Von Duprin QEL3547AEO 3 US28 Grade 1 Narrow CVR Exit Device 628

Von Duprin QEL3547AEO 3 US28 Grade 1 Narrow CVR Exit 628 is a premier choice for commercial applications requiring reliable exit solutions. This Grade 1 concealed vertical rod exit device features a narrow stile pushpad, designed for 36" door sizes, and operates with a quiet electric latch retraction mechanism, ensuring a smooth and silent exit process. Constructed from durable aluminum and finished in a satin aluminum clear anodized (US28) look, the device is both aesthetically pleasing and resilient. It fits door stiles as narrow as 2-1/8" and is suitable for both single and double doors, making it versatile for various building layouts. The non-handed design simplifies installation, and the device is UL listed for panic exit hardware, meeting ANSI A156.3 2008 standards. The pushbar’s projection is designed for ease of use, with dimensions that allow for a clean, unobtrusive application. With adjustable vertical rods and a deadlocking anti-friction latch bolt, security is uncompromised. This model also includes fasteners and sex bolts for easy installation on wood and metal doors. Overall, the Von Duprin QEL3547AEO provides a perfect blend of functionality, safety, and style for your exit hardware needs.

Grade 1 Narrow CVR Exit 628

Grade 1 Concealed Vertical Rod Exit Device, Narrow Stile Pushpad, 36", Exit Only, Less Trim, Less Dogging, Quiet Electric Latch Retraction, Satin Aluminum Clear Anodized Finish, Non-Handed

3347A and 3547A for all types of single and double doors, UL listed for panic exit hardware. Devices are ANSI A156.3 2008 Grade 1. The 3547A has a smooth mechanism case and the 3347A has grooved case. The concealed vertical rod device is non-handed except when the SS (signal switch) option is used. See opposite page for available outside trim and device functions.

Finishes – US3, US4, US10, US15 (35A Only) US26, US26D, US26D-AM,US28, 313 and 315.

The concealed vertical rod device is non-handed except when the SS (signal switch) option is used. /3547A fits door stiles as narrow as 2-1/8" (44 mm), wood door stiles as narrow as 4" (102mm). Newly designed device has a one piece center case cover.

• Device lengths: 2' 2' (610 mm) Door size 3' 2'4" to 3' (660mm to 914 mm) door size 4' 2'8" to 4' (813 mm to 1219 mm) door size
• Device centerline from finished floor: 39 13/16" (1006mm)
• Center case dimensions: 8 13/16" x 2 13/32" x 1 9/16" (208mm x 62mm x 40mm)
• 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)
• Latch bolt: Deadlocking anti-friction top & bottom bolt 5 /8" (16mm) throw
• Door undercut: 1 /4" (7mm)
• Top & bottom latch: 3 3/4" x 1 1/2" x 1" (89mm x 38mm x 25mm)
• Vertical rods: Round 2 piece adjustable rods Top rod adjustable from 6'8" (2027mm) to 8'4" (2533mm) Bottom rod adjustable from 35 5/8" (905mm) to 49 5/8" (1260mm) Extension rod kits available for doors over 8'4" (2533mm)
• Fasteners & sex bolts (SNB): Includes 1 3/4" (44mm) – 2 1/4" (57mm) wood & metal doors #425 SNB furnished standard for end case #325 SNB furnished standard for EO (exit only device)

Resources

• 33/3547A-WDC & 33/3547A-WDC-F Series Wood Door Template
• 33/3547A-WDC-F-LBR Series Wood Door Template
• 372L-DT Control for 33/3547/47-F Metal Door Installation Instructions
• EL for Exit Devices Data Sheet
• Von Duprin Finishes Chart