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250 ft brown 18/8 thermostat wire with eight 18 AWG solid CCA conductors

250 ft 18/8 Thermostat Wire – 18 AWG Solid CL2 CCA, Brown

Regular price $94.99
Sale price $94.99 Regular price $109.99
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250 ft 18/8 Thermostat Wire for HVAC and Low-Voltage Controls

This 250 ft 18/8 low-voltage thermostat wire contains eight solid 18 AWG Copper-Clad Aluminum conductors inside a durable brown PVC jacket. The 8-conductor cable is designed for compatible 24 VAC thermostat and HVAC control systems, as well as alarm, doorbell, security-panel, and similar low-voltage applications.

The 18/8 designation means that the cable contains eight individually insulated 18-gauge conductors. The additional conductors make it suitable for more advanced HVAC systems that may require connections for heating, cooling, fan control, common wire, heat pumps, auxiliary heat, humidifiers, or other accessories. Always confirm the required conductor count with the equipment manufacturer before installation.

Key Features

  • 250 ft cable length
  • Eight 18 AWG conductors
  • Solid Copper-Clad Aluminum construction
  • Brown PVC outer jacket
  • CL2-rated low-voltage cable
  • Unshielded construction
  • Integrated ripcord
  • Supplied on a wooden spool
  • RoHS compliant

Common Applications

This 18/8 low-voltage control wire can be used for compatible:

  • Thermostats and HVAC controls operating on typical 24 VAC low-voltage systems
  • Heating and air-conditioning systems
  • Heat pumps and multi-stage HVAC equipment
  • Doorbells and intercom controls
  • Burglar and security alarm systems
  • Low-voltage LED control circuits

Frequently Asked Questions

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What does 18/8 thermostat wire mean?

18/8 means the cable contains eight individually insulated 18 AWG conductors.

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