{"product_id":"thermostat-wire-20-gauge-cable-20-awg-solid-bare-copper-cmr-pvc-brown","title":"Thermostat Wire 20AWG Solid Bare Copper CMR Brown – 2 5 6 8 Conductors","description":"\u003cp\u003eInstall thermostat and HVAC control wiring in walls and risers with this 20AWG solid bare copper thermostat wire, rated CMR \/ FT4 and C(ETL)US Listed for code-compliant permanent installations in residential and commercial buildings. The 20AWG gauge is ideal for systems with shorter runs or lower current requirements — a practical, cost-effective option when 18AWG is more than your system needs.\u003cbr\u003e\u003cbr\u003eAvailable in four conductor counts to match your system. The sunlight-resistant brown PVC jacket is the recognized industry standard color for thermostat wire, resistant to UV exposure, moisture, and temperature changes for both indoor and outdoor exposed runs. Color-coded conductors simplify wiring at every terminal. Each reel is clearly marked for easy identification on the job.\u003cbr\u003e\u003cbr\u003eC(ETL)US Listed · CMR \/ FT4 · CL2 \/ CL2R · Sunlight Resistant\u003cbr\u003e\u003cbr\u003eCommon Specifications (all variants):\u003cbr\u003e• Cable Type: Thermostat Wire, Riser (CMR)\u003cbr\u003e• Conductor: Solid Bare Copper, 20AWG\u003cbr\u003e• Insulation: Color-coded PVC\u003cbr\u003e• Jacket: CMR-rated PVC, Brown, Sunlight Resistant\u003cbr\u003e• Standards: CL2 \/ CL2R, CMR \/ FT4\u003cbr\u003e• Certifications: C(ETL)US Listed\u003cbr\u003e\u003cbr\u003eConductor variants, OD, and recommended applications:\u003cbr\u003e• 20\/2 (0.172 in. OD, 500ft) — White\/Red — Basic heating, doorbells, simple controls\u003cbr\u003e• 20\/5 (0.224 in. OD, 500ft or 250ft) — Blue\/Green\/White\/Red\/Yellow — Heat pumps, 5-wire systems\u003cbr\u003e• 20\/6 (0.191 in. OD, 250ft) — Blue\/Green\/White\/Red\/Yellow\/Brown — Multi-stage HVAC, emergency heat\u003cbr\u003e• 20\/8 (0.256 in. OD, 250ft) — 8 color-coded — Smart thermostats, zoned HVAC systems\u003cbr\u003e\u003cbr\u003eNote: For longer runs or high-current HVAC applications such as heat pump compressors, use 18AWG thermostat wire.\u003c\/p\u003e","brand":"Big-A-Cables","offers":[{"title":"2 Conductors \/ 500 Feet","offer_id":46005902835946,"sku":"4088-Big","price":118.5,"currency_code":"USD","in_stock":true},{"title":"5 Conductors \/ 250 Feet","offer_id":46005902868714,"sku":"4090-Big","price":118.5,"currency_code":"USD","in_stock":true},{"title":"5 Conductors \/ 500 Feet","offer_id":46005902901482,"sku":"4089-Big","price":118.5,"currency_code":"USD","in_stock":true},{"title":"6 Conductors \/ 250 Feet","offer_id":46005902934250,"sku":"4091-Big","price":118.5,"currency_code":"USD","in_stock":true},{"title":"8 Conductors \/ 250 Feet","offer_id":46005902967018,"sku":"4092-Big","price":118.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6388\/8618\/files\/377386.jpg?v=1778278227","url":"https:\/\/bigacables.com\/products\/thermostat-wire-20-gauge-cable-20-awg-solid-bare-copper-cmr-pvc-brown","provider":"Big-A-Cables","version":"1.0","type":"link"}