ND Series offers a full breadth of commercial lock options with a suited combination of mechanical, electrified and electronic options. This page focuses on mechanical and electrified lock information, NDE wireless electronic lock and ND Series ligature-resistant HSLR trim information are available on a separate web pages.
Beyond grade 1 performance is the hallmark of the mechanical and electrified locks. ND Series locks are tested to withstand 3,100 in-lb. of abusive lever torque - more than 2 1/2 times the Grade 1 standard requiremen. Offset lever pull testing up to 1,600 lbs. assures you of the lock's superb resistance against pry bar attacks. More than strong, ND Series is built to last and shows nearly zero droop or wobble after 16 million cycles.
All ND Series locks including electronic and ligature-resistant trim use the common cylindrical ANSI 161 door preparation making them easily interchangeable. They are ideal for all new construction and retrofit applications.
No access with minimum 3,100 in-lb. abusive lever torque, the equivalent of over 690 lbs. applied to the end of a 4-1/2" lever, 2.6 times over BHMA requirements*
No access with minimum 1,600 lbs. offset lever pull for protection against pry bar attacks, 8 times over BHMA requirements*
5 points of engagement provide nearly zero droop and wobble after 16 million cycles, 16 times over BHMA requirements*, without the use of set screws or o-rings
High security locking when used with Primus XP UL 437 listed cylinders
Function availability and convenience
24 mechanical/4 electrified functions (custom functions available through the factory in Colorado Springs, CO)
Multiple key systems available: open, patented and restricted
Four electrified functions auto-detect 12/24V DC operation and, with maximum current draws of 0.4 amps and 0.1 amps holding current eliminate heated levers
Indicator roses for classroom applications
Three spring cage sets support all Schlage plus eight competitive cylinder formats
Nine lever and four rose designs
Ten available finishes
Perfectly suited to Schlage ALX Series grade 2 locks
Suites with Von Duprin exit devices and other Schlage products
Vandlgard option lets the lever freely rotate up and down when locked to protect the chassis from excessive force on the lever to prevent vandlism - available on most keyed functions
* Beyond Grade 1 performance for ND Series locks with Schlage cylinders only (standard, FSIC & SFIC). Performance with non-Schlage cylinders will exceed BHMA grade 1 requirements, but the product performance may be less than that of Schlage cylinders.