Call us 7 days a week

1.888.978.7759
Click to Chat

Know exactly what you want?

Save time with this quick order form. If you know the catalog/part numbers for the items you wish to purchase, enter them into your cart here. You can also browse the site and add items to your cart from any product page.

Quick Order

Item NumberQuantity
Return to Category List

Browse HVAC/R Controls

(2,246 items)

Narrow Your Results

Price

Brand

  • More...
  • Less...

Switch Action

Voltage

  • More...
  • Less...

Amps

Application

Capillary Length Feet

Flame Pattern Type

Length Inches

Recently Viewed

Categories

  • Fan and Limit Controllers

    See all 3 items in product family.
    Honeywell Fan And Limit Controllers Are Ideal For Control Of High Limit And Fan Motors In All Types Of Forced Air Heating Systems.

    Controllers have two switches, one which opens the limit circuit if the plenum temperature exceeds the preset safety limit and then resets automatically. The other switch turns the fan on and off. Controllers may be used as limit controllers by wiring only the limit side. Limit contacts are suitable for line voltage or low voltage. Controls adapt to many competitive mounting holes in replacement applications.

    Click for more
  • Electronic Fan Speed Controls

    See all 22 items in product family.
    Electronic Fan Speed Controls Provide An Alternative To Fan Cycling Control For Small And Medium Size Refrigeration And Heating, Ventilating, And Air Conditioning (HVAC) Applications.

    Electronic Fan Speed Controls are refrigerant pressure actuated, electronic motor-speed controllers. Use with manufacturer approved single-phase permanent split-capacitor motors. Controls sense condenser refrigerant pressure and automatically adjust fan motor speed according to sensed pressure to provide condenser pressure control. The soft start capability provides a smooth fan startup, which reduces motor-starting noise and abrupt changes in motor speed and the motor control provides a wide range of condenser fan motor applications. Enclosures allow indoor and panel mounting or outdoor mounting. Built-in voltage surge protection. Available in a variety of operating ranges.

    Click for more
  • Thermostats And Transformers

    See all 8 items in product family.
    Variable Speed Controller manually controls 1 group of variable speed fans. Offers lightning protection using a PVC non-corrosive enclosure. Controls temperature set point and minimum speed. Includes radio wave interference filter. Offers a temperature control range of 41 to 96°F. 2 Year Limited Warranty.

    Mechanical Thermostats control up to 2 devices. Can be used to operate fans, heaters, curtains on livestock buildings or any other electrical device needing automatic control. Water and dust resistant high impact plastic housing. Fire resistant for trouble free operation. Operating temperature range of 32 to 104°F. CSA approved.

    Transformers manually operate single-phase fans. Includes setting knob with 7 positions.

    Click for more
  • Sail Switch

    See all 2 items in product family.
    Simplify Installation With Multi-Speed Fans, Inaccessible Air-Handlers And Fan Motors With Voltages Or Phase Differences From Controlled Equipment With Honeywell Sail Switch (S688A).

    Honeywell Sail Switch activates an electronic air cleaner, a humidifier or other equipment in response to airflow from the system fan. It is mounted in the return air duct where the sail will be in the direct path of an unrestricted air stream. Polyester film sail is mounted on a micro switch snap switch. Removable spring counterbalances sail to allow mounting in either vertical (up or down) or horizontal air flow. Top and bottom conduit knockouts for wiring convenience. Low air velocity switch operation makes at 250 FPM and breaks at 75 FPM. Sail Assembly for S688A is a replacement sail for the Sail Switch.

    Click for more
  • Airflow Switch

    See all 2 items in product family.
    Airflow Switches Are Ideal For Air Flow sensingIn Make-Up Air/Exhaust System Applications.

    Airflow Switches are made of a rugged steel enclosure for long lasting durability. Detects air flow or the absence of air flow in ducts, responding only to velocity of air movement. One-piece stainless steel paddle can be trimmed, if necessary. Control supplied with mounting plate gasket. Range adjusting screw permits field adjustment of flow rate setting. Velocity is 2000 FPM (10 m/sec.). Dimensions are 10-3/8 in. H (including paddle), 4 in. W, 2-13/16 in. D.

    Click for more
  • Fan Controls

    See all 5 items in product family.
    Honeywell Fan Control Centers Provide Low Voltage Control Of Line Voltage Fan Motors And Auxiliary Circuits In Heating, Cooling And Air-Conditioning Systems.

    Provides overload protection for transformer. Convenient connections for thermostat and heating-cooling equipment wiring. Mounts on standard 4 x 4 junction box. Relay is easily replaced without disturbing wiring. R8239 Fan Controls include NEMA standard Type D transformer to power low voltage control systems.

    Click for more
  • Electronic Fan Timers

    See all 2 items in product family.
    Electronic Fan Timers Are Ideal For Integrated Control Of All Burner And Circulator Fan Operations In Oil Furnaces.

    Electronic Fan Timers are made of carbon steel for long lasting durability. Control provides central wiring point for most electrical components in furnace. Monitors thermostat for heat, cool and fan demand. Runs oil burner primary control and up to two-speed circulating fans, as required. Monitors limit switch string, which energizes circulating fan whenever limit switch opens. Replace all existing Honeywell ST9120, ST9101, ST9141 and ST9160 models with the Universal Electronic Fan Timer. Integrates control of all combustion blower and circulating fan operations in gas warm air appliance. Replaceable fuse and DIP switch with selectable heat and cool delay for added flexibility. Diagnostic LED and continuous EAC and HUM terminal connections. Types are Electronic Fan Timer and Universal Electronic Fan Timer.

    Click for more
  • Supco Fan Controls

    See all 2 items in product family.
    Supco Fan Controls Are Ideal As Replacements And For Use In Fan Cycling And Other Pressure Applications.

    Supco Fan Controls are made for commercial grade for long lasting durability. Provides DPDT plug-in style relay (90340), 40 VA transformer and mounts directly to 4" x 4" electrical box. Color coded wiring for easy installation. Universal FC4031 includes multi tap primary voltages for all applications and reduces inventory. Types are Fan Center 40Va 120/208/240Vac and Fan Center 40Va 120Vac. Tolerances are 5, 10 and 15. Package quantity is 1. Open and Closed PSIs vary per type.

    Click for more
  • Taco® Hydro Air Fan Control

    See all 2 items in product family.
    Taco® Hydro Air Fan Controls Are The ideal Interface Between The Thermostat And Air Handler.

    Fan controls provide advance diagnostic capabilities, universal thermostat compatibility, a simplified wiring layout and automatic multi-speed switching while increasing year round comfort and operating efficiency. Features an isolated end switch to start the boiler and/or pump. Includes 3 built-in fan time delay options, 2 selectable pump exercise modes, a secondary aquastat connection for freeze protection and the ability to switch a pump and/or boiler. 3 Year Limited Warranty.

    Click for more
  • Motor Control

    See all 1 items in product family.
    The S66 is designed to modulate the speed of a motor based on a 0 to 10 VDC input signal. The input signal can be supplied by any external source including those referenced to temperature, pressure, humidity, or flow. The S66 requires a 24 VAC power supply that is of the same phase as the AC voltage (motor) being varied. It features a hard start of motor and Built-in radio Frequency Interference Suppression.

    Manufacturer's Specification Sheet
    Click for more
  • Warm Air Limit Controls

    See all 4 items in product family.
    Warm Air Limit Controls With Manual Reset Are Ideal For High Temperature Cut-Out Applications.

    Warm Air Limit Controls lock out on a temperature increase to the control set point. Manual reset is required before the electrical contacts can be reclosed, so the trip-free reset lever does not permit restarting until the reset lever is manually released. The A25 is normally located in a return air duct and is wired to shut down air conditioning or ventilating fans when the temperature of the air becomes excessively hot. Rod and tube type sensing element provides positive control action. Range adjusters operate with either a knob or a screwdriver slot, and are available with SPST or SPDT switch action.

    Click for more
  • Evaporator Fan Controllers

    See all 3 items in product family.
    RIB® Evaporator Fan Controllers Are Ideal For Use In Walk-In Coolers And Freezers For Convenience Stores, Flower Shops, Hospitals, Cafeterias And More.

    RIB® Evaporator Fan Controllers are solidly engineered for long lasting durability and dependability. Designed to monitor the temperature on both the intake and exhaust of the evaporator fan unit. When the temperature of the exhaust is lower than that of the intake the fans will run at normal speed. When the temperature of the exhaust is equal to the intake temperature the evaporator fan controller will reduce the speed of the fans to save energy and reduce energy costs. 208V or 120/240V units available for use with Walk-In Coolers with 2 Speed ECM or Shaded Pole Motors. 120/240V unit available for use with Walk-In Coolers with 2 Speed Shaded Pole Motor only.

    Click for more
  • Fan Safety Alarm Circuits

    See all 4 items in product family.
    RIB® Fan Safety Alarm Circuits Are Ideal For Commercial Or Industrial Energy Management Applications.

    RIB® Fan Safety Alarm Circuits are solidly engineered for long lasting durability and dependability. Various models available for particular need or application. May also be used to isolate field devices from each other and from controller. 24V AC units are available with 2, 4, 5 or 6 relays and in various dimensional sizes.

    Click for more
  • Supco® Universal Potential Relays

    See all 13 items in product family.
    Supco® Universal Potential Relays Are Ideal For Heating, Air Conditioning, Refrigeration And Fan Control Applications.

    Supco® Universal Potential Relays are constructed with a high impact housing for long lasting durability. Universal and adjustable potential relays replace wire by wire, virtually any potential relay on the market. Available types are Supco 3 'N 1 Start Relay, Supco Adjustable Potential Relay, Supco General Purpose Switching Fan Relay, Supco Push On Relay, Supco Relay Overload and Universal Potential Relay. Sizes vary per model.

    Click for more
  • Adjustable Fan Controls

    See all 8 items in product family.
    "Adjustable Fan Controls Are Ideal For Use In A Variety Of Climate-Control Applications.

    Adjustable Fan Controls are solidly manufactured for long lasting durability and dependability. Packard brand SPST (Single Pole Single Throw) Close On Rise units are available with temperature ranges of 90?? to 130?? and 140?? to 180?? and Open On ranges of 135° to 175°, 140° to 180°, 150° to 190°, 175° to 215°, 210° to 250° and 250° to 290°. White-Rodgers™ brand Snap Disc Fan Control models have Open On ranges of 150° to 190° and 140° to 180°.

    "
    Click for more
Featured Items