Thermostats & Controls | Line Voltage & Low Voltage Thermostats, Relays and Transformers, Controls & Transformers, Temperature Sensors

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  1. STZW402WB+ Ki Z-Wave Thermostat
    Stelpro STZW402+ Series 4000 Watt KI Z-Wave Wall Thermostat for the Smart Home - Smartphone control ready - 120/240 Volts - 2-wire connection to heater - Backlighted 4000 Watts/240 Volts - (White)

    STELPRO626296388587

    $94.85

    Stock: 26

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  2. STE252NPWB+ Thermostat 240V
    Stelpro STE252NP+ Series 2500W Single Programming Electronic Thermostat - Convectors, electric baseboards & forced-air units - 120/208/240 Volts - 2-wire connection - Backlighted 2500 Watts/240 Volts - (White) 37-86 deg F range

    STELPRO626296267004

    $33.60

    Stock: 13

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  3. SWT2F Thermostat DP 120-277V 22A
    Stelpro SWT Series Line Voltage Mechanical Wall Thermostat - 4-wire connection. 50 to 90 °F - 22 Amps - Electric baseboards or wall fan heaters - Double Pole - Fahrenheit - 120 - 277 Volts - 22A

    STELPRO626296219621

    $16.80

    Stock: 2

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  4. ET120 Stelpro Thermostat
    Stelpro 0-10V Output Electronic Thermostat (ET120). LCD digital screen. 24 Vac 50/50 Hz, "heat", °C , white - Lcd - 0 - 10V Output - 24 Voltsac - "Heat" - °C - White

    STELPRO626296197530

    $103.25

    Stock: 2

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  5. STE302R2W+ Thermostat Relay 3kW/240V
    Stelpro STE302R2+ Series single programming double-pole electronic thermostat. Control electric heating units with or without fans. 150 to 1500 W @ 120 V / 260 to 2600 W @ 208 V / 300 to 3000 W @ 240 V - Relay Backlighted 3000 Watts/240 Volts - (White)

    STELPRO626296187708

    $56.35

    Stock: 4

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  6. F290143 Clear Platic Thermostat Guard
    Stelpro Thermostat Guard (F29). Clear plastic. Tumbler lock (keys included).

    STELPRO786710007491

    $28.35

    Stock: 0

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  7. F290193 Metal Thermostat Guard
    Stelpro Thermostat Guard (F29). Metal. Tumbler lock (keys included).

    STELPRO786710002953

    $39.55

    Stock: 0

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  8. STE402NPSW+ Thermostat 4kW/240V
    Stelpro STE402NP+ Series 4000 Watt Single Programming Electronic Thermostat - 120/208/240/277 Volts - 2-wire connection - Compatible with forced-air units - Backlighted 4000 Watts/240 Volts - (Soft White)

    STELPRO626296276976

    $40.50

    Stock: 0

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  9. STE241WB+ Thermostat
    Stelpro low voltage single programming electronic thermostat (STE241) (24 V) efficiently control relays (electronic or not). Electric units with or without fans and electric furnaces - 24 Volts - 1 Stage (White)

    STELPRO626296275740

    $41.65

    Stock: 0

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  10. STE402PWB+ Thermostat 4kW/240V
    Stelpro STE402P+ Series 4000 Watt Multiple Programming Electronic Thermostat - 120/208/240 Volts - 2-wire connection - Compatible with forced-air units - Backlighted 4000 Watts/240 Volts - (White)

    STELPRO626296267042

    $53.90

    Stock: 0

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  11. STE402NPWB+ Thermostat 240V
    Stelpro STE402NP+ Series 4000 Watt Single Programming Electronic Thermostat - 120/208/240/277 Volts - 2-wire connection - Compatible with forced-air units - Backlighted 4000 Watts/240 Volts - (White)

    STELPRO626296267035

    $41.30

    Stock: 18

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  12. STE302PWB+ Thermostat 240V
    Stelpro STE302P+ Series 3000 Watt Multiple Programming Electronic Thermostat - 120/208/240 Volts - 2-wire connection - Compatible with forced-air units - Backlighted 3000 Watts/240 Volts - (White)

    STELPRO626296267028

    $49.00

    Stock: 0

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  13. STE302NPWB+Stat 3kW/240V
    Stelpro STE302NP+ Series 3000W Single Programming Electronic Thermostat - Control electric heating units with or without fans - 2-wire connection - 120/208/240 Volts - Backlighted 3000 Watts/240 Volts - (White)

    STELPRO626296267011

    $29.10

    Stock: 1

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  14. SWT1F Wall Thermostat 120-277V 22A
    Stelpro SWT Series Line Voltage Mechanical Wall Thermostat - 2-wire connection. 50 to 90F - 22 Amps - Electric baseboards or wall fan heaters - Single Pole - Fahrenheit - 120V, 208V, 240V & 277 Voltage - UL Approved

    STELPRO626296219607

    $12.25

    Stock: 0

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  15. STE302PS24+ Thermostat
    Stelpro STE302P+ Series 3000 Watt Multiple Programming Electronic Thermostat - 120/208/240 Volts - 2-wire connection - Compatible with forced-air units - Backlighted 3000 Watts/240 Volts - (Silver)

    STELPRO626296201978

    $51.60

    Stock: 0

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  16. STE302PW24+ Thermostat
    Stelpro STE302P+ Series 3000 Watt Multiple Programming Electronic Thermostat - 120/208/240 Volts - 2-wire connection - Compatible with forced-air units - Backlighted 3000 Watts/240 Volts - (White)

    STELPRO626296200414

    $39.90

    Stock: 0

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  17. D010 Thermostat l Knob 24Vac "Heat" °C
    Stelpro Low Voltage Electronic Thermostat (D010). 1 A @ 24 Vac. 3-wire connection. All or nothing @ 24 Vac - Dial Knob - 24 Voltsac - "Heat" - °C - White -

    STELPRO626296197554

    $32.90

    Stock: 0

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  18. ET180 Stelpro ET180 Series
    Stelpro Low Voltage Electronic Thermostat (ET180). Voltage: 1 A @ 24 Vac. 2-wire connection. display powered by batteries (2 X AAA) - Lcd - 24 Volts - Output - 24 Voltsac - "Heat" - °C - White

    STELPRO626296197547

    $41.65

    Stock: 0

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  19. STE302PW+ Prog. Thermostat 3kW/240V
    Stelpro STE302P+ Series 3000 Watt Multiple Programming Electronic Thermostat - 120/208/240 Volts - 2-wire connection - Compatible with forced-air units - Backlighted 3000 Watts/240 Volts - (White)

    STELPRO626296197516

    $42.00

    Stock: 0

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  20. STE403NPW24 Stelpro STE402NP Series
    Stelpro Single Programmable Elect. Thermostat - 5750 Watts/347 Volts - (White) (Pack Of 24)

    STELPRO626296189405

    $87.15

    Stock: 0

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  21. R841D1036 Mech. Relay No Transformer 24V
    Stelpro Low Voltage Electromechanical Relay (R841). Can be installed in an external junction box and may or may not be installed in the junction box of the heating unit - No Transformer 24 Volts

    STELPRO626296188101

    $74.20

    Stock: 0

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  22. STE302NPS+ Stelpro STE302NP Series
    Stelpro STE302NP+ Series 3000W Single Programming Electronic Thermostat - Control electric heating units with or without fans - 2-wire connection - 120/208/240 Volts - Backlighted 3000 Watts/240 Volts - (Silver)

    STELPRO626296187845

    $46.50

    Stock: 0

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  23. STE302NPW+ Stelpro STE302NP Series
    Stelpro STE302NP+ Series 3000W Single Programming Electronic Thermostat - Control electric heating units with or without fans - 2-wire connection - 120/208/240 Volts - Backlighted 3000 Watts/240 Volts - (White)

    STELPRO626296187838

    $33.60

    Stock: 0

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  24. T822K1018/U Stelpro T822K1018U Series
    Stelpro low voltage thermostat. (T822K1018U). 24 Volts. 2-wire connection. compatible with all RE and R841 model relays - White L.V. T822 W/O Mercury (°F)

    STELPRO626296186534

    $35.35

    Stock: 0

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  25. TG511A1000 Universal Thermostat Guard
    Stelpro Universal Thermostat Guard (TG511A1000). Clear plastic. Tumbler lock (keys included). Can be installed without removing the thermostat from the wall

    STELPRO626296115411

    $34.65

    Stock: 0

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  26. RE306C Triac Relay
    Stelpro Triac Relay W/O Trans 30A/600 Volts - (Remote)

    STELPRO626296105979

    $161.00

    Stock: 0

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  27. RE253T Triac Relay
    Stelpro Triac Relay C/ Watts - Trans 25A/208 - 347 Volts - (Remote)

    STELPRO626296105955

    $61.60

    Stock: 0

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  28. RE253C Triac Relay
    Stelpro Triac Relay W/O Trans 25A/208 - 347 Volts - (Remote)

    STELPRO626296105948

    $53.55

    Stock: 0

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  29. RE153T Stelpro RE153 Series
    Stelpro Triac Low Voltage Smaller Sized Electronic Relay W/Trans 208 - 347 Volts - 15A

    STELPRO626296105931

    $55.30

    Stock: 0

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  30. RE156 Triac Electric Rel. 600V 6A
    Stelpro Triac Elect. Rel. 600 Volts - 6A

    STELPRO626296105924

    $75.25

    Stock: 0

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