Corbin Russwin CLX3357 Grade 1 NVSL Extra Heavy Duty Storeroom Visual Status Lever Lock with Indicator

Corbin Russwin CLX3357-KEYED-NVSL Extra Heavy Duty Storeroom Cylindrical Lever Lock with Visual Status Indicator

ANSI/BHMA Grade 1 Cylindrical Lock with 180° Status Visibility and One-Motion Egress

The Corbin Russwin CLX3357-KEYED-NVSL is an Extra Heavy Duty Storeroom Cylindrical Lever Lock featuring NVSL trim with a built-in visual status indicator, engineered for high-traffic commercial environments where both security and instant lock-status visibility are essential. Built on the robust CLX3300 Series lock body, this cylindrical lock is ANSI/BHMA A156.2 Series 4000 Grade 1 certified and UL-cUL listed for 3-hour fire doors and windstorm applications. It accommodates door thicknesses from 1-3/4" to 2" with a standard 2-3/4" backset, and features a non-handed design for simplified installation on doors of any handing. The lock body is constructed of steel with zinc dichromate treatment for corrosion resistance, delivering lasting durability in demanding applications.

Professional Features & Benefits

• ANSI/BHMA Grade 1 cylindrical lock per A156.2 (2022) Series 4000
• UL Cycle above and beyond: 20 Million Cycles (Verification ID: V875753)
• Exceeds 3,100 in-lb abusive locked lever torque — 2.6× ANSI requirements
• Exceeds 1,600 lbs offset lever pull — 8× ANSI requirements
• Innovative Lever Release™ freewheeling design for vandal resistance
• Lock chassis design supports all cylinder formats (fixed core to interchangeable core)
• Patented adjustable push/turn button for easy door thickness adjustment
• Available with BHSS behavioral health trim and VSL visual status indicators
• EcoFlex® technology on CLX33900: up to 92% energy reduction (GreenCircle certified)
• Available with 27 mechanical and 2 electrified functions
• CLX3352 Classroom Intruder: locking from either side, always-free egress
• ElectroLynx® 8-pin molex connector on electrified units
• Ten-year limited mechanical warranty (two-year limited electrical)

Technical Specifications

• Grade: ANSI/BHMA A156.2 (2022) Series 4000, Grade 1
• Door Prep: ANSI/SDI A250.14
• Handing: Non-handed
• Door Thickness: 1-3/4" 2" (44–51mm) standard; optional 1-3/8" (D138) or over 2" up to 2-1/4" (D214)
• Backset: 2-3/4" (70mm) standard; optional 2-3/8", 3-3/4", 5"
• Minimum Stile: 4-1/2" (114mm)
• Latchbolt: Stainless steel, 1/2" (13mm) throw; optional 3/4" (19mm) deadlocking fire latch
• Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8" standard
• 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: 12VDC or 24VDC; range 10.2–26.4VDC (CLX33900)
• Electrified Current: 10mA continuous; 500mA peak @ 12VDC or 24VDC
• Operating Temperature: -13°F (-25°C) to 151°F (66°C) (electrified)
• Certifications: ANSI/BHMA A156.2 Grade 1; UL/cUL 3-hour; UL294 (electrified); NFPA 80; ADA A117.1; Windstorm/Hurricane certified
• Warranty: Ten-year limited mechanical; two-year limited electrical

Professional Applications

• Commercial Office Buildings
• High-Traffic Restrooms and Washrooms
• Educational Facilities and Classrooms
• Healthcare Institutions and Patient Rooms
• Retail Establishments and Storerooms
• Government and Municipal Buildings
• Multi-Tenant Residential and Hospitality Properties

Why Choose Corbin Russwin Quality?

Corbin Russwin CLX3300 Series cylindrical locks deliver professional-grade reliability with steel construction featuring zinc dichromate corrosion resistance, exceeding ANSI/BHMA A156.2 Grade 1 standards with over 3,100 in-lb abusive locked lever torque — 2.6 times the required threshold. Independent return springs ensure the lock surpasses Grade 1 cycle requirements without lever sag, making it ideal for the most demanding high-traffic commercial applications. Backed by a 7 Year Limited warranty, the CLX3357-KEYED-NVSL is a trusted solution where dependable performance, code compliance, and instant visual status indication are essential.