HVAC Controls | McMaster-Carr

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Switching Current

Input Voltage

Number of Circuits Controlled

Electrical Phase

Single

Three

Horsepower @ Switching Voltage

Mounting Location

Voltage

Switch Designation

Number of Terminals

Switching Voltage

42V AC to 660V AC

600V AC

Wire Connection

Quick-Disconnect Terminal

For Use With

Duct Size

Load Type

REACH

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

Switch Starting Position

Operation Type

Thermostat Type

Wi-Fi Enabled Programmable

Temperature Setting

Certification

C-UL Recognized Component

Energy Star Certified

ETL Listed

FM Approved

UL Listed

UL Recognized Component

Material

For System Type

Width

288 Products

Heating, Ventilation, and Air Conditioning

Duct Damper Actuators

Automatically adjust duct dampers to regulate airflow

5 products

Thermostats

Connect to heaters, fans, and air conditioners to control the temperature

43 products

Thermostat Guards

Restrict access to thermostats and protect them from damage

11 products

HVAC Flame Detectors

Replace flame detectors in HVAC equipment such as furnaces, ovens, water heaters, and boilers

1 product

HVAC Switches

Control and monitor airflow in HVAC systems automatically

3 products

Flue-Gas Exhausters

Vent furnaces and other gas- or oil-fired equipment

8 products

Duct and Duct Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

30 products

Barometric Draft Dampers

Maintain consistent airflow in your furnace to improve its performance

6 products

Electrical

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

131 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

3 products

Measuring and Inspecting

Smoke Pens

Produce smoke to observe airflow and detect leaks in HVAC systems; reusable, unlike smoke candles

1 product

Smoke Candles

Light the wick for a short burst of smoke to observe airflow and detect leaks in HVAC systems

4 products

Smoke Pellets

Detect airflow and leaks in HVAC systems near server rooms and other areas with electronics

4 products

Smoke Powder

No flame needed—release a burst of powder to detect airflow and leaks in HVAC systems

2 products

Safety Equipment

Smoke Detector Test Stations

Test hard-to-reach HVAC smoke detectors from a convenient location

1 product

Smoke Detectors

Warn people when there's smoke in your facility

3 products