Sargent 8290 Classroom Security Holdback Function Mortise Lock with Heavy Duty Double Cylinder Grade 1

Sargent 8290 Classroom Security Holdback Mortise Lock with Heavy Duty Double Cylinder Grade 1

Professional Grade 1 Mortise Lock with Advanced Security Features

The Sargent 8290 classroom security holdback mortise lock delivers maximum security, performance, and durability for commercial applications. This heavy-duty double cylinder mortise lock features a 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw for reliable operation. Built to exceed industry standards with UL 10C fire rating up to 3 hours and ANSI/BHMA A156.13 Series 1000 Grade 1 certification for demanding commercial environments.

Professional Features & Benefits

• Heavy-Duty Durability: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for exceptional longevity in high-traffic applications.
• Precision Dimensions: Standard 2 3/4" backset depth with 1 3/4" door thickness and 3/4" latchbolt throw for reliable mechanical operation.
• Electromechanical Operation: 12 to 24VDC operation with EcoFlex technology reducing power consumption up to 96% for energy-efficient performance.
• Fire-Rated Construction: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for life safety applications.
• Universal Key System Compatibility: Integrates with all SARGENT key systems including Degree, Signature, KESO, and XC for flexible access control.
• Field Reversible Handing: Adaptable installation for left or right-hand doors without additional hardware requirements.
• Multi-Functional Design: Available in 56 different functions including electromechanical, security and monitoring options with on-site function switching capability.
• 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

1. Verify electrical requirements match available power supply. Confirm voltage (12 to 24VDC) and current capacity before proceeding.
2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
5. Configure operational settings including any configurable options per application requirements.
6. Restore power and test all functions including normal operation, alarm/alert functions, and integration with connected systems.
7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

• Educational Facilities and Classroom Security
• Commercial Office Buildings
• Healthcare Institutions
• Government and Municipal Buildings
• Multi-Tenant Residential Properties
• Industrial and Warehouse Facilities
• Retail Establishments

Why Choose Sargent Quality?

Sargent 8290 mortise locks represent the industry benchmark for commercial door hardware with patented design and construction tested to 16 million cycles. UL 10C fire-rated up to 3 hours with comprehensive ANSI/BHMA certifications and ADA compliance ensure code-compliant installations. Backed by a 10-year limited warranty with 2-year electrical component coverage, these locks deliver professional-grade reliability engineered for demanding commercial applications where dependable performance is essential.

Product Documentation & Resources

• [Catalog] SARGENT Full Line Catalog