Von Duprin 5547-4ft 4ft Narrow Stile Crossbar Concealed Vertical Rod Exit Device, Grade 1, Field Reversible

Von Duprin 5547-4ft 4ft Narrow Stile Crossbar Concealed Vertical Rod Exit Device, Grade 1, Field Reversible

Commercial-Grade Concealed Vertical Rod Exit Device for Narrow Stile Metal Doors

The Von Duprin 5547-4ft is a 4-foot narrow stile crossbar concealed vertical rod exit device engineered for single or double metal door applications. UL listed for accident hazard installations, this device fits door stiles as narrow as 1-3/4" (44 mm) and is specified for 2-1/4" door thickness, accommodating door heights from 6'8" to 8'0". Certified to ANSI/BHMA A156.3, 2008 Grade 1 standards, the 5547-4ft delivers dependable, code-compliant egress performance in demanding commercial environments. The device is available in 3' and 4' lengths that are field sizeable for single and double door applications, and features a field-reversible door hand direction for installation flexibility.

Professional Features & Benefits

• Narrow Stile Compatibility: Fits door stiles as narrow as 1-3/4" (44 mm), making it ideal for narrow stile metal door applications where space is limited.
• Door Size Range: Specified for 2-1/4" door thickness and accommodates door heights from 6'8" to 8'0" for broad installation versatility.
• Product Dimensions: Hinge stile case and lock stile case each measure 7-1/4" x 1-1/4" x 2-1/4", with a product projection of 3-3/4" and a 48" overall product size.
• Latch Throw: Features a 1/2" latch throw for reliable latching performance in commercial door applications.
• ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3, 2008 Grade 1 certification, ANSI/UL 305, and CAN/ULC-S132 standards, ensuring top-tier performance and code compliance.
• Fire-Rated Option Available: All 55 Series devices can be ordered as fire rated by adding “-F” as a suffix, with ANSI/UL 10C and CAN/ULC-S104 compliance for fire-rated configurations.
• Field Reversible Handing: Door hand direction is field reversible, simplifying installation and reducing the need for special-order hardware.
• Hex Key Dogging: Equipped with hex key dogging configuration for convenient hold-open functionality in appropriate applications.
• Flexible Trim & Function Options: Compatible with multiple trim functions including Classroom, Dummy, Exit Only, Passage, and Storeroom, as well as popular 990 pull trim configurations.
• Electronic & Mechanical Options: Supports optional E8875 electrified trim (for pairing with access control, fire alarm, or remote switching systems), RX door position monitoring switch, and KN knurling on crossbars for tactile hazard warning.
• Fasteners Included: Comes with a 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
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Von Duprin Quality?

Von Duprin concealed vertical rod exit devices are built to meet the rigorous demands of commercial door hardware applications, with ANSI/BHMA A156.3, 2008 Grade 1 certification and compliance with ANSI/UL 305 and CAN/ULC-S132 standards. The 5547-4ft is engineered for narrow stile metal doors with stiles as narrow as 1-3/4", offering field-reversible handing and field-sizeable 4' length for single and double door configurations. Trusted by architects, contractors, and facility managers, Von Duprin exit devices deliver the professional-grade reliability required in high-traffic commercial environments.