Von Duprin 5547WDC-4ft Concealed Vertical Rod Exit Device for 4ft Narrow Stile Wood Doors

Von Duprin 5547WDC-4ft Concealed Vertical Rod Exit Device for 4ft Narrow Stile Wood Doors

Classic Crossbar Design with Concealed Vertical Rod Technology for Wood Door Applications

The Von Duprin 5547WDC-4ft is a 4-foot (48") Concealed Vertical Rod Exit Device engineered for single or double wood door applications requiring a narrow stile crossbar solution. Designed to fit door stiles as narrow as 4" (102 mm), this device accommodates 1-3/4" thick doors and delivers a 1/2" latch throw with a 3-3/4" product projection. Certified to ANSI/BHMA A156.3, 2008 Grade 1 standards and UL rated, the 5547WDC is part of Von Duprin's 55 Series — a narrow stile crossbar line favored in retro-inspired architecture and historical buildings. The device is field reversible for door hand direction and features Hex Key Dogging for convenient hold-open functionality.

Professional Features & Benefits

• Narrow Stile Compatibility: Fits door stiles as narrow as 4" (102 mm), making it ideal for wood doors where stile width is limited.
• 4-Foot (48") Device Size: Available in a 48" configuration that is field sizeable for single and double door applications, providing installation flexibility.
• Door Thickness & Latch Specifications: Designed for 1-3/4" thick doors with a 1/2" latch throw and 3-3/4" product projection for reliable latching performance.
• ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3, 2008 Grade 1 standards along with ANSI/UL 305 and CAN/ULC-S132 certifications for commercial-grade reliability.
• Fire-Rated Option Available: Can be ordered as fire rated (ANSI/UL 10C and CAN/ULC-S104 compliant) by adding the "-F" suffix to the model designation.
• Field Reversible Handing: Door hand direction is field reversible, simplifying installation and reducing the need for pre-ordered handed units.
• Hex Key Dogging: Integrated Hex Key Dogging allows the device to be held in the retracted position for high-traffic or prop-open applications.
• Versatile Device Type Options: The 55 Series supports rim (surface-mounted vertical rods — 27), concealed vertical rods (47), and mortise lock (75) configurations for broad application coverage.
• Comprehensive Trim & Function Options: Compatible with multiple trim functions including Classroom, Dummy, Exit Only, Passage, and Storeroom, as well as popular 990 pull trim with five standard functions.
• Electronic & Mechanical Options: Supports optional E8875 (access control/fire alarm/remote switching integration), RX (door monitoring switch), and KN (knurled crossbar for hazardous area tactile warning) add-ons.
• Fastener Inclusion: Includes screw pack for 1-1/4" and 2-1/4" thick metal/wood doors for straightforward installation.

Technical Specifications

• Product Group: Exit Devices and Trim
• Series: 55 Series
• Grade: Grade 1
• Fasteners: Screw pack for 1-1/4" and 2-1/4" thick medal/wood doors.
• Product Subgroup: Exit Devices - Vertical Rod
• Product Type: Exit Devices - Concealed Vertical Rod
• Subcategory: Concealed Vertical Rod Exit Devices
• Latch Throw: 1/2"
• Commercial/Residential: Commercial
• Stile Type: Narrow Stile
• Door Hand Direction: Field Reversible
• Door Thickness Range: 1-3/4"
• Product Size: 48"
• Dogging Configuration: Hex Key Dogging
• Product Dimension: 7-1/4" x 1-1/4" x 2-1/4" (Hinge Stile Case), 7-1/4" x 1-1/4" x 2-1/4" (Lock Stile Case)
• Fire Rating: No
• Product Projection: 3-3/4"
• Product Style: Cross Bars
• Product Category: Exit Devices and Trim
• Department: Door Hardware

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Historical and Retro-Inspired Architecture
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Von Duprin Quality?

Von Duprin 55 Series Concealed Vertical Rod Exit Devices are built to commercial-grade standards, certified to ANSI/BHMA A156.3, 2008 Grade 1 and compliant with ANSI/UL 305 and CAN/ULC-S132. The 5547WDC-4ft is engineered for demanding wood door applications with narrow stiles as small as 4" (102 mm), offering field reversibility, Hex Key Dogging, and a broad range of trim and electronic options to meet evolving facility needs. Engineered for dependable performance in high-traffic commercial environments where code compliance and long-term reliability are essential.