{"product_id":"knurr-4-post-open-frame-rack-42u","title":"Knurr 4-Post Open Frame Rack — 42U","description":"\u003ch2\u003eKnurr 4-Post Open Frame Rack — 42U\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eKnurr 4-Post Open Frame Rack — 42U\u003c\/strong\u003e, manufactured by Extron, delivers maximum accessibility and cable management flexibility for networking, patch panel, and switch installations where enclosed cabinetry is not required. Engineered for structured-cabling MDF rooms, open data halls, and network equipment rooms, this rack provides the open-access convenience of a 4-post design with the structural integrity expected from the Knurr product line.\u003c\/p\u003e\u003ch3\u003eAdjustable-Depth Rail System\u003c\/h3\u003e\u003cp\u003eFour vertical \u003cstrong\u003eextruded-aluminum posts\u003c\/strong\u003e support adjustable-depth front and rear 19\" mounting rails spanning \u003cstrong\u003e600 to 1,000 mm of usable internal depth\u003c\/strong\u003e, accommodating both shallow 1U patch panels and deep 4U appliances in the same rack without compromise. All 19\" mounting positions comply with \u003cstrong\u003eIEC 60297-2 and EIA-310-D\u003c\/strong\u003e spacing standards.\u003c\/p\u003e\u003cimg src=\"generation:\/\/d78bdad4-7a13-446d-8321-b401f2aee018\" alt=\"Knurr 4-Post Open Frame Rack 42U — Studio shot showing open sides, adjustable rails, and leveling feet\" style=\"max-width:100%;margin:16px 0;\"\u003e\u003cp\u003e\u003cem\u003eStudio shot: Knurr 42U 4-post open frame rack showing open sides, adjustable rails, and leveling feet.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eHigh Load Capacity\u003c\/h3\u003e\u003cp\u003eRated for a \u003cstrong\u003estatic load of 5,000 N (≈ 510 kg)\u003c\/strong\u003e, this rack handles fully populated patch panel and switching deployments with ease. Adjustable leveling feet provide stability on uneven raised floors, and the \u003cstrong\u003eRAL 7021 dark-grey powder-coat finish\u003c\/strong\u003e on all steel crossbar members ensures long-term durability in demanding environments.\u003c\/p\u003e\u003ch3\u003eReady to Deploy\u003c\/h3\u003e\u003cp\u003eThe rack ships complete with \u003cstrong\u003eM6 cage nuts\u003c\/strong\u003e, adjustable leveling feet, and all hardware required for immediate installation. The open-frame design allows unrestricted cable routing from any direction — top, bottom, front, rear, or sides — dramatically simplifying structured-cabling installations.\u003c\/p\u003e\u003cimg src=\"generation:\/\/c21ed1cb-78bf-40b0-bd59-95f59bf273a0\" alt=\"Knurr 4-Post Open Frame Rack 42U — Densely populated with patch panels and switches in a structured-cabling MDF room\" style=\"max-width:100%;margin:16px 0;\"\u003e\u003cp\u003e\u003cem\u003eIn-use installation: Knurr 42U 4-post rack densely populated with patch panels and network switches in a structured-cabling MDF room with cable ladder overhead.\u003c\/em\u003e\u003c\/p\u003e\u003cimg src=\"generation:\/\/dd3eddcf-316e-4ac6-beb3-c2facbe2d8d6\" alt=\"Knurr 4-Post Open Frame Rack 42U — Close-up of adjustable-depth rail slide, M6 cage nut, and U-number laser-etched markings\" style=\"max-width:100%;margin:16px 0;\"\u003e\u003cp\u003e\u003cem\u003eDetail shot: Adjustable-depth rail slide mechanism, M6 cage nut, and U-number laser-etched markings on the aluminum post.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color:#f0f0f0;\"\u003e\n\u003cth style=\"text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight (U)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRail Depth Adjustment Range (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 – 1,000 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatic Load Rating (N \/ kg)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5,000 N \/ ≈ 510 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePost Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExtruded aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRail Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel (M6 threaded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish \/ RAL Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePowder-coated \/ RAL 7021 Dark Grey (crossbar members)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Hardware Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM6 cage nuts, adjustable leveling feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandards Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEC 60297-2, EIA-310-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Extron","offers":[{"title":"Default Title","offer_id":43427636871286,"sku":null,"price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/7987\/3142\/files\/image_d6771cf2-3aad-4a51-a9fb-d1156940af37.png?v=1779211848","url":"https:\/\/exlogistix.com\/products\/knurr-4-post-open-frame-rack-42u","provider":"Extron Logistics LLC","version":"1.0","type":"link"}