{"product_id":"lcn-sem7830-689-magnetic-door-holder-surface-wall-mount-low-profile-armature-aluminum-painted-finish","title":"LCN SEM7830-689 Magnetic Door Holder, Surface Wall Mount, Low Profile Armature, Aluminum Painted Finish","description":"\u003ch2\u003eLCN SEM7830-689 Magnetic Door Holder, Surface Wall Mount, Low Profile Armature, 12V-24V-120V Tri Voltage, Aluminum Painted Finish\u003c\/h2\u003e\u003cp\u003eThe LCN SEM7830-689 is a surface wall-mounted magnetic door holder designed to keep fire and smoke doors safely held open until an alarm signal releases them. Built with a low-profile armature and finished in durable aluminum painted (689), this holder integrates cleanly into commercial life-safety systems. Its tri-voltage design accepts 12V, 24V, or 120V without additional components, simplifying installation across a wide range of building configurations. When the fire alarm is triggered, the electromagnet de-energizes and instantly releases the door, allowing an attached closer to move it to the closed position. It's a dependable choice for corridors, stairwells, and other openings requiring code-compliant hold-open functionality.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSurface wall-mounted design for straightforward installation in most commercial openings.\u003c\/li\u003e\n\u003cli\u003eLow-profile armature provides a compact, unobtrusive contact surface at the door.\u003c\/li\u003e\n\u003cli\u003eTri-voltage capability supports 12V, 24V, and 120V without changing components.\u003c\/li\u003e\n\u003cli\u003eAluminum painted finish (689) offers a clean appearance and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eReleases the door automatically upon fire alarm activation for reliable life-safety performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFunctional Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe SEM7830 uses an electromagnet that holds the door open while energized. When the connected fire alarm system signals or power is interrupted, the magnet releases, freeing the door so a closer can pull it shut and help contain smoke and fire.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eElectromagnetic holders release the door when the fire alarm system is activated.\u003c\/li\u003e\n\u003cli\u003eAvailable in single voltage or tri-voltage (12\/24\/120V) models.\u003c\/li\u003e\n\u003cli\u003eWall mount and floor mount configurations available.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eArm Type Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis unit is configured with a low-profile armature, which mounts to the door face and makes contact with the wall-mounted electromagnet. The reduced projection keeps the assembly close to the door surface for a discreet installation while maintaining a secure hold.\u003c\/p\u003e\u003ch4\u003eProduct Specifications\u003c\/h4\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eLCN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eSEM-7830\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003e689 Aluminum Painted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eSurface Wall Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArmature Type\u003c\/th\u003e\n\u003ctd\u003eLow Profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eElectromagnetic Door Holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eFire and Life-Safety Doors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit of Measure\u003c\/th\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUL Listing Type\u003c\/th\u003e\n\u003ctd\u003eUL Listed for Fire Door Applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBAA Qualified\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLimited Warranty\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12V \/ 24V \/ 120V (Tri-Voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent (12V)\u003c\/th\u003e\n\u003ctd\u003eDC operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent (24V)\u003c\/th\u003e\n\u003ctd\u003eDC operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCurrent (120V)\u003c\/th\u003e\n\u003ctd\u003eAC operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHolding Force\u003c\/th\u003e\n\u003ctd\u003eStandard electromagnetic hold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Style\u003c\/th\u003e\n\u003ctd\u003eWall Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eArmature Projection\u003c\/th\u003e\n\u003ctd\u003eLow Profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRelease Method\u003c\/th\u003e\n\u003ctd\u003eDe-energizes on alarm signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eSurface Mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Voltages\u003c\/th\u003e\n\u003ctd\u003e12V, 24V, 120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"LCN","offers":[{"title":"Default Title","offer_id":43609129779406,"sku":"SEM7830689","price":464.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/3493\/4478\/files\/Untitleddesign-2026-03-03T142649.688.png?v=1772566035","url":"https:\/\/qualitydoorhardware.ca\/products\/lcn-sem7830-689-magnetic-door-holder-surface-wall-mount-low-profile-armature-aluminum-painted-finish","provider":"QualityDoor.com","version":"1.0","type":"link"}