Corbin Russwin CL3340 Grade 1 Patio/Privacy Extra Heavy-Duty Cylindrical Lever Lock

Corbin Russwin CL3340-NON-KEYED Patio/Privacy Extra Heavy-Duty Cylindrical Lever Lock with Lever Release Vandal Resistance

Grade 1 Commercial Cylindrical Lockset for Patio and Privacy Applications

The Corbin Russwin CL3340 is an extra heavy-duty, Grade 1 commercial cylindrical lever lock engineered for demanding patio and privacy applications (ANSI function F77). Designed for door thicknesses of 1-3/4" to 2" with a 2-3/4" backset, this non-keyed lockset features a throw-off latchbolt operated by lever, with the outside lever lockable via push button and freewheeling in the locked position while the inside lever remains always free. Constructed with steel and zinc dichromated components for corrosion resistance, the CL3340 delivers quiet, dependable operation across high-traffic commercial, industrial, and institutional environments. The most common configuration features the NZD Newport lever in 626 Satin Chrome finish.

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

Vandal-Resistant Design

The Corbin Russwin CL3300 Series is engineered to meet today's increased security needs. All functions and models feature the Lever Release™ design for vandal resistance, allowing the outside lever to rotate freely when in the locked position, protecting internal components from forced manipulation and extending the service life of the lockset in high-traffic or high-risk environments.

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3300 Series cylindrical locksets are manufactured with the highest quality steel and zinc dichromated components for corrosion resistance, delivering Grade 1 extra heavy-duty performance rated for years of dependable operation in demanding commercial, industrial, and institutional applications. The CL3340 is backed by a 7 Year Limited warranty, providing long-term confidence in every installation. Engineered with EZ-Install components, independent return springs, and Lever Release™ vandal resistance, Corbin Russwin sets the standard for professional-grade cylindrical door hardware.