: 120 to 277V AC; attr400424: SPDT, Open/Close on Rise; attr400415: -10° to 100°F; attr400417: 2°F; attr400418: Bi-Metal; attr400408: Heat or Cool; attr408361: DAYTON; attr400410: Steel.
DAYTON Line Volt Mechanical Tstat: Cool Only, Steel, 30° to 110°F, 3.5°F, Hydraulic Air Coil (MPN 1UHH4). Key specifications — attr400419: 120 to 270V AC; attr400424: SPST, Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Cool Only; attr408361: DAYTON; attr400410: Steel.
Dayton
DAYTON Line Volt Mechanical Tstat: Cool Only, Steel, 30° to 110°F, 3.5°F, Hydraulic Air Coil (MPN 1UHH4). Key specifications — attr400419: 120 to 270V AC; attr400424: SPST, Close on Rise; attr400415: 30° to 110°F; attr400417: 3.5°F; attr400418: Hydraulic Air Coil; attr400408: Cool Only; attr408361: DAYTON; attr400410: Steel.