{"product_id":"lcn-sem7850dkbrz-recessed-wall-mount-hold-open-magnet","title":"Lcn SEM7850DKBRZ Recessed Wall Mount Hold Open Magnet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe LCN SEM7850DKBRZ is a standard profile recessed wall mount electromagnetic hold-open magnet finished in 695 Dark Bronze. This unit mounts flush into a wall surface to hold a fire-rated or access-controlled door in the open position and releases it upon loss of power or activation of the fire alarm system. It is designed for commercial door hardware applications where a clean, low-profile installation is required. Installers working in schools, hospitals, government buildings, and correctional facilities will find this magnet suited to high-traffic corridor and egress door environments.\u003c\/p\u003e\u003cp\u003eThis hold-open magnet is intended for commercial and institutional interiors where door control hardware must integrate with fire alarm and access control systems. It is appropriate for use on standard interior swing doors in corridors, stairwells, and other egress paths where a code-compliant hold-open solution is needed without exposed surface-mounted hardware. The recessed profile keeps the unit out of the traffic path and reduces the risk of impact damage over the service life of the installation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRecessed wall mount profile keeps hardware flush with wall surface for a clean install\u003c\/li\u003e\n\u003cli\u003eDark Bronze 695 finish matches common commercial door and frame hardware finishes\u003c\/li\u003e\n\u003cli\u003eElectromagnetic hold-open design releases door automatically on power loss or alarm signal\u003c\/li\u003e\n\u003cli\u003eCompact footprint: 8.4 inches length by 5.5 inches width by 2.9 inches height\u003c\/li\u003e\n\u003cli\u003eSold individually as a single unit for targeted replacement or new installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style electromagnetic hold-open magnet for commercial swing door applications where a standard profile recessed wall mount unit is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed door hardware technician or qualified commercial contractor familiar with electromagnetic door hardware and applicable local codes. Disconnect and lock out all electrical power to the door control circuit before beginning mounting or wiring work. The recessed mount requires precise wall cavity preparation to maintain flush alignment with the door armature. Verify compatibility with the connected fire alarm or access control panel before placing the system back in service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 8.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 5.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 2.9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: 695 Dark Bronze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Recessed Wall Mount\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SEM7850DKBRZ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LCN","offers":[{"title":"Default Title","offer_id":51558019727666,"sku":"SEM7850DKBRZ","price":476.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ca0e4ca7614f2ce13992eb9214aa7de5.jpg?v=1786401034","url":"https:\/\/voomisupply.com\/products\/lcn-sem7850dkbrz-recessed-wall-mount-hold-open-magnet","provider":"Voomi Supply","version":"1.0","type":"link"}