{"product_id":"sdc-492-gl4-glass-rod-replacement-4-rod-kit","title":"Sdc 492-GL4 Glass Rod Replacement 4-rod Kit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SDC - SECURITY DOOR CONTROLS 492-GL4 is a four-piece glass rod replacement kit designed for use with the SDC 492 series electromagnetic door holder and release devices. Glass rods are a critical fusing element in these life-safety devices, designed to shatter at a specific temperature threshold so the door holder releases and allows fire doors to close automatically. This kit supplies four replacement rods, providing enough stock to service multiple units or keep spares on hand. Installation is performed by qualified door hardware or life-safety technicians.\u003c\/p\u003e\n\u003cp\u003eThis replacement kit is suited for commercial and institutional facilities where SDC 492 series door holders are installed, including schools, hospitals, office buildings, and other occupancies requiring compliant fire door hold-open devices. The glass rods are a consumable maintenance component replaced during routine inspection, after a fire event, or when rods are found damaged during service calls. Having replacement rods on site reduces system downtime during inspections or post-activation servicing.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFour glass rods per kit, providing multi-unit service coverage or on-hand backup supply\u003c\/li\u003e\n  \u003cli\u003eDirect replacement component for SDC 492 series door holder devices\u003c\/li\u003e\n  \u003cli\u003eCritical fusing element that enables automatic fire door release at temperature threshold\u003c\/li\u003e\n  \u003cli\u003eSold as a single kit unit (each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct replacement glass rod set for the SDC 492 series electromagnetic door holder and release devices.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eGlass rod replacement on fire door hold-open devices should be performed by a qualified door hardware technician or life-safety systems professional familiar with local fire codes and AHJ requirements. De-energize the door holder before beginning any service work. Handle glass rods carefully to avoid pre-activation breakage during installation. Verify proper rod seating and device function before returning the unit to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKit Quantity\u003c\/strong\u003e: 4 glass rods\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each (1 kit)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: Miscellaneous Door Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SDC - SECURITY DOOR CONTROLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 492-GL4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SDC","offers":[{"title":"Default Title","offer_id":51688202305842,"sku":"492-GL4","price":60.65,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/sdc-492-gl4-glass-rod-replacement-4-rod-kit","provider":"Voomi Supply","version":"1.0","type":"link"}