Accentra 4790LN Monroe Grade 1 Fail Safe Electrified Cylindrical Lever Lock
Professional Grade 1 Cylindrical Lock Solution
The Accentra 4790LN Monroe cylindrical lever lock delivers Grade 1 performance for demanding commercial applications with fail safe electrified operation. This heavy-duty lock features adjustable door thickness from 1-3/8" to 1-3/4", 2-3/4" standard backset, and 1/2" stainless steel latchbolt throw. ANSI/BHMA Grade 1 certified and UL fire-rated up to 3 hours, this lock provides reliable security with professional Monroe lever design and heavy-gauge steel mechanism construction.
Professional Features & Benefits
- ANSI/BHMA: A156.2, Series 4000 Grade 1
- UL-cUL: UL-cUL fire-rated up to 3 hours
- Windstorm: 4700LN Certified (refer to local codes)
- Mechanism: Heavy-gauge steel, die-cast, zinc-plated, chromated
- Backset: 2-3/4" standard
- Latchbolt: 1/2" stainless steel throw standard
- Guardbolt: Deadlocks latchbolt when door is closed; standard on all locking functions
- Door Thickness: 4700LN adjustable from 1-3/8" to 1-3/4". 4700 adjustable from 1-3/4" to 2"
- Fronts: 2-1/4" x 1-1/8" beveled standard; flat fronts available to order
- Cylinders: Brass, 6-pin, keyed-random cylinder with two keys furnished standard, 7-pin not available.
- Reversibility: Non-handed
- Strikes: ANSI strike 4-7/8" x 1-1/4" x 1-1/4" lip to center supplied standard. Optional T-strike available to order for 4700LN.
- Finishes: 4700LN available in 7 finishes, 4700 available in satin stainless steel (630) only.
- Warranty: 5-year mechanical
Installation & Operation
- Verify electrical requirements match available power supply for electrified operation. Confirm voltage and current capacity before proceeding.
- 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 fail-safe operation per application requirements.
- Restore power and test all functions including normal operation, electrified functions, and integration with connected access control 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
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Accentra Quality?
Accentra cylindrical lever locks deliver professional-grade reliability with heavy-gauge steel construction and Grade 1 certification for demanding commercial applications. UL fire-rated up to 3 hours with 5-year mechanical warranty for added confidence and protection. Engineered for demanding commercial applications where dependable performance and code compliance are essential.
Manufacturer Resources
Product Specs
- Series:
- 4700 Series
- Subcategory:
- Cylindrical
- Grade:
- Grade 1
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Bored Locksets
- Product Type:
- Leversets
- Commercial/Residential:
- Commercial
- Electronic:
- Yes
- Lock Type:
- Cylindrical
- Handle Type:
- Lever
- Product Attribute:
- Cylindrical Locks
- Product Model:
- YAL-4790LN
- Collection:
- 4700 Series
- Lever Design Name:
- Monroe Lever
- Product Category:
- Mechanical Locks
- Department:
- Door Hardware