{"product_id":"syston-18-4-thermostat-doorbell-hvac-control-cable-solid-copper-300v","title":"Syston 18\/4 Thermostat Doorbell HVAC Control Cable - Solid Copper 300V","description":"\u003cp\u003eIn this review the Syston 18\/4 thermostat cable is evaluated for homeowners, installers, and DIYers who need a dependable low-voltage wiring option for HVAC, doorbells and security systems. The bottom line: this cable stands out because it uses 100% solid pure copper conductors and a CL3R\/FT4\/CMR riser-rated jacket, which together deliver reliable conductivity and a higher safety margin for typical thermostat and signal wiring tasks.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e18 AWG, 4 conductors:\u003c\/strong\u003e Provides the right gauge and multiple conductors for thermostat circuits, doorbells and remote control wiring without needing multiple cables.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e100% solid copper conductors:\u003c\/strong\u003e Ensures consistent conductivity and long-term reliability compared with copper-clad alternatives.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e300V CL3R\/FT4\/CMR rating:\u003c\/strong\u003e Offers a safety margin for low-voltage installations while meeting Class 3 power-limited standards for many HVAC and A\/V uses.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSunlight resistant jacket:\u003c\/strong\u003e Suitable for indoor or outdoor runs where exposure to sunlight is possible, reducing premature degradation.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eInstallation-friendly design:\u003c\/strong\u003e Round slick jacket with smooth edges and a rip cord makes pulling through conduits and stripping easier on the job.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRoHS compliant:\u003c\/strong\u003e Meets environmental safety requirements for lead and hazardous material restrictions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eElectricians, HVAC technicians and homeowners who install thermostats, doorbells, annunciators or burglar alarm systems will appreciate this cable for routine low-voltage wiring where solid copper conductors and riser-rated insulation are preferred. It is a practical choice when lasting conductivity and a robust jacket for occasional outdoor exposure are needed.\u003c\/p\u003e\n\u003cp\u003eThose who need multi-conductor cables for high-current runs or mains wiring should look elsewhere, since this is intended for low-voltage, Class 3 applications up to 300V. If a shielded cable or different conductor gauge is required for a specific control or audio application, select the matching specification instead.\u003c\/p\u003e\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 deliver reliable electrical performance and compatibility with thermostats and doorbells.\u003c\/li\u003e\n \u003cli\u003eRiser-rated 300V jacket and CL3 classification provide an added safety margin for installed low-voltage systems.\u003c\/li\u003e\n \u003cli\u003eSunlight resistance and RoHS compliance make it suitable for a range of indoor and outdoor uses while meeting environmental standards.\u003c\/li\u003e\n \u003cli\u003eEasy to pull and strip thanks to a slick round jacket and built-in rip cord, speeding installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eInsulation thickness opinions vary among users; some find it thicker than cheaper alternatives which can make fine routing slightly stiffer.\u003c\/li\u003e\n \u003cli\u003eNot intended for high-voltage or shielded signal applications, so it is limited to low-voltage uses only.\u003c\/li\u003e\n\u003c\/ul\u003e\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, 4 conductors (18\/4)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eVoltage rating\u003c\/td\u003e\n\u003ctd\u003e300V (CL3 rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eJacket rating\u003c\/td\u003e\n\u003ctd\u003eCL3R \/ FT4 \/ CMR riser-rated\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSunlight resistance\u003c\/td\u003e\n\u003ctd\u003eUL 1581 sunlight resistant for outdoor use\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eEnvironmental compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Syston 18\/4 thermostat cable is a sensible, cost-effective pick for anyone wiring thermostats, doorbells, alarms or intercoms who wants solid copper conductors and a riser-rated jacket. Its combination of 18 AWG solid copper, 300V CL3 rating and sunlight resistance makes it a practical long-term solution for most low-voltage residential and light commercial installations.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this cable suitable for outdoor runs?\u003c\/strong\u003e\u003cbr\u003eYes, the jacket meets UL sunlight resistance requirements and is designed for both indoor and outdoor low-voltage installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this for thermostat and doorbell wiring?\u003c\/strong\u003e\u003cbr\u003eYes, the 18\/4 configuration and solid copper conductors are well suited for thermostats, doorbells and similar signal\/control uses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the cable fire rated for riser applications?\u003c\/strong\u003e\u003cbr\u003eYes, it carries CL3R, FT4 and CMR riser-rated classifications appropriate for riser pathways in buildings.\u003c\/p\u003e","brand":"Syston Cable Technology","offers":[{"title":"Default Title","offer_id":48635285274843,"sku":"B0BR6652NV","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/514Bs82Cp8L._SL1500_c3b145ba-e059-46d3-81b3-259c812bb459.jpg?v=1778609748","url":"https:\/\/gearmusthave.com\/products\/syston-18-4-thermostat-doorbell-hvac-control-cable-solid-copper-300v","provider":"GearMustHave","version":"1.0","type":"link"}