Sargent 8248 Grade 1 Heavy Duty Double Cylinder Mortise Lock with Deadbolt – Storeroom FunctionIndustry Benchmark Mortise Lock with Maximum Security and PerformanceThe Sargent 8248 represents the industry benchmark for maximum security, performance, and durability in commercial mortise locks. This Grade 1 storeroom function lock features heavy-duty construction with 2 3/4″ backset, 1 3/4″ door thickness compatibility, and 3/4″ latchbolt throw. The multi-functional lock body integrates with all SARGENT key systems including Degree, Signature, KESO, and XC, while offering field-reversible handing for installation flexibility. UL 10C fire-rated up to 3 hours with comprehensive ANSI/BHMA A156.13 Series 1000 certification ensures code compliance in demanding applications.Professional Features & Benefits Exceptional Durability Testing: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched longevity in high-traffic commercial environments. Heavy-Duty Construction: Grade 1 operational rating with robust lever-style design engineered to far exceed independently verified testing standards. Universal Key System Integration: Compatible with all SARGENT key systems including Degree, Signature, KESO, and XC for seamless integration with existing security infrastructure. Precision Dimensions: 2 3/4″ backset with 1 3/4″ door thickness compatibility and 3/4″ latchbolt throw for reliable operation in standard commercial door preparations. EcoFlex Energy Technology: Advanced electromechanical functions utilize EcoFlex technology creating up to 89% energy savings and 96% power consumption reduction on 12-24VDC operation. Comprehensive Fire Rating: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for critical fire safety applications. Field-Reversible Configuration: Handing can be changed on-site with curved lip strike for installation flexibility across various door configurations. Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for long-term protection and confidence.Technical Specifications Refer to manufacturer documentation for complete technical specifications.Installation & Operation Verify electrical requirements match available power supply. Confirm 12-24VDC voltage and current capacity before proceeding with electromechanical functions. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application. Configure operational settings including field-reversible handing and any configurable options per application requirements. Restore power and test all functions including normal operation, electromechanical functions, and integration with connected systems. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.Professional Applications Commercial Office Buildings Educational Facilities Healthcare Institutions Government and Municipal Buildings Industrial Facility Access Points Multi-Tenant Residential Properties Retail EstablishmentsWhy Choose Sargent Quality?Sargent 8200 Series mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in UL testing. The 10-year limited warranty with 2-year electrical component coverage provides comprehensive protection for demanding commercial applications. Engineered with multiple security features and comprehensive certifications including ANSI/BHMA A156.13 Series 1000 Grade 1, this lock provides the strength, reliability, and flexibility essential for critical access control installations.