{"product_id":"sdc-491-bb-back-box-emergency-door-release-station","title":"Sdc 491-bb Back Box Emergency Door Release Station","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SDC 491-bb is a back box designed for use with the SDC-491 emergency door release station. It provides a rigid, surface-mount enclosure that secures the release station to the wall in a clean, professional installation. Constructed from heavy-duty metal, the back box gives the 491 station a stable housing that meets the demands of commercial and institutional access control environments. Locksmiths, security integrators, and low-voltage electricians typically install this hardware as part of a complete egress or access control system.\u003c\/p\u003e\u003cp\u003eThe 491-bb is used wherever the SDC-491 emergency door release requires surface mounting rather than a flush or recessed wall install. Common applications include commercial office buildings, schools, healthcare facilities, and other occupancies where code-compliant emergency egress hardware must be mounted on finished wall surfaces. The back box provides the structural base that anchors the release station securely and routes wiring cleanly into the assembly.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHeavy-duty metal construction for durability in commercial environments\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the SDC-491 emergency door release station\u003c\/li\u003e\n\u003cli\u003eEnables surface mounting on finished wall surfaces\u003c\/li\u003e\n\u003cli\u003eProvides clean wiring management into the release station\u003c\/li\u003e\n\u003cli\u003eSupports professional, code-compliant egress hardware installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a dedicated back box for the SDC-491 emergency door release station for surface-mount installations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by a licensed low-voltage electrician or security integrator. De-energize the access control circuit before wiring the release station into the back box. Secure the back box to the wall surface using appropriate fasteners for the substrate, and route all field wiring through the box before mounting the SDC-491 station. Installations should conform to applicable local electrical codes and NFPA 101 life safety egress requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Heavy-duty metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Surface 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: SDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 491-bb\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SDC","offers":[{"title":"Default Title","offer_id":51525421433138,"sku":"491-BB","price":77.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5a4f954c7ad47394d7949bfdfa07ed51.jpg?v=1785473303","url":"https:\/\/voomisupply.com\/products\/sdc-491-bb-back-box-emergency-door-release-station","provider":"Voomi Supply","version":"1.0","type":"link"}