Von Duprin QEL9975L-NL-07 4 US28 LHR Grade 1 MTS Exit Device 628

Von Duprin QEL9975L-NL-07 4 US28 LHR Grade 1 Mortise Exit Device 628 offers exceptional security and functionality for both single and double doors. This Grade 1 mortise exit bar features a robust 48" device with a night latch function, equipped with an 07 lever and escutcheon trim. The motorized latch retraction ensures smooth and efficient operation, while the less dogging feature enhances accessibility. Designed for standard hollow metal doors with an 86 cutout and stiles as narrow as 4 3/4", the QEL9975 is UL listed for panic exit hardware, making it a reliable choice for commercial applications. It includes a 3/4" anti-friction latch bolt that is field-reversible without the need to remove the lock from the door, providing versatility for various installations. With a satin aluminum clear anodized finish, this exit device maintains a professional appearance while offering durability. The easy installation process, combined with ANSI A156.3 – 2001 Grade 1 certification, ensures compliance with industry standards. The QEL9975 is suitable for door thicknesses ranging from 1-3/4" to 2-1/4" and is compatible with wood, hollow metal, and aluminum storefront doors. Ideal for enhancing safety and accessibility in commercial settings, this device combines reliability and sleek design.

Grade 1 Mts Exit Device 628

Grade 1 Mortise Exit Bar, 48" Device, Night Latch Function, 07 Lever with Escutcheon Trim, Motorized Latch Retraction, Less Dogging, Satin Aluminum Clear Anodized Finish, Field Reversible

9875/9975 Mortise lock device for all types of single or double doors, UL listed for panic exit hardware. Fits stock hollow metal doors with 86 cutout and door stiles as narrow as 4 3⁄4" (121mm). The 7500 Mortise lock is equipped with a 3⁄4" (19mm) anti-friction latch bolt which is field reversible without removing the lock from the door. It has a non-handed auxiliary bolt for deadlocking and a faceplate with an adjustable bevel.

Devices are ANSI A156.3 – 2001 Grade 1

The 9975 Series is for all types of single or double doors and is UL listed for panic exit hardware.  Fits stock hollow metal doors with 86 cutout and door stiles as narrow as 4 3 /4" (121mm). 

• Device functions: Device ships EO/DT/NL. Field selectable. For TP, K or L remove NL drive screw from device.
• Device lengths: 3' 2'4' to 3' (711mm to 914 mm) Door size 4' 2'10" to 4' (864 mm to 1219 mm) Door size
• Device centerline from finished floor: 39 13/16" (1011 mm) 39 11/16" (1008 mm) with mullion
• Center case dimensions: 8" x 2 3/4" x2 3/8" (203mm x 70mm x 60mm)
• Mechanism case dimensions: 2 1/4" x 2 1/4" (57mm x 57mm)
• Projection: Pushbar neutral – 3 13/16" (97 mm) Pushbar depressed – 3 1/16" (78 mm)
• Fasteners & sex bolts (SNB): Includes screw pack for 1 3/4" (44mm) and 2 1/4" (57mm) thick metal or wood do

Resources

• 10 Things You Need to Know About the Von Duprin Chexit
• 98/9975-2 Series Wood Door Template
• 990TP/TP-BE/NL Trim 98/9975 Mortise Lock Device Installation Instructions
• QEL Data Sheet
• Von Duprin Finishes Chart