The KEYMAN Commercial Grade 2 Cylindrical Lever Classroom Lock is specifically designed to meet the demanding security and safety requirements of educational institutions, offices, and commercial buildings. Its robust construction ensures long-term reliability in high-traffic environments, providing a secure yet accessible entry solution.
A primary advantage of the classroom function is its safety-oriented design: the exterior lever can be locked or unlocked with a key, while the interior lever remains always free for immediate egress during emergencies. This feature is crucial for complying with safety codes and ensuring quick evacuation . The lock is built to exceed ANSI/BHMA Grade 2 standards, rigorously tested for over 500,000 cycles to guarantee durability under frequent use .
Constructed with heavy-duty materials such as zinc alloy and stainless steel, the lock resists wear, corrosion, and forced entry attempts . Its non-handed design simplifies installation, allowing it to fit both left- and right-handed doors without modification, which reduces inventory complexity and installation time . Additionally, the lock carries a UL 3-hour fire rating, enhancing life safety in fire-rated door assemblies . The sleek satin chrome finish not only offers a modern appearance but also adds resistance to fingerprints and corrosion .
Classroom Lock Function Overview
Component | Function |
|---|
Exterior Lever | Locked or unlocked by key; removable for easy rekeying . |
Interior Lever | Always free to exit immediately, ensuring safe egress . |
Cylinder | 6-pin solid brass cylinder for key operation; "SC" keyways . |
Frequently Asked Questions (FQA)
Q1: What is the classroom lock function, and where is it best used?
The classroom function allows the outside lever to be locked or unlocked with a key, while the inside lever is always free to open for safe, immediate egress. It is ideal for classrooms, offices, meeting rooms, and other spaces where controlling access while ensuring easy exit is a priority .
Q2: What certifications does this lock hold?
This lock meets ANSI/BHMA Grade 2 commercial standards for durability and security. It is also UL listed, with many models featuring a 3-hour fire rating, ensuring compliance with building safety codes .
Q3: How does the clutch mechanism enhance security?
A clutch mechanism (or anti-riot feature) is designed to withstand excessive force. If the outside lever is forced, the clutch disengages, preventing damage to the internal mechanism and maintaining the lock's integrity .
Q4: Can the lock be used with different key systems?
Yes. The lock typically uses a 6-pin cylinder (e.g., Schlage "C" keyway) and can be keyed alike for convenience or master keyed for broader access control. It may also support high-security cylinders from brands like Medeco or Kaba .
Q5: What are the standard installation measurements?
The lock generally fits doors 1-3/8" to 1-3/4" thick with a standard 2-3/4" backset. It requires a 2-1/8" bore hole, conforming to common commercial door preparations .
