Thermostat wire, All Sizes

Solid conductor control wire for thermostats, doorbells and HVAC controls, color coded under a brown or white jacket. Thermostat wire is power-limited Class 2 cable under NEC Article 725 for heating and cooling controls.

We list 17 sizes of Thermostat wire, from 20/2 to 18/12. 16 of them are priced online, from $0.0963/ft; the rest are quoted on request. Sold on standard spools and coils. Up to 2 colors are listed per size. Each size has its own page with the price for every color and length, the date an order placed now ships, and the full specifications.