Von Duprin QEL9975EO 3 US28 Grade 1 MTS Exit Device 628

Von Duprin QEL9975EO 3 US28 Grade 1 Mts Exit Device 628 offers a robust and reliable solution for emergency exits in commercial settings. This Grade 1 mortise exit bar is designed for 36-inch applications and features motorized latch retraction for seamless operation, ensuring quick egress when it’s needed most. With a satin aluminum clear anodized finish, this exit device not only provides durability but also maintains an attractive appearance. The QEL9975EO is suitable for all types of single or double doors, fitting stock hollow metal doors with an 86 cutout and door stiles as narrow as 4 3/4 inches. Its field-reversible functionality allows for easy installation without removing the lock from the door. This device is ANSI A156.3 – 2001 Grade 1 certified and UL listed for panic exit hardware, ensuring compliance with safety standards. With a projection of 3 13/16 inches when neutral and 3 1/16 inches when depressed, the pushbar design enhances usability in high-traffic environments. Additionally, the non-handed auxiliary bolt provides effective deadlocking. Designed for doors ranging from 1-3/4 inches to 2-1/4 inches in thickness, the QEL9975EO is an ideal choice for enhancing safety and accessibility in commercial buildings.

Grade 1 Mts Exit Device 628

Grade 1 Mortise Exit Bar, 36" Device, Exit Only, 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