{"product_id":"syston-18-2-shielded-plenum-alarm-control-cable-cmp-rated","title":"SYSTON 18\/2 Shielded Plenum Alarm Control Cable - CMP Rated","description":"\u003cp\u003eIn this review of the SYSTON 18\/2 Shielded Plenum Alarm Control Cable the bottom line is straightforward: this cable is aimed at installers and facility managers who need a reliable, low-voltage control wire that can be run in plenum spaces. The reviewer found the single biggest reason to buy is the combination of stranded pure copper conductors with aluminum foil shielding and a CMP plenum rating, which together deliver consistent signal performance and the safety to install in air-handling spaces. This makes it a practical choice for fire alarm, security, and other power-limited circuits.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlenum-Rated CMP:\u003c\/strong\u003e The CMP\/CL3P\/FT6 flame retardant construction allows safe installation in building plenums and ceiling return-air spaces without compromising safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStranded Pure Copper Conductors:\u003c\/strong\u003e Stranded bare copper cores provide good conductivity and flexibility, making the cable easier to route in tight runs than solid conductors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum Foil Shielding:\u003c\/strong\u003e A full aluminum foil shield reduces electromagnetic interference, keeping signals clear for alarms, intercoms, and access control wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300V CL3 Rating:\u003c\/strong\u003e The 300V insulation and CL3 classification ensure this cable meets Class 3 power-limited circuit requirements for low-voltage systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Application Support:\u003c\/strong\u003e Designed for fire alarms, burglar stations, public address, telephone, nurse call, and other low-voltage communication or control uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV Resistant Jacket:\u003c\/strong\u003e The outer jacket resists UV exposure for short-term outdoor routing or protection in exposed areas while maintaining flexibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis cable is best for professional electricians, AV installers, security contractors, and building maintenance teams who need a code-compliant cable for plenum spaces and power-limited systems. It is particularly useful where shielding is important to avoid interference from nearby electrical runs or equipment.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for heavy power distribution, outdoor direct burial, or applications that require thicker gauge conductors for higher current. Hobbyists expecting a very thick cable should note some users describe the jacket and conductor bundle as relatively thin compared with larger power cables.\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\u003eGood signal integrity from the aluminum foil shield that blocks EMI for sensitive communication circuits.\u003c\/li\u003e\n\u003cli\u003eFlexible stranded copper conductors make routing through conduits and panels easier than solid wire.\u003c\/li\u003e\n\u003cli\u003eHigh safety margin with CMP plenum rating and 300V insulation for low-voltage installations in air-handling spaces.\u003c\/li\u003e\n\u003cli\u003eVersatile for many low-voltage systems including alarms, intercoms, and access control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers report the cable feels thinner than expected, which can be a limitation if a heavier duty jacket or larger conductor is required.\u003c\/li\u003e\n\u003cli\u003eNot intended for direct burial or high-voltage applications, so additional protection is required for harsh outdoor use.\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\u003eStranded bare copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePair\/Size\u003c\/td\u003e\n\u003ctd\u003e18\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShielding\u003c\/td\u003e\n\u003ctd\u003eAluminum foil full shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRating\u003c\/td\u003e\n\u003ctd\u003eCMP \/ CL3P \/ FT6 (Plenum-Rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e300V (CL3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eFire alarm, security, PA, intercom, telephone, access control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe SYSTON 18\/2 Shielded Plenum Alarm Control Cable is a practical, code-minded choice for professionals installing low-voltage, power-limited systems in buildings with plenum space runs. Its stranded copper conductors and full foil shielding deliver reliable signal performance, and the CMP rating adds an important safety advantage. For those needing a thicker jacket or outdoor burial cable, a different product would be better, but for indoor plenum and protected outdoor routing this cable offers solid value.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this cable be run in ceiling plenums?\u003c\/strong\u003e\u003cbr\u003eYes, it is CMP plenum-rated and designed for use in air-handling spaces and return-air plenums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the cable shielded against interference?\u003c\/strong\u003e\u003cbr\u003eYes, a full aluminum foil shield reduces electromagnetic interference to protect signal integrity in sensitive circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used for outdoor direct burial?\u003c\/strong\u003e\u003cbr\u003eNo, it is not intended for direct burial; use protective conduit or select a cable rated for outdoor burial for those installations.\u003c\/p\u003e","brand":"Syston Cable Technology","offers":[{"title":"Default Title","offer_id":48674995994843,"sku":"B0BXFQXWDJ","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61-uwZxvCZL._SL1500_50adaae0-3cc4-46e5-adb4-4c9a17b36583.jpg?v=1778711706","url":"https:\/\/gearmusthave.com\/products\/syston-18-2-shielded-plenum-alarm-control-cable-cmp-rated","provider":"GearMustHave","version":"1.0","type":"link"}