Corbin Russwin CL3340NT Grade 1 Exit Latch Extra Heavy-Duty Cylindrical Lever Lock

Corbin Russwin CL3340NT Non-Keyed Exit Latch Cylindrical Lever Lock, Grade 1 Extra Heavy-Duty, ANSI F89

Commercial-Grade Exit Latch Security for High-Traffic Applications

The Corbin Russwin CL3340NT is an extra heavy-duty, Grade 1 non-keyed cylindrical lever lock engineered for demanding commercial, industrial, and institutional environments. Designed to ANSI function F89 (Exit Latch), this lockset features a deadlocking latchbolt operated by the inside lever, with the outside lever always locked in a freewheeling position for vandal resistance. Compatible with doors 1-3/4" to 2" thick and a standard 2-3/4" backset, the CL3340NT is part of the proven CL3300 Series platform built for years of dependable, quiet operation. The unit is fire rated and non-handed, making it a versatile solution across a wide range of door configurations.

Professional Features & Benefits

• Grade 1 cylindrical lockset per ANSI/BHMA A156.2 Series 4000, Grade 1
• Lever Release™ design for vandal resistance — outside lever rotates freely when locked
• EZ-Install components significantly reduce installation time
• Independent return springs prevent lever sag
• 4 solid cast lever options (Armstrong, Newport, Princeton, Frascati)
• Anti-rotational through-bolts at 6 and 12 o'clock positions
• Accommodates 6 or 7-pin conventional cylinders and all keying levels
• CL3352 Classroom Intruder function: double-cylinder lockset, always-free egress
• Available with MicroShield® antimicrobial coating (suffix option code "C")
• CL33900 electrified option: fail safe and fail secure, 12 or 24VAC/VDC
• ElectroLynx® 8-pin connector on all electrified products
• Seven-year limited warranty (two-year for electrified)

Technical Specifications

• Grade: ANSI/BHMA A156.2 Series 4000, Grade 1
• Handing: Non-handed (except FZD trim)
• Door Thickness: 1-3/4" (44mm) 2" (51mm) standard; optional over 2" 2-1/4" (57mm)
• Backset: 2-3/4" (70mm) standard; optional 3-3/4" (95mm) and 5" (127mm)
• Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) fire latch
• Auxiliary Latchbolt: Deadlocking — prevents manipulation when door is closed
• Lock Chassis: Steel, zinc dichromated for corrosion resistance
• Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8"
• Strike: Wrought brass or stainless steel ANSI curved lip, 4-7/8" x 1-1/4" x 1-1/4" lip to center
• Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
• Electrified Voltage: 12VAC/DC or 24VAC/DC (CL33900 Series)
• Electrified Current: 250mA @ 12VAC/VDC; 150mA @ 24VAC/VDC, continuous duty solenoid
• Certifications: ANSI/BHMA A156.2 Grade 1; UL-cUL listed; ANSI A117.1 Accessibility; California State Fire Marshal
• Warranty: Seven-year limited (two-year for CL33900 electrified)

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 Corbin Russwin Quality?

Corbin Russwin CL3300 Series cylindrical locksets deliver professional-grade reliability through Grade 1 extra heavy-duty construction with steel and zinc dichromated substrates engineered for corrosion resistance and long-term durability. The Lever Release™ design and independent return springs ensure consistent, vandal-resistant performance across millions of operating cycles in the most demanding commercial environments. Backed by a 7 Year Limited warranty, the CL3340NT represents a trusted investment in commercial door security where dependable, code-compliant performance is essential.