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Switches & Sensors

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Showing 1–48 of 168 results

  • In StockMML260 - MANUAL LIMIT SWITCH (260°)
    PACKARD

    MML260 – MANUAL LIMIT SWITCH (MICRO, 260°)

    SKU · PRL260
    $14.97

    Manual reset micro limit switch, opens at 260°F. Push-button reset after trip. Replaces Supco SRL260 and Packard PRL260. Universal fit for residential furnaces.

  • Low StockSLP3560 - REFRIGERANT LOW PRESSURE SWITCH (OPEN @ 35 PSI)
    SUPCO

    SLP3560 – REFRIGERANT LOW PRESSURE SWITCH (OPEN @ 35 PSI)

    SKU · PLP3560
    $32.05

    Supco low-pressure switch — opens at 35 PSI, closes at 60 PSI. 1/4″ SAE flare fitting, auto-reset. Protects compressor from low refrigerant pressure.

  • In Stock42-105583-04 - FURNACE PRESSURE SWITCH (-0.40PF)
    RHEEM

    42-105583-04 – FURNACE PRESSURE SWITCH (-0.40PF)

    SKU · 42-105583-04
    $34.21

    Rheem 42-105583-04 furnace pressure switch, -0.40″ WC. OEM replacement for Rheem and Ruud gas furnaces. Verifies inducer draft before ignition.

  • In Stock632484R - FLAME SENSOR (NORTEK)
    NORTEK

    632484R – FLAME SENSOR (NORTEK)

    SKU · 632484
    $43.99

    Nortek 632484R flame sensor for Nortek and Broan furnaces. OEM replacement part. Also fits Intertherm, Miller, and Nordyne branded units.

  • Low Stock47-22861-03 - LIMIT SWITCH (RHEEM, MICRO, WIDE MOUNT, L250°)
    UNIVERSAL

    DL210 – LIMIT SWITCH

    SKU · L210
    $16.66

    Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.

  • In StockS1-02435271000 - FURNACE PRESSURE SWITCH (-0.50PF)
    SOURCE1

    S1-02435271000 – FURNACE PRESSURE SWITCH (-0.50PF)

    SKU · S1-02435271000
    $64.70

    York S1-02435271000 furnace pressure switch, -0.50″ WC. OEM for York, Coleman, and Luxaire furnaces. Replaces 024-27576-000, 49L91, and C341750P01.

  • In Stock52W29 - FLAME SENSOR (LENNOX, AFTERMARKET, DIRECT, FLS52W29)
    SUPCO

    52W29 – FLAME SENSOR (LENNOX, AFTERMARKET, DIRECT, FLS52W29)

    SKU · 52W29
    $23.18

    Lennox 52W29 flame sensor kit with straight probe. Aftermarket direct replacement for Lennox furnaces. Also listed as FLS52W29.

  • Low StockHH18HA507 - LIMIT SWITCH (L185, LARGE BASE MICRO)
    CARRIER

    HH18HA507 – AUTO LIMIT SWITCH (MICRO, LARGE BASE, L185°)

    SKU · L185
    $26.66

    Carrier HH18HA507 auto reset limit switch, opens at 185°F, closes at 145°F. Large base, micro size. OEM replacement for Carrier, Bryant, and Payne furnaces.

  • In StockSLS140 - TEMPERATURE LIMIT SWITCH (MICRO, AUTO, L140°)
    SUPCO

    SLS140 – AUTO LIMIT SWITCH (MICRO, L140°)

    SKU · MAL140
    $15.01

    Supco SLS140 auto reset micro limit switch, opens at 140°F, closes at 100°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.

  • In StockHS4P1S - HEAT SEQUENCER (HS24A346, 2 DPDT)
    PACKARD

    HS4P1S – HEAT SEQUENCER (HS24A346, 2 DPDT)

    SKU · Q106
    $42.40

    24V heat sequencer with two DPDT relays in series. Handles up to 25 amps. Replaces HS24A346. For electric furnaces with multi-stage heating elements.

  • Low StockHH18HA495 - MANUAL LIMIT SWITCH (MICRO, TEARDROP, L350°, 1177033)
    CARRIER

    HH18HA495 – MANUAL LIMIT SWITCH (MICRO, TEARDROP, L350°, 1177033)

    SKU · HH18HA495
    $22.09

    Carrier HH18HA495 manual reset limit switch, opens at 350°F. Teardrop mount. Crosses to 1177033. OEM flame rollout switch for Carrier, Bryant, and Payne.

  • Low StockSLP2565 - REFRIGERANT LOW PRESSURE SWITCH (OPEN @ 25 PSI)
    SUPCO

    SLP2565 – REFRIGERANT LOW PRESSURE SWITCH (OPEN @ 25 PSI)

    SKU · PLP2565
    $32.05

    Supco low-pressure switch — opens at 25 PSI, closes at 65 PSI. 1/4″ SAE flare fitting, auto-reset. Protects compressor from low refrigerant pressure.

  • In StockLH680534 - FLAME SENSOR (CARRIER, AFTERMARKET, DIRECT, FLS014)
    SUPCO

    LH680534 – FLAME SENSOR (CARRIER, AFTERMARKET, DIRECT, FLS014)

    SKU · FLS014
    $23.44

    Carrier flame sensor replacement (LH680534). Aftermarket direct fit with 73-degree bend and Kanthal rod. Replaces LH33WZ515, LH33WZ517, LH33WZ521, and more.

  • In StockHS1P1S - HEAT SEQUENCER (SPST, Q101)
    SUPCO

    HS1P1S – HEAT SEQUENCER (SPST, Q101)

    SKU · NS101
    $27.35

    24V SPST heat sequencer (1 switch). Supco Q101. Basic single-stage sequencer for electric furnaces. Controls one heating element or blower.

  • In StockDL260 - LIMIT SWITCH
    UNIVERSAL

    DL260 – LIMIT SWITCH

    SKU · L260
    $16.66

    Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.

  • Low Stock42-101225-81 - FURNACE PRESSURE SWITCH (-0.35PF)
    RHEEM

    42-101225-81 – FURNACE PRESSURE SWITCH (-0.35PF)

    SKU · 42-101225-81
    $89.45

    Rheem 42-101225-81 furnace pressure switch, -0.35″ WC. OEM replacement for Rheem and Ruud gas furnaces. Monitors inducer draft for safe ignition.

  • Low StockHH18HA461 - MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L160°)
    CARRIER

    HH18HA461 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L160°)

    SKU · HH18HA461
    $25.61

    Carrier HH18HA461 manual reset limit switch, opens at 160°F. Large base, micro size. Also crosses to HH18HA167. OEM for Carrier, Bryant, and Payne systems.

  • In StockB1370108 - FURNACE ROLLOUT LIMIT SWITCH (LARGE BASE, MICRO, MANUAL, L300)
    GOODMAN

    B1370108 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L300°)

    SKU · B1370108
    $19.60

    Goodman B1370108 manual reset rollout limit switch, opens at 300°F. Large base, micro size. OEM safety switch for Goodman/Amana furnaces.

  • In StockFPS-T - FLOAT SWITCH (INLINE TEE ELBOW)
    STANDEX

    FPS-T – FLOAT SWITCH (INLINE TEE & ELBOW)

    SKU · FPSC5001U
    $23.84

    FPS-T inline float switch with tee and elbow fittings. Installs on your AC condensate drain line. Shuts off the system if the drain clogs. Magnetic reed design.

  • Low StockS1-2702-311P - FLAME SENSOR (YORK)
    SOURCE1

    S1-2702-311P – FLAME SENSOR (YORK)

    SKU · S1-2702-311P
    $43.15

    York / Coleman / Evcon OEM flame sensor. Johnson Controls does not publish public specification sheets or cross-references for its York and Source 1 service parts, so no temperature rating, set point or amperage is listed here.

  • In Stock0130M00243 - DOOR SWITCH (GOODMAN)
    GOODMAN

    0130M00243 – DOOR INTERLOCK SWITCH (GOODMAN)

    SKU · 10690402S
    $19.40

    Goodman 0130M00243 furnace door safety switch. Kills power when the access panel is removed. OEM replacement for multiple Goodman/Amana furnace models.

  • Low Stock5D51-35 - FAN LIMIT CONTROL (5)
    HONEYWELL

    5D51-35 – FAN & LIMIT CONTROL (5″)

    SKU · L4064B2228
    $161.37

    Honeywell L4064B2228 fan and limit control with 5-inch element. Adjustable fan differential and fixed high-limit safety cutoff. For older furnaces without electronic controls.

  • Low Stock47-25349-01 - HIGH TEMPERATURE LIMIT SWITCH (3, ODD BASE, L160°)
    RHEEM

    47-25349-01K – HIGH TEMPERATURE LIMIT SWITCH (3″, ODD BASE, L160°)

    SKU · 47-25349-01K
    $27.90

    Rheem 47-25349-01 high limit switch, 3-inch insertion, odd base, opens at 160°F. Auto reset. Kit version (47-25349-01K). OEM for Rheem and Ruud furnaces.

  • In Stock903600 - FLAME SENSOR (NORTEK)
    NORTEK

    903600 – FLAME SENSOR (NORTEK)

    SKU · 903600
    $36.07

    Nortek 903600 OEM flame sensor for Nortek and Broan furnaces. Replaces older part number 632396. Ceramic insulator with stainless steel sensing rod.

  • Low StockPS000 - PRESSURE SWITCH
    CLEVELAND CONTROLS

    PS000 – PRESSURE SWITCH

    SKU · PS000
    $45.27

    Cleveland Controls field-adjustable air pressure sensing switch kit. It proves draft or combustion-air flow before the control will allow ignition, and it can sense positive, negative or differential pressure.

  • Low Stock47-22860-01 - AUTO LIMIT SWITCH WITH ANTICIPATOR (RHEEM, L105°)
    RHEEM

    47-22860-01 – AUTO LIMIT SWITCH WITH ANTICIPATOR (RHEEM, L105°)

    SKU · 47-22860-01
    $34.34

    Rheem 47-22860-01 auto reset limit switch with built-in anticipator, opens at 105°F. OEM for Rheem and Ruud furnaces. Low-temp cutoff for heat pump applications.

  • In Stock42-23116-01 - HEAT SEQUENCER (SPST)
    RHEEM

    42-23116-01 – HEAT SEQUENCER (SPST)

    SKU · 42-23116-01
    $38.26

    24V SPST heat sequencer. OEM Rheem/Ruud part for electric furnaces. Single-pole single-throw configuration for staging one heating element.

  • In StockSLS200 - TEMPERATURE LIMIT SWITCH (MICRO, AUTO, L200°)
    SUPCO

    SLS200 – AUTO LIMIT SWITCH (MICRO, L200°)

    SKU · MAL200
    $15.01

    Supco SLS200 auto reset micro limit switch, opens at 200°F, closes at 160°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.

  • Low StockHH18HA498 - LIMIT SWITCH (210, AUTO)
    CARRIER

    HH18HA498 – AUTO LIMIT SWITCH (MICRO, LARGE BASE, L210°)

    SKU · HH18HA498
    $22.97

    Carrier HH18HA498 auto-reset limit switch. Micro size with large base, opens at 210°F. Shuts off the furnace burner if the heat exchanger gets too hot.

  • Low StockHK61EA033 - RECTIFIER BOARD (1186788)
    CARRIER

    HK61EA033 – RECTIFIER BOARD (1186788)

    SKU · 1186788
    $52.72

    Carrier/Bryant/Payne rectifier board. Converts AC to DC for relay control in electric heat systems. OEM part HK61EA033, replaces older HK61EA003.

  • Low Stock42-105601-29 - FURNACE PRESSURE SWITCH (-0.20PF)
    RHEEM

    42-105601-29 – FURNACE PRESSURE SWITCH (-0.20PF)

    SKU · HK06WC090 - CAN WORK FOR CARRIER
    $34.21

    Rheem 42-105601-29 furnace pressure switch, -0.20″ WC. OEM Rheem part that also cross-references to Carrier HK06WC090. Works in both Rheem and Carrier furnaces.

  • Low StockB1370126 - FURNACE PRESSURE SWITCH (-0.40PF)
    GOODMAN

    B1370126 – FURNACE PRESSURE SWITCH (-0.40PF)

    SKU · B1370126
    $49.06

    Goodman B1370126 furnace pressure switch, -0.40″ WC. OEM replacement for Goodman furnaces. Also replaces 20055506 and R102614-01.

  • In StockDL290 - LIMIT SWITCH
    UNIVERSAL

    DL290 – LIMIT SWITCH

    SKU · L290
    $16.66

    Snap-disc furnace high-limit switch from the DL series; the number is the opening (cut-out) temperature in degrees F. It is a safety device that breaks the heating circuit when the plenum overheats, and a limit that keeps tripping points at restricted airflow or a failed blower rather than at the switch.

  • Low StockHH12ZB140 - HIGH LIMIT SWITCH (3, L140°)
    CARRIER

    HH12ZB140 – HIGH LIMIT SWITCH (3″, L140°)

    SKU · HH12ZB140
    $35.18

    Carrier HH12ZB140 high limit switch, 3-inch insertion, opens at 140°F. Auto reset. Crosses to Supco SHL507, Trane SWT01276. Universal 3-inch L140 replacement.

  • Low Stock18G89 - FLAME SENSOR (LENNOX)
    LENNOX

    18G89 – FLAME SENSOR (LENNOX)

    SKU · 18G89
    $23.17

    Lennox 18G89 flame sensor for Lennox and Armstrong furnaces. OEM replacement with straight probe design. Also cross-references RS36453B001.

  • In StockS1-02527773700 - FLAME SENSOR (YORK, AFTERMARKET DIRECT, FLS700)
    SUPCO

    S1-02527773700 – FLAME SENSOR (YORK, AFTERMARKET, DIRECT, FLS700)

    SKU · FLS700
    $23.44

    York flame sensor replacement (S1-02527773700). Aftermarket direct fit with 4-inch probe and Kanthal rod. Fits York, Coleman, and Luxaire furnaces.

  • In StockSSRT3165 - RED SILICONE TUBING (INDUCER SWITCH TUBING, 1/4 ID x 60)
    SUPCO

    SSRT3165 – RED SILICONE TUBING (INDUCER SWITCH TUBING, 1/4″ ID x 60″)

    SKU · SSRT3165
    $9.73

    Supco SSRT3165 red silicone pressure switch tubing, 1/4″ ID x 60″. Handles -100°F to 500°F. Replaces cracked or melted rubber tubing on furnace inducer pressure switches.

  • In StockTHERMOCOUPLE - 36 (22236)
    PACKARD

    22236 – THERMOCOUPLE (36″)

    SKU · TH198036
    $15.98

    36-inch universal thermocouple for gas furnaces and water heaters. Stainless steel with universal adapter fittings. Fits most standing-pilot gas appliances.

  • Low Stock42-23116-06 - HEAT SEQUENCER (DPST)
    TRUELINE

    42-23116-06 – HEAT SEQUENCER (DPST)

    SKU · 42-23116-06
    $36.92

    24V DPST heat sequencer. OEM Rheem/Ruud part for electric furnaces. Double-pole single-throw for controlling two circuits simultaneously.

  • In StockHH18HA452 - MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L250°)
    CARRIER

    HH18HA452 – MANUAL LIMIT SWITCH (MICRO, LARGE BASE, L250°)

    SKU · HH18HA452
    $26.00

    Carrier HH18HA452 manual reset rollout limit switch, opens at 250°F. Large base, micro size. OEM flame rollout switch for Carrier, Bryant, and Payne furnaces.

  • In StockHK06WC069 - PRESSURE SWITCH (-0.27PF, 1176957)
    CARRIER

    HK06WC069 – FURNACE PRESSURE SWITCH (-0.27PF, 1176957)

    SKU · HK06WC069
    $70.56

    Carrier HK06WC069 furnace pressure switch, -0.27″ WC. OEM for Carrier, Bryant, and Payne furnaces. Replaces 1176957 and HK06WC091. Also listed as NS2-1600-00.

  • Low StockHH12ZB260 - HIGH LIMIT SWITCH (3, L260°)
    CARRIER

    HH12ZB260 – HIGH LIMIT SWITCH (3″, L260°)

    SKU · HH12ZB260
    $40.34

    Carrier HH12ZB260 high limit switch, 3-inch insertion, opens at 260°F. Auto reset. Crosses to Trane SWT01261. For Carrier, Trane, and other brand furnaces.

  • In Stock62-23543-01 - FLAME SENSOR (RHEEM)
    RHEEM

    62-23543-01 – FLAME SENSOR (RHEEM)

    SKU · FLS301
    $20.87

    Rheem 62-23543-01 flame sensor replacement. Fits Rheem and Ruud furnace models including RGPH and UGPH series. Aftermarket direct fit, listed as FLS301.

  • Low Stock88K09 - HEAT SEQUENCER (TRIPLE STACKED)
    LENNOX

    88K09 – HEAT SEQUENCER (TRIPLE STACKED)

    SKU · 88K09
    $74.93

    24V triple-stacked heat sequencer for Lennox electric furnaces. Thermal time delay relay that stages heating elements and fan activation.

  • In Stock69W43 - FLAME SENSOR (LENNOX, AFTERMARKET, DIRECT, 790-801A1)
    LENNOX

    69W43 – FLAME SENSOR (LENNOX, AFTERMARKET, DIRECT, 790-801A1)

    SKU · 69W43
    $34.12

    Lennox 69W43 flame sensor replacement with 90-degree bend. Direct aftermarket fit for Lennox furnaces. Also listed as 790-801A1 and 102431-02. Single-prong Kanthal rod.

  • Low StockSHL517 - HIGH TEMPERATURE LIMIT SWITCH (3, L220°)
    SUPCO

    SHL517 – HIGH TEMPERATURE LIMIT SWITCH (3″, L220°)

    SKU · HH12ZB220
    $35.14

    Supco SHL517 high limit switch, 3-inch insertion, opens at 220°F, closes at 180°F. Auto reset. Crosses to Carrier HH12ZB220 and Lennox 29M75.

  • In StockPR1922 - RELAY (DC)
    CARRIER

    PR1922 – RELAY (DC)

    SKU · PR1922
    $29.33

    22V DC SPST relay for electric heaters in ICP/Heil/Tempstar units. Rated 30A at 28V DC and 40A at 277V AC. Direct replacement for ICP furnaces.

  • Low StockSWT04232 - DUAL PRESSURE SWITCH (-0.17 -0.50)
    TRANE

    SWT04232 – DUAL PRESSURE SWITCH (-0.17″ & -0.50″)

    SKU · SWT04232
    $122.79

    Trane SWT04232 dual furnace pressure switch, -0.17″ and -0.50″ WC. For two-stage Trane/American Standard furnaces. Also replaces SWT02357 and C340789P02.

Showing 48 of 168 parts
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