{"product_id":"3m-fire-barrier-putty-sleeve-kit-dt-200-2in-round","title":"3M Fire Barrier Putty Sleeve Kit DT 200 2in Round","description":"\u003cp\u003e\u003cstrong\u003e3M Fire Barrier Putty Sleeve Kit DT 200 is a ready-to-install 2-inch round firestop sleeve that helps seal cable penetrations against the spread of fire and smoke in walls and floors.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit is designed for both new-build and retrofit installations where data and telecommunications cables pass through rated assemblies. Tested for up to 4 hours in through-penetration systems (ASTM E814 \/ UL 1479), the DT 200 sleeve combines a molded putty liner and a rolled lip sleeve to simplify cable routing while maintaining firestop performance without a separate gasket.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the DT 200 sleeve keep cable penetrations secure during a fire?\u003c\/h3\u003e\n\u003cp\u003eThe sleeve uses intumescent putty and a fitted bracket system to block fire and smoke movement through openings created for cables. Under heat, the putty expands to fill voids around cables and the sleeve, helping restore compartmentation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTested up to 4 hours per ASTM E814 (UL 1479).\u003c\/li\u003e\n  \u003cli\u003ePutty liner expands under heat to seal gaps around cables.\u003c\/li\u003e\n  \u003cli\u003eBracketed sleeve holds position in wall or floor assemblies.\u003c\/li\u003e\n  \u003cli\u003eRolled lip eases cable entry and reduces damage risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this work for new installations and retrofits?\u003c\/h3\u003e\n\u003cp\u003eYes — the kit is built to accommodate both fresh installs and existing cable runs so you don't need to rework cabling. The sleeve accepts live cables, so technicians can add firestopping without disconnecting active telecom or data lines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for retrofit use around existing cable bundles.\u003c\/li\u003e\n  \u003cli\u003eNo gasket required, shortening installation time.\u003c\/li\u003e\n  \u003cli\u003eCompatible with typical data and telecom cable diameters.\u003c\/li\u003e\n  \u003cli\u003eBrackets prevent sleeve slippage during retrofit mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the DT 200 installed — do I need special tools or materials?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: position the sleeve in the penetration, secure the brackets to the opening, and route cables through the rolled lip. No separate gasketing or complex components are required, though follow the manufacturer's instructions for fire-rated assemblies and sealing practices.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReady-to-install kit includes sleeve and mounting brackets.\u003c\/li\u003e\n  \u003cli\u003eRolled-out lip supports clean cable entry and reduces abrasion.\u003c\/li\u003e\n  \u003cli\u003eSimple mechanical fixings secure the sleeve in place.\u003c\/li\u003e\n  \u003cli\u003eNo additional gasket or sealant is necessary for the rated system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I verify before specifying this product?\u003c\/h3\u003e\n\u003cp\u003eConfirm wall or floor assembly ratings and the allowed cable types and bundle sizes for the tested system. Ensure compatibility with your building's firestop design and reference the applicable UL\/ASTM listings to match the required through-penetration rating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck UL 1479\/ASTM E814 listing details for assembly constraints.\u003c\/li\u003e\n  \u003cli\u003eVerify maximum cable bundle diameter for the 2-inch sleeve.\u003c\/li\u003e\n  \u003cli\u003eConfirm mounting method fits your wall or floor construction.\u003c\/li\u003e\n  \u003cli\u003eFollow local code and firestop inspection requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The 3M Fire Barrier Putty Sleeve Kit DT 200 is suited to contractors, low-voltage technicians, facilities teams, and specifiers who need a reliable, code-tested firestop solution for data and telecom cable penetrations. It’s ideal where quick retrofit installation, minimal downtime, and a tested fire-rating are required — such as communications rooms, office fit-outs, multi-tenant buildings, and renovation projects where active cabling must remain in place.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the DT 200 be used on live data cables without disconnecting them?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit supports retrofit installations and allows installation around live cables without disconnecting telecom or data lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What fire-resistance rating does this sleeve provide?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The sleeve is tested for up to 4 hours in through-penetration fire tests per ASTM E814 (UL 1479); confirm applicable assembly listings for specifics.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":48413420945565,"sku":"B0056JBJZU","price":73.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/3m-dt200-front-packaging.jpg?v=1781264707","url":"https:\/\/nexoltic.com\/products\/3m-fire-barrier-putty-sleeve-kit-dt-200-2in-round","provider":"Nexoltic","version":"1.0","type":"link"}