The KEYMAN Commercial Grade 2 Cylindrical Lever Classroom Lock is engineered for high-traffic environments where security, durability, and safety are paramount. Its classroom function is a standout feature: the exterior lever can be locked or unlocked with a key for controlled access, while the interior lever remains always free to ensure immediate, key-free egress during emergencies, which is crucial for compliance with building and safety codes in schools and commercial buildings .
Constructed to meet ANSI/BHMA Grade 2 commercial standards, this lock is built for long-term reliability, capable of withstanding over 400,000 cycles of operation, making it ideal for the daily wear and tear of educational institutions and office buildings . The lock's heavy-duty cylindrical body and robust materials, such as zinc alloy levers and stainless steel components, provide enhanced strength and resistance to corrosion and forced entry .
A significant safety advantage is its UL 3-hour fire rating, certifying that the lock assembly can help contain fire and smoke for up to three hours when installed on a fire-rated door . The non-handed design allows for easy installation on both left and right-handed doors without modification, simplifying inventory and reducing installation time for contractors and facility managers .
Product Specifications
Feature | Specification |
|---|
Security Grade | ANSI/BHMA Grade 2 |
Function | Classroom (Outside: key-operated lock; Inside: always free for egress) |
Fire Rating | UL 3-Hour Fire Rated (on applicable models) |
Backset | 2-3/4" (70mm) Standard |
Door Thickness | 1-3/8" to 1-3/4" (35mm to 45mm) |
Cylinder | 6-pin, removable core (e.g., Schlage "C" keyway) |
Frequently Asked Questions (FQA)
Q1: What is the "classroom" lock function best used for?
A1: The classroom function is ideal for rooms requiring controlled access but safe, immediate exit, such as classrooms, offices, meeting rooms, and storage closets. It allows teachers or staff to lock the door from the outside with a key to prevent entry, while anyone inside can always leave quickly and safely .
Q2: How does the ANSI Grade 2 certification benefit me?
A2: ANSI Grade 2 is a commercial-grade rating that ensures the lock has been tested for durability (exceeding hundreds of thousands of cycles) and security beyond residential-grade locks. It provides assurance of long-term performance and reliability in moderate to high-traffic commercial settings .
Q3: Can this lock be used on a fire-rated door?
A3: Yes, models that are UL Listed for a 3-hour fire rating are specifically certified for use on fire-rated door assemblies. This helps compartmentalize fire and smoke, which is often a requirement by building codes for specific locations within a building .
Q4: Is professional installation required?
A4: While the non-handed design and standard door preparations (2-1/8" bore) make installation relatively straightforward, it is generally recommended that installation be performed by a qualified professional to ensure all security and fire-rating standards are properly maintained .
