Maximum Voltage Maximum Voltage |
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For Use With For Use With |
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Temperature Setting Temperature Setting |
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Thermostat Type Thermostat Type |
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Overall Depth Overall Depth |
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Overall Height Overall Height |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Switch Starting Position Switch Starting Position |
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For System Efficiency For System Efficiency |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Line-Voltage Thermostats


Regulate line-voltage HVAC systems.
Thermostats for heaters mount to a surface-mount outlet box.
Overall | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Mounting Fasteners Included | Specifications Met | Each | |
For Air Conditioners and Heaters | ||||||||||
24V AC-277V AC | 22 | 40° to 90° | SPDT | 4 3/4" | 3" | 1 3/8" | Yes | UL Listed | 0000000 | 0000000 |
For Heaters | ||||||||||
120V AC-277V AC | 22 | 50° to 90° | SPST | 4 1/2" | 2 3/4" | 1 1/2" | No | ETL Listed | 00000000 | 00000 |
120V AC-277V AC | 22 | 50° to 90° | DPST | 4 1/2" | 2 3/4" | 1 1/2" | No | ETL Listed | 00000000 | 00000 |
Multi-Speed Line-Voltage Thermostats

Control one- and two-speed line-voltage HVAC systems. Set the thermostat to activate the device’s second speed when the temperature surpasses the setting for the first speed by 3.6° F to 9° F.
Overall | |||||||||||||
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Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Temp. Differential, °F | For Use Outdoors | Mounting Fasteners Included | Environmental Rating | Specifications Met | Each | |
For Air Conditioners and Heaters | |||||||||||||
24V AC-250V AC | 15 | 32° to 140° | SPDT | 6" | 2 3/4" | 3 3/8" | 3.6° to 9° | Yes | Yes | IP65; NEMA 4 | CE Marked | 0000000 | 0000000 |
Line-Voltage Thermostats with Thermowell

Commonly used with line-voltage hydronic heaters, this thermostat senses the temperature of liquids. The thermowell protects the sensor.
Overall | Thermowell | ||||||||||
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Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Thread Type | Pipe Size | Specifications Met | Each | |
For Air Conditioners and Heaters | |||||||||||
120V AC-240V AC | 10 | 100° to 240° | SPDT | 4 1/2" | 2 1/4" | 1 7/8" | NPT | 1/2 | UL Listed | 000000 | 0000000 |
Plug-In Line-Voltage Thermostats

Plug in the thermostat, then plug your line-voltage heater into the socket on the thermostat's plug. Use the included metal hanger for mounting.
Overall | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Voltage | Current, A | Temp. Setting, °F | Switch Type | Cord Lg., ft. | Plug Type | Ht. | Wd. | Dp. | Specifications Met | Each | |
For Heaters | |||||||||||
120V AC | 13 | 40° to 90° | SPST | 6 | Three Prong | 5 1/2" | 2 1/8" | 2 5/8" | UL Listed | 000000 | 0000000 |
Remote-Sensor Line-Voltage Thermostats


Place sensor in enclosures or different rooms than the rest of the thermostat to control temperature from outside the space. Thermostats work with line-voltage HVAC systems.
Overall | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Sensor Cord Lg., ft. | Mounting Fasteners Included | Mounting Hole Dia. | Specifications Met | Each | ||
For Air Conditioners and Heaters | |||||||||||||
A | 120V AC-277V AC | 22 | -30° to 100° | SPDT | 5" | 2 1/4" | 1 5/8" | 8 | No | 1/8" | UL Listed | 0000000 | 0000000 |
B | 120V AC-277V AC | 22 | 40° to 110° | SPDT | 5 1/2" | 2 1/8" | 2 5/8" | 2 | No | 1/8" | UL Listed | 0000000 | 000000 |
DIN-Rail Mount Remote-Sensor Line-Voltage Thermostats


Place sensor in enclosures or different rooms than the rest of the thermostat to control temperature from outside the space. Thermostat works with line-voltage HVAC systems.
Remote-Sensor Line-Voltage Thermostats with Thermowell

Commonly used with line-voltage hydronic heaters, this thermostat senses the temperature of liquids at a distance using the remote sensor. The thermowell protects the sensor.
Overall | Thermowell | |||||||||||||
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Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Sensor Cord Lg., ft. | Thread Type | Pipe Size | Mounting Fasteners Included | Mounting Hole Dia. | Specifications Met | Each | |
For Air Conditioners and Heaters | ||||||||||||||
120V AC-240V AC | 10 | 100° to 240° | SPDT | 4 1/2" | 2 1/4" | 1 7/8" | 8 | NPT | 1/2 | No | 1/4" | UL Listed | 000000 | 0000000 |
Hazardous Location Line-Voltage Thermostats

Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present. Thermostats are rated Class I, Divisions 1 and 2, Groups C and D; and Class II, Divisions 1 and 2, Groups E, F, and G.
Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Mounting Fasteners Included | Mounting Hole Dia. | Specifications Met | Environmental Rating | Each | |
For Air Conditioners and Heaters | ||||||||||||
24V AC-277V AC | 22 | 50° to 90° | SPDT | 5 3/4" | 6 3/8" | 5 5/8" | No | 1/4" | UL Listed, CSA Certified | NEC Class I Divisions 1, 2 Groups C, D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7 | 0000000 | 0000000 |
24V AC-277V AC | 22 | 50° to 90° | DPDT | 5 3/4" | 6 3/8" | 5 5/8" | No | 1/4" | UL Listed, CSA Certified | NEC Class I Divisions 1, 2 Groups C, D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7 | 0000000 | 000000 |
Remote-Sensor Hazardous Location Line-Voltage Thermostats

Place sensor in enclosures or different rooms than the rest of the thermostat to control temperature from outside the space. Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present. Thermostats are rated Class I, Divisions 1 and 2, Group D; and Class II, Divisions 1 and 2, Groups E, F, and G.
Overall | |||||||||||||
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Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | Sensor Cord Lg., ft. | Mounting Fasteners Included | Mounting Hole Dia. | Specifications Met | Environmental Rating | Each | |
For Air Conditioners and Heaters | |||||||||||||
120V AC-277V AC | 22 | 20° to 80° | SPDT | 5 7/8" | 3" | 3 1/4" | 6 | No | 3/8" | UL Listed, CSA Certified | NEC Class I Divisions 1, 2 Group D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7 NEMA 9 | 0000000 | 0000000 |
Washdown Line-Voltage Thermostats

These thermostats are rated NEMA 4X for protection from dirt, washdowns, and corrosion. Use to regulate line-voltage HVAC systems.
Overall | |||||||||||||
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Voltage | Current, A | Temp. Setting, °F | Switch Type | Ht. | Wd. | Dp. | For Use Outdoors | Mounting Fasteners Included | Mounting Hole Dia. | Specifications Met | Environmental Rating | Each | |
For Air Conditioners and Heaters | |||||||||||||
120V AC-277V AC | 22 | 40° to 100° | SPDT | 6 7/8" | 3 1/8" | 4" | Yes | No | 5/32" | ETL Listed | NEMA 4X | 0000000 | 0000000 |
120V AC-277V AC | 22 | 40° to 100° | DPDT | 6 7/8" | 3 1/8" | 4" | Yes | No | 5/32" | ETL Listed | NEMA 4X | 0000000 | 000000 |
Low-Voltage Thermostats


These thermostats work with low-voltage HVAC systems that have only one speed.
Style A thermostats mount vertically or horizontally.
For System | Overall | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Type | Efficiency | Voltage | Current, A | Temp. Setting, °F | Dia. | Ht. | Wd. | Dp. | Mounting Fasteners Included | Each | ||
For Air Conditioners | ||||||||||||
A | Electric | Single Stage | 24V AC | 1 | 50° to 90° | __ | 5" | 3 1/4" | 1 3/8" | Yes | 00000000 | 000000 |
For Air Conditioners and Heaters | ||||||||||||
A | Electric, Gas, Oil | Single Stage | 24V AC | 1 | 50° to 90° | __ | 5" | 3 1/4" | 1 3/8" | Yes | 00000000 | 00000 |
B | Electric, Gas, Oil | Single Stage | 20V AC-30V AC | 1 | 40° to 90° | 4" | __ | __ | 1 3/4" | Yes | 0000000 | 00000 |
For Heaters | ||||||||||||
A | Electric | Single Stage | <1 and 24V AC | 1 | 50° to 90° | __ | 5" | 3 1/4" | 1 3/8" | Yes | 00000000 | 00000 |
B | Gas, Oil | Single Stage | 20V AC-30V AC | 1 | 40° to 90° | 4" | __ | __ | 1 3/4" | Yes | 0000000 | 00000 |
Programmable Low-Voltage Thermostats


Set these thermostats to adjust the temperature at certain times each day. If the power fails, they have battery backup to retain your program.
They control low-voltage HVAC systems. Single-stage thermostats work with systems that have only one speed. Multistage thermostat works with systems that have up to three heating speeds and two cooling speeds.
Thermostats with a daily program function can have an individual program for each day of the week.
Add an optional remote sensor (sold separately) to touchpad thermostats to take temperature reading up to 300 feet from the thermostat.
For System | Overall | |||||||||||
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Type | Efficiency | Program Function | Voltage | Current, A | Temp. Setting, ° F | Ht. | Wd. | Dp. | Batteries Included | Mounting Fasteners Included | Each | |
For Air Conditioners and Heaters | ||||||||||||
Push Button Control | ||||||||||||
Electric, Gas, Heat Pump, Oil | Single Stage | Weekdays/Saturday/Sunday | <1 to 30V AC | 1.5 | 45° to 99° | 3 3/4" | 6" | 1 1/8" | Yes | Yes | 0000000 | 000000 |
Touchpad Control | ||||||||||||
Electric, Gas, Heat Pump, Oil | Single Stage | Daily | <1 to 30V AC | 1.5 | 45° to 99° | 4 5/8" | 5 7/8" | 1 1/4" | Yes | Yes | 0000000 | 000000 |
Electric, Gas, Heat Pump, Oil, Steam | Multistage | Daily | <1 to 30V AC | 1.5 | 45° to 99° | 4 5/8" | 5 7/8" | 1 1/4" | Yes | Yes | 0000000 | 000000 |
Optional Remote Sensor for Touchpad Thermostats | 0000000 | Each | 000000 |
Wi-Fi Enabled Programmable Low-Voltage Thermostats


Connect to a Wi-Fi network so you can remotely program, monitor, and control the temperature from a computer, tablet, or smart phone. These thermostats control low-voltage, multistage HVAC systems that have up to three heating and cooling speeds. Use them to set an individual program for each day of the week.
For System | Overall | ||||||||||
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Type | Efficiency | Program Function | Voltage | Current, A | Temp. Setting, °F | Ht. | Wd. | Dp. | Mounting Fasteners Included | Each | |
For Air Conditioners and Heaters | |||||||||||
Push Button Control | |||||||||||
Electric, Gas, Heat Pump, Oil | Multistage | Daily | 20V AC-30V AC | 1.5 | 32° to 99° | 3 3/4" | 5 7/8" | 1" | Yes | 0000000 | 0000000 |
Touchpad Control | |||||||||||
Electric, Gas, Heat Pump, Oil, Steam | Multistage | Daily | 18V AC-30V AC | 1 | 40° to 99° | 3 1/2" | 4 1/2" | 7/8" | Yes | 0000000 | 000000 |
Snap-Action Thermostats

Also known as snap discs, these thermostats switch on cooling systems or switch off heating systems when equipment gets too hot. Each thermostat has five temperature options for switch activation; choose the one that best suits your application.
Unlike heat-actuated switches, these thermostats reset automatically, saving you the effort of replacing a melted fusible link. To calculate their reset temperature, subtract their differential temperature from the temperature you set them at. For example, a thermostat set at 100° F with a 20° F differential will reset at 80° F.
Normally open thermostats are also known as low-limit thermostats—they turn on at a set temperature. They’re good for use with fans and blowers.
Normally closed thermostats are also known as high-limit thermostats—they turn off at a set temperature. They’re often used with electric water heaters, stoves, and furnaces.
Overall | Mounting | ||||||||||||||
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Temperature Setting | Temperature Differential | Switch Type | Switch Starting Position | Voltage | Current | Wire Connection Type | Terminal Size | Face Dia. | Ht. | Wd. | Dp. | Hole Dia. (No. of) | Fasteners Included | Each | |
Close at Temperature Setting | |||||||||||||||
90° F, 100° F, 110° F, 120° F, 130° F | 20° F | SPST | 1 Off (Normally Open) | 120V AC/240V AC | 25A | Quick-Disconnect Terminals | 1/4" | 3/4" | 1 3/4" | 2" | 1 3/8" | 3/16" (2) | No | 0000000 | 000000 |
140° F, 150° F, 160° F, 170° F, 180° F | 20° F | SPST | 1 Off (Normally Open) | 120V AC/240V AC | 25A | Quick-Disconnect Terminals | 1/4" | 3/4" | 1 3/4" | 2" | 1 3/8" | 3/16" (2) | No | 0000000 | 00000 |
Open at Temperature Setting | |||||||||||||||
135° F, 145° F, 155° F, 165° F, 175° F | 20° F | SPST | 1 On (Normally Closed) | 120V AC/240V AC | 25A | Quick-Disconnect Terminals | 1/4" | 3/4" | 1 3/4" | 2" | 1 3/8" | 3/16" (2) | No | 0000000 | 00000 |
135° F, 145° F, 155° F, 165° F, 175° F | 40° F | SPST | 1 On (Normally Closed) | 120V AC/240V AC | 25A | Quick-Disconnect Terminals | 1/4" | 3/4" | 1 3/4" | 2" | 1 3/8" | 3/16" (2) | No | 0000000 | 00000 |
175° F, 185° F, 195° F, 205° F, 215° F | 40° F | SPST | 1 On (Normally Closed) | 120V AC/240V AC | 25A | Quick-Disconnect Terminals | 1/4" | 3/4" | 1 3/4" | 2" | 1 3/8" | 3/16" (2) | No | 0000000 | 00000 |
210° F, 220° F, 230° F, 240° F, 250° F | 40° F | SPST | 1 On (Normally Closed) | 120V AC/240V AC | 25A | Quick-Disconnect Terminals | 1/4" | 3/4" | 1 3/4" | 2" | 1 3/8" | 3/16" (2) | No | 0000000 | 00000 |
250° F, 260° F, 270° F, 280° F, 290° F | 40° F | SPST | 1 On (Normally Closed) | 120V AC/240V AC | 25A | Quick-Disconnect Terminals | 1/4" | 3/4" | 1 3/4" | 2" | 1 3/8" | 3/16" (2) | No | 0000000 | 00000 |
Reverse-Action Air-Powered Thermostats

Also known as a two-pipe thermostat, this thermostat uses compressed air for power. Use when electricity is not practical or available for controlling your HVAC system. It is reverse action, so as the temperature goes up, the pressure in the system goes down.
Air consumption is measured in standard cubic inches/minute (scim).
The included universal fitting kit consists of a cover, mounting plate, dial stops, screws, tubing reducers, tubing, and mounting hardware. Internal filters are for the air connections and are included.
Calibration kit is sold separately and enables quick adjustment of thermostat.
Overall | |||||||||
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Max. Pressure, psi | Calibration Point, psi | Air Consumption | Temp. Setting, °F | Ht. | Wd. | Dp. | Mounting Fasteners Included | Each | |
For Air Conditioners and Heaters | |||||||||
30 | 9 | 15 scim @ 20 psi | 55° to 85° | 2 1/8" | 2 1/8" | 1 3/8" | Yes | 00000000 | 0000000 |
Calibration Kit—Includes: 1/8 NPT Male Pressure Gauge, 3/16 NPT Male Adapter, Adjustment Wrenches, Hand Pump, Screwdriver | 00000000 | Each | 0000000 |
Direct-Action Air-Powered Thermostats

Also known as a two-pipe thermostat, this thermostat uses compressed air for power. Use when electricity is not practical or available for controlling your HVAC system. It is direct action, so as the temperature goes up, the pressure in the system goes up.
Air consumption is measured in standard cubic inches/minute (scim).
The included universal fitting kit consists of a cover, mounting plate, dial stops, screws, tubing reducers, tubing, and mounting hardware. Internal filters are for the air connections and are included.
Calibration kit is sold separately and enables quick adjustment of thermostat.
Overall | |||||||||
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Max. Pressure, psi | Calibration Point, psi | Air Consumption | Temp. Setting, °F | Ht. | Wd. | Dp. | Mounting Fasteners Included | Each | |
For Air Conditioners and Heaters | |||||||||
30 | 9 | 15 scim @ 20 psi | 55° to 85° | 2 1/8" | 2 1/8" | 1 3/8" | Yes | 00000000 | 0000000 |
Calibration Kit—Includes: 1/8 NPT Male Pressure Gauge, 3/16 NPT Male Adapter, Adjustment Wrenches, Hand Pump, Screwdriver | 00000000 | Each | 0000000 |
Incremental and Proportional HVAC Damper Actuators

Actuators automatically switch between incremental and proportional control to adjust dampers to regulate airflow. Actuators attach to the damper shaft to rotate it open and closed when signaled by a controller (not included).
For Max. Damper Shaft | Overall | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Torque, in.-lbs. | Voltage | Current, A | Electrical Connection Type | Dia. | Ht. | Wd. | Material | Direction of Operation | Rotation Range | Ht. | Wd. | Dp. | Each | |
Without Spring Return | ||||||||||||||
90 | 24V AC/24V DC | 0.02 | Hardwire | 1 1/16" | 3/4" | 3/4" | Plastic | Clockwise, Counterclockwise | 35°-95° | 6 5/8" | 3 1/4" | 2 1/2" | 0000000 | 0000000 |
180 | 24V AC/24V DC | 0.02 | Hardwire | 1 1/16" | 3/4" | 3/4" | Plastic | Clockwise, Counterclockwise | 35°-95° | 7 7/8" | 4" | 2 5/8" | 0000000 | 000000 |
310 | 24V AC/24V DC | 0.02 | Hardwire | 1 1/16" | 3/4" | 3/4" | Plastic | Clockwise, Counterclockwise | 35°-95° | 7 7/8" | 4" | 2 5/8" | 0000000 | 000000 |
Incremental HVAC Damper Actuators


When duct airflow varies from the setpoint, these actuators open and close until the system requirement is restored. Use to automatically adjust dampers to regulate airflow. Actuators attach to the damper shaft to rotate it open and closed when signaled by a controller (not included).
Actuator with spring return can be set to return the damper to an open or closed position if the power fails. Use the crank for precise adjustments.
For Max. Damper Shaft | Overall | |||||||||||||
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Torque, in.-lbs. | Voltage | Current, A | Electrical Connection Type | Dia. | Ht. | Wd. | Material | Direction of Operation | Rotation Range | Ht. | Wd. | Dp. | Each | |
Without Spring Return | ||||||||||||||
35 | 24V AC | 0.1 | Hardwire | 1/2" | 3/8" | 3/8" | Plastic | Clockwise, Counterclockwise | 0°-90° | 5 1/8" | 2 3/4" | 2 1/4" | 0000000 | 0000000 |
With Spring Return | ||||||||||||||
177 | 24V AC/24V DC | 0.7 | Hardwire | 3/4" | 1/2" | 1/2" | Aluminum | Clockwise, Counterclockwise | 30°-90° | 10 3/8" | 4" | 3 1/4" | 0000000 | 000000 |
Proportional HVAC Damper Actuators

This actuator provides better control than incremental actuators because it is constantly being positioned in response to duct airflow requirements. Use to automatically adjust dampers to regulate airflow. It attaches to the damper shaft to rotate it open and closed when signaled by a controller (not included). Actuator can be set to return the damper to an open or closed position if the power fails. Use the crank for precise adjustments.
For Max. Damper Shaft | Overall | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Torque, in.-lbs. | Voltage | Current, A | Control Signal | Electrical Connection Type | Dia. | Ht. | Wd. | Material | Direction of Operation | Rotation Range | Ht. | Wd. | Dp. | Each | |
With Spring Return | |||||||||||||||
177 | 24V AC/24V DC | 0.7 | 0-10V DC/0-20mA | Hardwire | 3/4" | 1/2" | 1/2" | Aluminum | Clockwise, Counterclockwise | 30°-90° | 10 3/8" | 4" | 3 1/4" | 0000000 | 0000000 |