Accentra 5491LN Augusta Grade 1 Fail Secure Electrified Cylindrical Lever Lock with Request to Exit and LFIC Prep

Accentra 5491LN Augusta Grade 1 Fail Secure Electrified Cylindrical Lever Lock with Request to Exit and LFIC Prep

Heavy-Duty Grade 1 Electrified Cylindrical Lock for Commercial Applications

The Accentra 5491LN Augusta leverages the proven 5400LN series platform to deliver fail secure electrified access control with Grade 1 ANSI/BHMA A156.2 certification. This heavy-duty cylindrical lock accommodates door thicknesses from 1 3/8" to 2 1/4" with standard 2 3/4" backset and operates on 24VDC power. The unit features 6 pin LFIC-Yale Large Format IC preparation (less core) and includes request to exit functionality with UL/cUL fire rating up to 3-hours.

Professional Features & Benefits

• Heavy duty construction provides strength and durability
• Free wheeling lever for vandal resistance
• Adjustable rose support plates
• Available in 24 functions, including electrified
• ADA compliant for ease of accessibility
• UL/cUL fire rated up to 3-hours
• Rugged construction offers greater reliability and resists wear-and-tear
• Easy installation with adjustable rose allows for easy adjustment on different door thicknesses
• Certified grade 1, ANSI/BHMA A156.2
• Windstorm certified (refer to local codes)
• 7-year mechanical warranty

Installation & Operation

1. Verify electrical requirements match available power supply. Confirm 24VDC voltage 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 fail-secure operation and request to exit functions per application requirements.
6. Restore power and test all functions including normal operation, fail secure operation, request to exit functionality, 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

• Commercial Building Security Systems
• Educational Institution Access Control
• Healthcare Facility Security
• Industrial Facility Access Points
• Government and Municipal Buildings
• Multi-Tenant Commercial Properties
• Emergency Exit Compliance Applications

Why Choose Accentra Quality?

Accentra 5491LN cylindrical locks deliver professional-grade reliability with heavy-duty construction featuring free wheeling lever mechanism and wear-resistant chassis plates rated for Grade 1 commercial performance. The 7-year mechanical warranty provides long-term protection and confidence. Engineered for demanding commercial applications where dependable electrified access control and emergency egress compliance are essential.