{"product_id":"southwire-31155512-18-awg-4c-plenum-cable-500-feet","title":"Southwire 31155512 18 Awg 4C Plenum Cable 500 Feet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWIRE 31155512 is an 18 AWG, 4-conductor unshielded multiconductor cable rated for plenum installations. It carries a CMP\/FT6 plenum rating, making it suitable for installation in air-handling spaces where building codes require low-smoke cable. The conductors are stranded bare copper, which provides reliable conductivity and low voltage drop across low-voltage control and signal circuits. The cable ships in a 500-foot coil with countdown length markings printed on the jacket, allowing technicians to track usage and remaining stock without measuring. HVAC controls technicians and low-voltage electricians are the primary installers of this cable type.\u003c\/p\u003e\n\u003cp\u003eThis cable is used in commercial and residential HVAC control wiring, building automation, fire alarm signal circuits, and other low-voltage multiconductor applications where plenum-rated cable is required by the International Mechanical Code or local AHJ. The 4-conductor configuration suits common thermostat, zone control, and sensor wiring layouts. The unshielded construction keeps the cable profile compact and flexible for routing through tight plenum spaces and conduit runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCMP\/FT6 plenum-rated jacket meets code requirements for air-handling plenum spaces\u003c\/li\u003e\n  \u003cli\u003eStranded bare copper conductors provide flexibility and reliable low-voltage conductivity\u003c\/li\u003e\n  \u003cli\u003eLow-smoke PVC insulation and plenum PVC jacket reduce smoke output in fire conditions\u003c\/li\u003e\n  \u003cli\u003eDurable rip cord simplifies jacket stripping during termination\u003c\/li\u003e\n  \u003cli\u003eCountdown length markings allow accurate tracking of remaining cable on the coil\u003c\/li\u003e\n  \u003cli\u003eRated for 300 volts and a temperature range of -20 degrees C to 75 degrees C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use as plenum-rated low-voltage multiconductor cable in HVAC control, building automation, and signal wiring applications where CMP-rated cable is specified.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed low-voltage or journeyman electrician in accordance with NEC Article 800 and applicable local codes. Confirm with the AHJ that CMP rating satisfies the plenum space requirement before pulling cable. De-energize all control circuits before making terminations. Use the built-in rip cord to strip the jacket cleanly and avoid nicking conductor insulation during prep.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConductor Size\u003c\/strong\u003e: 18 AWG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Conductors\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStranding\u003c\/strong\u003e: Stranded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShielding\u003c\/strong\u003e: Unshielded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 300 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Rating\u003c\/strong\u003e: -20 degrees C to 75 degrees C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eJacket Rating\u003c\/strong\u003e: CMP\/FT6 Plenum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConductor Material\u003c\/strong\u003e: Bare Copper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Total Weight\u003c\/strong\u003e: 29 pounds per 1000 feet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Length\u003c\/strong\u003e: 500 feet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SOUTHWIRE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 31155512\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWIRE","offers":[{"title":"Default Title","offer_id":51468238487858,"sku":"31155512","price":238.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313945355.png?v=1783915474","url":"https:\/\/voomisupply.com\/products\/southwire-31155512-18-awg-4c-plenum-cable-500-feet","provider":"Voomi Supply","version":"1.0","type":"link"}