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Line & Low Voltage Thermostats, Relays & Transformers, Industrial/Commercial Space Thermostats, Plug In Inline Thermostats, Thermostat Wire
We are an authorized distributor for Honeywell and other leading thermostat manufacturers.
- Line voltage thermostats are typically used for electric radiant, convection or resistance heaters such as baseboard, cove and wall heaters.
- Low voltage thermostats are used with central heating systems including furnaces, boilers, air conditioning, heat pumps and split systems. The wires aren’t as thick as you’ll find on line-voltage stats.
If you’re replacing a thermostat you can check which one you need by looking at your wiring. Line-voltage thermostats have two or four thick wires coming out of the back that are attached with wire nuts to wires in the wall. The wires are much larger than the wires on low-voltage thermostats.
- Line Voltage Thermostats - 120, 208, 240 Volts - Digital or Mechanical - Programmable or Non-Programmable
- Low Voltage Thermostats - Programmable or Non-Programmable - mV to 24V & 30 VAC
- Relays and Transformers (Electromechanical and Solid state)
- Chromalox Bulb & Capillary thermostats use expanding liquid to open or close contacts in response to temperature changes
- Industrial/Commercial Space Thermostats - Line Voltage
- Plug In Inline Thermostats - Sensors detect & control temperature changes with piggyback plug or receptacle
- Thermostat Guards. Clear plastic or metal. Locking
- Thermostat Wire - 18 Ga or 20 Ga - 4 or 5 Conductor
- M600S Two Circuit Ivory ThermostatRobertshaw Climate/Mears Line Voltage Wall Mount Thermostat - Simultaneous switching (double circuit) - 45F to 75F - Accuracy Within 3F of setpoint - Simultaneous control of two heating loads.
MEARS10013
- M600SW Two Circuit White ThermostatRobertshaw Climate/Mears Line Voltage Wall Mount Thermostat - Two Circuit - Each Switch 22 AMPS - Simultaneous switching control of two heating loads (double circuit) - 45F to 75F - Accuracy Within 3F of setpoint
MEARS10018
- M601TPW Tamper Resistant ThermostatQmark/Marley Mears Line Voltage Thermostat - 22 Amps at 120/208/240 Volts & 18 Amps at 277 Volts - 1-Pole, White - Snap action - Differential 4 Degrees - 45 to 75 deg F -
QMARK98319841490
- M602-25 DP Thermostat IvoryRobertshaw Climate/Mears Line Voltage DPST wall mount thermostat, 45°F to 75°F, 25 amp 208/240V. Heavy Duty - Off Position - 25 AMP Switches (2 Switches, Each switch is 25 AMPS) Ivory/Beige - Double Pole
MEARS10015
- M612W DoublePole Thermostat WhiteDPST wall mount thermostat, built-in heat anticipator, 45°F to 75°F, 22 amp 208/240V, 18 amp 277V
QMARK98319841568
- MD26 DoublePole Thermostat WhiteDPST wall mount thermostat, 45°F to 75°F, 22 amp 208/240V, 18 amp 277V
QMARK98319841681
- MS26 Single Pole Thermostat WhiteSPST wall mount thermostat, 45°F to 75°F, 22 amp 120V
QMARK98319841674
- Mysa Electric Baseboard Thermostat V2Mysa Smart WiFi & NFC Thermostat for Electric Baseboard Heaters V2 - 120-240V - Also for fan-forced heaters - Adaptive Display Technology - Audible Touch Feedback - Mechanical relay control - 3800 watts at 240V - 5.1" x 3.5" x 0.8"
MYSA821661113898
- Mysa Smart Thermostat for In-Floor HeatMysa Smart WiFi Thermostat for Electric In-Floor Heating - Includes Class A GFCI and floor temperature sensor - 3,800 watts at 240V / 1900W max @ 120V - Compatible with most high voltage electric in-floor heating systems
MYSA821661208273
- Mysa Thermostat for AC & Mini-SplitsMysa Smart WiFi Thermostat for AC and Mini-Split Heat Pumps - Replaces most LCD remotes for window, portable, and ductless mini-split heat pump AC units - Includes 5V micro USB connection, 6 foot cable and plug-in AC adapter
MYSA821661307129
- R841D1036/U Two Wire 24V RelayHoneywell Electric Heater Relay - Use with 24 Vac thermostat to control electric heating equipment such as baseboard, ceiling cable & duct heaters - SPST Switching - requires transformer - switches up to a 5,000 W load
HONEYWELL10063
- R841E1068 Honeywell Electric Heat Relay24 Volt Electric Heater Relay with SPST switching. Use with two-wire, 24 Vac thermostat to control electric heating equipment such as baseboard heaters. Switches up to a 5,000 W load (at 240/277V) - 22A @ 120 Vac, 208 Vac, 240 Vac; 19A @ 277 Vac Resistive
HNYWL10008
- RC840T-120 Electromechanical RelayHoneywell Aube electromechanical relay with 24V-120V transformer. Compatible with 2 & 3-wire thermostats - all-in-one relay includes a built-in 24 V transformer. Compatible with 24V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C)
HONEYWELL10022
- RK124EAA Low Voltage StatTPI Corp. (Markel/Raywall/Fostoria) No Mercury - Leveling not required - Long life sealed contacts - Fahrenheit & Celsius temperature scales - 2-3F rated differential - cUL Listed 35-75* F temp range - Catalog #: 05262002
MARKEL526203
- RK130EAA Low Voltage Tstat 50-90FTPI (Markel/Raywall/Fostoria) Milivolt, Max 1 Amp, RK LowVage Heat Only Mercury Free Thermostat for Millivolt Systems 50-90F, Positive off, Does not contain Mercury, Fahrenheit & Celsius temperature scales, 2-3F rated differential, UL listed, Cat. # 052
MARKEL526050
- RK134EAA Low Volt Wall ThermostatTPI Corp. (Markel/Raywall/Fostoria) RK Series Low Voltage Thermostats - Heat Only Milivolt Low Volt - Wall Thermostat - Catalog #: 05263202
MARKEL526326
- RKWP1AA Wall Plate for RK Series StatTPI Corp. (Markel/Raywall/Fostoria) RK Series Low Voltage Thermostats Accessory - Wall Plate for RK Series Thermostat - Catalog #: 05261402
MARKEL526142
- S2022H10AA Single Pole 22 Amp White StatTPI Corp. (Markel/Raywall/Fostoria) Series 2000 Line Voltage Thermostat - White - 22 Amp - Single Pole with leads - Heat Only - 277 Volts AC - Catalog #: 05028402
MARKEL502849
- S2025H10AA 25A Wall ThermostatTPI Corp. (Markel/Raywall/Fostoria) 25 amp Line Voltage - Heat Only - single pole - White - 120V to 277V Operating Voltage - 50F to 90F Temperature Range - Catalog #: 05029102
MARKEL502917
- SAHUB001 Allia Smart Home HubStelpro Hub Controls your heating, lighting, smoke detector and more compatible Zigbee devices with your Stelpro iOS or Android Allia app - White Molded plastic Finish - Install with 120 V outlet and Ethernet cable
STELPRO626296674550
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- SL-2G 120V 1440W Thermostat/ReceptacleEasyHeat SL-2G Series Thermostat - Adjustable Range (36-77 Deg. F.) - Contains Duplex Receptacle (120 Volt - 1440 Watt/12 Amp Capacity) - 4 Foot Three Wire Cord and Plug - Not for Motors or Capacitive Loads
EASY10201
- STE302R2W+ Thermostat Relay 3kW/240VStelpro 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
- STE402PW24 Thermostat 4kW/240VStelpro STE402P+ Series 4000 Watt Multiple Programming Electronic Thermostat - 120/208/240 Volts - 2-wire connection - Compatible with forced-air units - 4000 Watts/240 Volts - (White)
STELPRO626296179345
- SWT2F Thermostat DP 120-277V 22AStelpro 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
- T410B1004 120-277V DPST ThermostatHoneywell - 22 Amp at 120/208/240V or 19 Amp at 277V - White - Line voltage control of resistive rated electric heating equipment - 6 in copper leadwires - 40 F to 80 F - White - Positive OFF - Non-Progr.
HONEYWELL10056
- T4398B1029/U White DPST ThermostatHoneywell 22 amp 120-240V - Premier White High Performance Electric Heat Thermostat - No inductive resistive 22A at 120/208/240 Vac. 19A at 277 Vac.
HONEYWELL10051