{"product_id":"relay-light-curtain-non-monitored-6-rlc-k72","title":"Relay Light Curtain - Non Monitored 6' RLC-K72","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast shipping — same-day on orders before 4:30 PM EST\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003ch2 data-end=\"60\" data-start=\"0\" data-section-id=\"1gh8i1j\"\u003eRelay Light Curtain Non-Monitored RLC-K72 (6 ft, 16-Beam)\u003c\/h2\u003e\n\u003cp data-end=\"401\" data-start=\"62\"\u003eThe \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eMiller Edge RLC-K72 Relay Light Curtain\u003c\/span\u003e\u003c\/span\u003e is a \u003cstrong data-end=\"167\" data-start=\"109\"\u003enon-monitored, fail-safe infrared safety light curtain\u003c\/strong\u003e designed for commercial and industrial door applications. It creates a dense vertical detection field that stops or reverses a door when any beam is interrupted, offering significantly broader protection than a single-beam photo eye.\u003c\/p\u003e\n\u003chr data-end=\"406\" data-start=\"403\"\u003e\n\u003ch2 data-end=\"431\" data-start=\"408\" data-section-id=\"olcazc\"\u003eWhat this product is\u003c\/h2\u003e\n\u003cp data-end=\"678\" data-start=\"432\"\u003eThe RLC-K72 is a \u003cstrong data-end=\"504\" data-start=\"449\"\u003e6-foot tall multi-beam photoelectric safety curtain\u003c\/strong\u003e made up of 16 infrared beam pairs. It is commonly used on overhead doors, rolling doors, and high-cycle warehouse entrances where enhanced obstruction detection is required.\u003c\/p\u003e\n\u003cp data-end=\"819\" data-start=\"680\"\u003eIt is a \u003cstrong data-end=\"727\" data-start=\"688\"\u003erelay-output (non-monitored) system\u003c\/strong\u003e, meaning it connects via dry contact (NO\/NC) rather than modern monitored safety protocols.\u003c\/p\u003e\n\u003chr data-end=\"824\" data-start=\"821\"\u003e\n\u003ch2 data-end=\"869\" data-start=\"826\" data-section-id=\"9cngmo\"\u003eKey Features (SEO + AI-search optimized)\u003c\/h2\u003e\n\u003cul data-end=\"1282\" data-start=\"870\"\u003e\n\u003cli data-end=\"907\" data-start=\"870\" data-section-id=\"1opsaap\"\u003e6 ft (72\") vertical coverage area\u003c\/li\u003e\n\u003cli data-end=\"943\" data-start=\"908\" data-section-id=\"mbk4cf\"\u003e16-beam infrared detection grid\u003c\/li\u003e\n\u003cli data-end=\"1013\" data-start=\"944\" data-section-id=\"ts1zoa\"\u003eUp to 32 ft operating range \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1062\" data-start=\"1014\" data-section-id=\"3mslt3\"\u003eFail-safe relay output (NO \/ NC dry contact)\u003c\/li\u003e\n\u003cli data-end=\"1119\" data-start=\"1063\" data-section-id=\"sha88n\"\u003eNon-monitored design for legacy or pre-UL325 systems\u003c\/li\u003e\n\u003cli data-end=\"1160\" data-start=\"1120\" data-section-id=\"1uzcmse\"\u003eIP67-rated weather-resistant housing\u003c\/li\u003e\n\u003cli data-end=\"1203\" data-start=\"1161\" data-section-id=\"iznbei\"\u003eLED alignment \u0026amp; diagnostics indicators\u003c\/li\u003e\n\u003cli data-end=\"1244\" data-start=\"1204\" data-section-id=\"1f1m4dn\"\u003eUniversal mounting brackets included\u003c\/li\u003e\n\u003cli data-end=\"1282\" data-start=\"1245\" data-section-id=\"6y8z8o\"\u003eSuitable for retrofit installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1287\" data-start=\"1284\"\u003e\n\u003ch2 data-end=\"1304\" data-start=\"1289\" data-section-id=\"nysmmy\"\u003eHow it works\u003c\/h2\u003e\n\u003cp data-end=\"1524\" data-start=\"1305\"\u003eThe system forms an \u003cstrong data-end=\"1372\" data-start=\"1325\"\u003einvisible vertical “wall” of infrared beams\u003c\/strong\u003e. When any beam is interrupted—by a person, pallet, forklift, or object—the relay output changes state and signals the door operator to stop or reverse.\u003c\/p\u003e\n\u003cp data-end=\"1637\" data-start=\"1526\"\u003eUnlike a single photo eye, it protects the \u003cstrong data-end=\"1594\" data-start=\"1569\"\u003eentire opening height\u003c\/strong\u003e, not just a low-level zone near the floor.\u003c\/p\u003e\n\u003chr data-end=\"1642\" data-start=\"1639\"\u003e\n\u003ch2 data-end=\"1664\" data-start=\"1644\" data-section-id=\"6pg7yk\"\u003eBest Applications\u003c\/h2\u003e\n\u003cul data-end=\"1864\" data-start=\"1665\"\u003e\n\u003cli data-end=\"1701\" data-start=\"1665\" data-section-id=\"2mhxf6\"\u003eCommercial overhead door systems\u003c\/li\u003e\n\u003cli data-end=\"1729\" data-start=\"1702\" data-section-id=\"1dm10yj\"\u003eWarehouse loading docks\u003c\/li\u003e\n\u003cli data-end=\"1773\" data-start=\"1730\" data-section-id=\"9eyx5z\"\u003eIndustrial and manufacturing facilities\u003c\/li\u003e\n\u003cli data-end=\"1818\" data-start=\"1774\" data-section-id=\"y03zo6\"\u003ePre-2010 or non-monitored door operators\u003c\/li\u003e\n\u003cli data-end=\"1864\" data-start=\"1819\" data-section-id=\"swpeh6\"\u003eRetrofit safety upgrades for legacy systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1869\" data-start=\"1866\"\u003e\n\u003ch2 data-end=\"1893\" data-start=\"1871\" data-section-id=\"1groqrs\"\u003eElectrical Overview\u003c\/h2\u003e\n\u003cul data-end=\"2063\" data-start=\"1894\"\u003e\n\u003cli data-end=\"1923\" data-start=\"1894\" data-section-id=\"1ak22q9\"\u003eInput Power: 12–24V AC\/DC\u003c\/li\u003e\n\u003cli data-end=\"1987\" data-start=\"1924\" data-section-id=\"1vxf9u1\"\u003eOutput: Relay (Normally Open \/ Normally Closed dry contact)\u003c\/li\u003e\n\u003cli data-end=\"2063\" data-start=\"1988\" data-section-id=\"lkw9d6\"\u003eWiring: Simple integration with standard door operator safety terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2068\" data-start=\"2065\"\u003e\n\u003ch2 data-end=\"2097\" data-start=\"2070\" data-section-id=\"1tqwp2\"\u003eWhy installers choose it\u003c\/h2\u003e\n\u003cp data-end=\"2136\" data-start=\"2098\"\u003eThis model is typically selected when:\u003c\/p\u003e\n\u003cul data-end=\"2373\" data-start=\"2137\"\u003e\n\u003cli data-end=\"2191\" data-start=\"2137\" data-section-id=\"crz7fi\"\u003eA full-height safety detection curtain is required\u003c\/li\u003e\n\u003cli data-end=\"2257\" data-start=\"2192\" data-section-id=\"1emu7mq\"\u003eThe system does \u003cstrong data-end=\"2255\" data-start=\"2210\"\u003enot support monitored OSSD safety devices\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2308\" data-start=\"2258\" data-section-id=\"1mlefc4\"\u003eA rugged, retrofit-friendly solution is needed\u003c\/li\u003e\n\u003cli data-end=\"2373\" data-start=\"2309\" data-section-id=\"syz6b6\"\u003eBroad coverage is more important than single-point detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2378\" data-start=\"2375\"\u003e\n\u003ch2 data-end=\"2390\" data-start=\"2380\" data-section-id=\"1k5q749\"\u003eSummary\u003c\/h2\u003e\n\u003cp data-end=\"2610\" data-start=\"2391\"\u003eThe RLC-K72 is a \u003cstrong data-end=\"2465\" data-start=\"2408\"\u003eheavy-duty, non-monitored light curtain safety system\u003c\/strong\u003e built for commercial door environments where full-height obstruction detection is required without upgrading to a monitored safety architecture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Service Spring Corp","offers":[{"title":"Default Title","offer_id":50684203794718,"sku":"RLCK72","price":840.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2781\/5710\/files\/imagegen_f3e7fc6d-5cbb-4441-a20e-2a8c5515b874.jpg?v=1772790544","url":"https:\/\/garage-doorparts.com\/products\/relay-light-curtain-non-monitored-6-rlc-k72","provider":"garage-doorparts.com","version":"1.0","type":"link"}