Schlage ND78PD RHO 643E Grade 1 Classroom Security LockSchlage ND78PD RHO 643E Grade 1 Classroom Security is a robust cylindrical lock designed for superior safety and functionality in educational and commercial environments. This Grade 1 lockset features a reliable 180-degree lockdown capability, ensuring enhanced security during critical situations. The Rhodes lever design provides an ergonomic grip, making it easy to operate while maintaining a sleek appearance in an aged bronze finish. With a non-handed installation, the ND78PD is versatile enough to fit doors with a thickness ranging from 1 5/8" to 2 1/8". It boasts a standard backset of 2 3/4" and is constructed from zinc-plated materials for corrosion resistance, ensuring durability over time. Certified to exceed 3-million operating cycles, this lockset is built to withstand high usage, making it ideal for healthcare, education, government, and retail applications. The ND Series includes a 6-pin Everest 29 S123 keyway and comes with two patented nickel silver keys, offering options for master keying and interchangeable cores. Additionally, it is UL/cUL listed, providing assurance of its reliability. With a ten-year limited warranty, Schlage stands behind the craftsmanship of the ND78PD RHO, delivering peace of mind for facility owners and managers alike.
Grade 1 Classroom Security
Grade 1 Classroom Security (180-Degree Lockdown) Cylindrical Lock, Rhodes Lever, Conventional Cylinder, Aged Bronze Finish, Non-Handed
Walter Schlage invented the cylindrical lock in 1920. Since then, the Schlage Lock Company has consistently delivered innovation and continuous improvement. In that tradition, The ND Series Cylindrical Lockset is a proven, easy to install product with extensive function, keying, trim and finish capabilities that work in nearly any application. The Schlage ND Series Locksets are commonly used in Healthcare, Education, Government, Office, Retail, and other commercial applications. The ND Series has been certified Grade 1; exceeding 3-million operating cycles without failure. This provides confidence that the lock will last within any type of facility. Finally, Schlage has incorporated wire-wireless capabilities that meet the access control and security needs of every facility owner.
Proven, easy-to-install lever locks with extensive function, keying, trim and finish capabilities.
The Schlage® ND family significantly exceeds BHMA Grade 1 requirements for cycle, hammer blow, lever torque, lever pull and other tests. This means confidence that the lock will last, whether the application calls for high abuse resistance or just operation over millions of cycles—without any degradation in performance.
- Handing: All ND-Series lever locksets are non-handed.
- Door Thickness: 1 5/8” to 2 1/8” (41mm–54mm) standard including Vandlgard® functions. 1 3/4” - 2” for function ND85. See accessories for spacers required for 1 3/8” doors.
- Backset: 2 3/4” (70 mm) standard. 2 3/8”, 3 3/4” and 5” (60 mm, 95 mm, 127 mm) optional.
- Faceplate: Brass, bronze or stainless steel. 1 1/8” x 2 1/4” (29 mm x 57mm) square corner, beveled.
- Lock Chassis: Zinc plated for corrosion resistance.
- Latch Bolt: Steel, 1/2” (12mm) throw, deadlocking on keyed and exterior functions. 3/4” (19 mm) throw anti-friction latch available for pairs of fire doors.
- Exposed Trim: Levers: Pressure cast zinc, plated to match finish symbols.
- Roses: Brass, bronze or zinc.
- Strike: ANSI curved lip strike 1 1/4” x 4 7/8” x 1 3/16” lip to center standard. Optional strikes, lip lengths and ANSI strike box available. See page 21.
- Cylinder & Keys: 6-pin Everest 29 S123 keyway standard with two patented nickel silver keys per lock.
- Keying Options: Interchangeable core and Primus high security cylinders. Master keying, grand master keying and construction keying.
- Warranty: Ten-year limited for all functions including Vandlgard.
Attributes
Ansi: ANSI A156.2 Series 4000, Grade 1
Ansi Function: F110
Bolt Projection: 1/2"
Cam Number: N123-076
Commercial Residential: Commercial
Country of origin: Mexico
Cylinder Type: Conventional Cylinder
Door Thickness: 1-5/8" to 2-1/8"
Finish: 643E/US11E
Finish Family: Dark Bronze
Fire Rated: 3 Hours {A}
Fire Rating: 3 Hours {A}
Function: 78-Classroom Security (180-degree lockdown)
Grade: Grade 1
Handing: Non-Handed
Installation: Commercial
Keys: Cut
Leverknob Design: RHO - Rhodes Lever
Leverknob Design Family: Straight Return Lever
Limited Warranty: 10 Years
Lock Face Size: 2-1/4" x 1-1/8"
Of Keys: 2
Origin: Mexico
Pack Qty: 1
Pins: 6
Projection: 2-15/16"
Roseescutcheon Design: Rose
Roseescutcheon Dimensions: 3-7/16"
Screws: Wood/Machine Screws
Series: ND Series Lever Locks
Std Latch Backset Dim: 2-3/4"
Std Latch Number: 13-247
Std Latch Type: Deadlatch
Std Strike Height: 4-7/8"
Std Strike Number: 10-025
Std Strike Type: ANSI Strike
Std Strike Width: 1-1/4"
Subtype: Cylindrical Lock
Type: Locks, Cylinders, Cores, Keyblanks
Ul Listing: UL/cUL Listed
Unit of Measure: Each
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