{"product_id":"18-awg-thermostat-cable-cl3r-ft4-300v-solid-copper-jacketed","title":"18 AWG Thermostat Cable CL3R\/FT4 300V - Solid Copper Jacketed","description":"\u003cp\u003eIn this review the Syston 18 AWG thermostat cable is assessed for homeowners, HVAC installers and hobby electricians who need a reliable, low-voltage wiring option. The bottom line: it is a straightforward, value-minded cable for thermostat, doorbell and security wiring where solid copper conductors and a riser-rated jacket matter most. The review highlights where it excels - conductivity, ease of pull and outdoor sunlight resistance - and notes the only real caveat is the thin insulation some users described, which means careful handling during installation.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid Copper Conductors:\u003c\/strong\u003e Solid pure copper cores deliver consistent conductivity and stable signal or power delivery for thermostats and low-voltage control circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300V CL3R Rating:\u003c\/strong\u003e A 300V, Class 3 riser-rated jacket gives a higher safety margin for low-voltage control and signal applications in walls and riser runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation-Friendly Jacket:\u003c\/strong\u003e The round slick jacket and smooth edges make the cable easier to pull through tight bends and conduit, and the included rip cord speeds jacket removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSunlight Resistant:\u003c\/strong\u003e UV-resistant construction meets sunlight resistance requirements for outdoor runs where thermostat or doorbell wiring may be exposed briefly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Low-Voltage Use:\u003c\/strong\u003e Suitable for thermostats, doorbells, annunciators, intercoms and other control or signal systems that rely on 18 AWG wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis cable is best for homeowners doing thermostat or doorbell upgrades, HVAC technicians wiring control circuits, and installers needing a CL3R\/FT4 riser-rated cable for indoor or limited outdoor low-voltage use. The solid copper conductors and 300V rating make it a practical choice when signal integrity and a code-recognized rating are desired.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for heavy outdoor burial applications or where stranded cable is preferred for repeated flexing; installers who need flexible multi-strand conductors or direct-burial rated cable should look at alternatives designed specifically for those conditions.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid pure copper conductors provide reliable conductivity for thermostats and signal devices.\u003c\/li\u003e\n\u003cli\u003e300V CL3R\/FT4 riser rating adds a safety margin for low-voltage control wiring in walls and riser spaces.\u003c\/li\u003e\n\u003cli\u003eRound slick jacket with rip cord makes pulling and stripping the cable straightforward during installs.\u003c\/li\u003e\n\u003cli\u003eUV resistance and RoHS compliance allow for short outdoor exposures and environmentally safer materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report the insulation feels thin and requires careful handling to avoid nicks during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductor\u003c\/td\u003e\n\u003ctd\u003e100% solid copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGauge\u003c\/td\u003e\n\u003ctd\u003e18 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e300V (CL3R\/FT4\/CMR riser-rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eThermostats, doorbells, alarms, intercoms, annunciators, control and signal systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor Use\u003c\/td\u003e\n\u003ctd\u003eSunlight resistant (UV resistant) for limited outdoor exposure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Features\u003c\/td\u003e\n\u003ctd\u003eRound slick jacket with rip cord for easy stripping and pulling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eUL\/ETL listed, RoHS compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor routine thermostat, doorbell and low-voltage control wiring this 18 AWG solid copper cable is a practical, cost-conscious choice that balances conductivity, a CL3R safety rating and installation convenience. Installers who handle the cable with standard care will find it good value for home HVAC and security wiring, while applications needing flexible or direct-burial cable should consider specialized alternatives.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this cable be used outdoors?\u003c\/strong\u003e\u003cbr\u003eYes, it is sunlight resistant for short outdoor exposure, but it is not specified as direct-burial; use conduit or rated cable for extended outdoor or buried runs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this cable suitable for thermostat and doorbell wiring?\u003c\/strong\u003e\u003cbr\u003eYes, the 18 AWG solid copper conductors and 300V CL3R rating make it well suited for thermostats, doorbells and other low-voltage control systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow easy is it to strip and install?\u003c\/strong\u003e\u003cbr\u003eThe round slick jacket and rip cord make pulling and stripping straightforward, and many users find it strips easily with an 18 gauge stripper.\u003c\/p\u003e","brand":"Syston Cable Technology","offers":[{"title":"Default Title","offer_id":48608903659739,"sku":"B0F4QXTNDR","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61CwXaxvKwL._SL1500_695da475-894e-4c37-84c5-942d8b9cbae6.jpg?v=1778579568","url":"https:\/\/gearmusthave.com\/products\/18-awg-thermostat-cable-cl3r-ft4-300v-solid-copper-jacketed","provider":"GearMustHave","version":"1.0","type":"link"}