Von Duprin 55-3ft Narrow Stile...
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Von Duprin 55-3ft Narrow Stile Crossbar Rim Exit Device - 3 ft, Grade 1, Field Reversible

Von Duprin 55-3ft Narrow Stile Crossbar Rim Exit Device - 3 ft, Grade 1, Field Reversible

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Model: 55 EO US26D-3
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$3,757.13
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Von Duprin 55-3ft Narrow Stile Crossbar Rim Exit Device - 3 ft, Grade 1, Field Reversible

Classic Crossbar Design for Narrow Stile Single and Double Door Applications

The Von Duprin 55-3ft Narrow Stile Crossbar Rim Exit Device delivers a classic crossbar aesthetic engineered for demanding commercial applications on single and double doors with mullion. Designed to fit door stiles as narrow as 1-3/4" (44 mm) and specified for 2-1/4" doors, this 3 ft (36") device is field reversible for flexible installation. Certified to ANSI/BHMA A156.3, 2008 Grade 1 and UL listed for accident hazard installations, the 55 Series is a trusted choice for retro-inspired architecture and historical buildings where a narrow stile crossbar solution is required.

Professional Features & Benefits

  • Narrow Stile Compatibility: Fits door stiles as narrow as 1-3/4" (44 mm), specified for 2-1/4" doors, making it ideal for narrow stile door applications in commercial settings.
  • Product Size & Dimensions: Available in 3 ft (36") length; case dimensions of 7-1/4" x 1-1/4" x 2-1/4" for both hinge stile and lock stile cases, with a product projection of 3-3/4".
  • Latch Throw: Features a 3/4" latch throw for reliable latching performance in commercial door applications.
  • Field Reversible Design: The device is field reversible, allowing adaptation to left- or right-hand door configurations without special ordering, reducing installation complexity.
  • ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3, 2008 Grade 1 certification along with ANSI/UL 305 and CAN/ULC-S132 standards, ensuring top-tier performance and code compliance. Fire-rated configurations (adding “-F" suffix) also meet ANSI/UL 10C and CAN/ULC-S104.
  • Multiple Device Type Configurations: Available as a rim device, surface-mounted vertical rods (27), concealed vertical rods (47), or mortise locks (75) to suit a wide range of door and opening requirements.
  • Versatile Trim Functions: Supports Classroom, Dummy, Exit Only, Passage, and Storeroom functions; popular 990 pull trim includes five standard functions for maximum flexibility.
  • Electronic & Mechanical Options: Compatible with E8875 electrified option for access control, fire alarm, or remote switching integration; RX switch for opening monitoring; KN knurling on crossbars for tactile hazard warning on doors leading to stairs, loading platforms, boiler rooms, and similar areas.
  • Fasteners Included: Comes with a screw pack for 1-1/4" and 2-1/4" thick metal/wood doors, with SNB included for straightforward installation.
  • Hex Key Dogging Configuration: Features hex key dogging for convenient hold-open functionality in appropriate applications.

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. SNB included
  • Product Subgroup: Exit Devices - Rim
  • Subcategory: Rim Exit Devices
  • Latch Throw: 3/4"
  • Product Type: Exit Devices - Rim
  • Commercial/Residential: Commercial
  • Stile Type: Narrow Stile
  • Wood Door Compatible: No
  • Product Model: 55-3'
  • Door Hand Direction: Reversible
  • Door Thickness Range: 1-3/4"
  • Product Size: 36"
  • 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
  • Historical and Retro-Inspired Architecture
  • Government and Municipal Buildings

Why Choose Von Duprin Quality?

Von Duprin 55 Series Rim Exit Devices are engineered to meet the rigorous demands of commercial door hardware applications, carrying ANSI/BHMA A156.3, 2008 Grade 1 certification and UL listing for accident hazard installations. The 55 Series supports a broad range of trim functions, electronic options including access control and monitoring integration, and is field reversible for installation flexibility. With case dimensions of 7-1/4" x 1-1/4" x 2-1/4", a 3/4" latch throw, and compatibility with door stiles as narrow as 1-3/4" (44 mm), this device is built to deliver dependable performance in high-traffic commercial environments.

Manufacturer Resources

Von Duprin 98/99 Series Catalog

Product Specs

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. SNB included
Product Subgroup:
Exit Devices - Rim
Subcategory:
Rim Exit Devices
Latch Throw:
3/4"
Product Type:
Exit Devices - Rim
Commercial/Residential:
Commercial
Stile Type:
Narrow Stile
Wood Door Compatible:
No
Tags:
von duprin 55 series, von duprin 55, von duprin 55 exit device, von duprin 55 series exit devices, von duprin series 55, von duprin 55 series panic bar
Product Model:
55-3'
Door Hand Direction:
Reversible
Door Thickness Range:
1-3/4"
Product Size:
36"
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

Parts & Accessories

    Von Duprin 55 EO US26D-3 – Frequently Asked Questions

    1) Will a Von Duprin 55 rim exit device fit a narrow stile aluminum storefront door?
    The 55 crossbar rim device works down to a stile as narrow as 1-3/4 inches (44 mm), which covers most narrow stile aluminum entrances. Two other numbers decide the fit: the 3 ft version is 36 inches long, so the leaf has to carry that length, and the device projects 3-3/4 inches off the door face, which matters where the leaf swings back against a wall, a sidelite return, or another leaf. Door thickness is 1-3/4 inches. Each case measures 7-1/4 x 1-1/4 x 2-1/4 inches at both the hinge stile and lock stile end, so check that against any glass stop or vision lite in the way.
    2) Can I put a Von Duprin 55 exit device on a pair of doors?
    Yes, with a mullion. The 55 rim device is specified for single doors and for pairs with a mullion, because a rim device latches into a strike rather than into the head and threshold, and on a pair that strike has to be mounted on a mullion between the leaves. If the opening has to stay clear from jamb to jamb (moving equipment, wide loads), the 55 Series is also built as a surface vertical rod (27), a concealed vertical rod (47), and a mortise lock (75) device. Vertical rod versions latch at the head and the sill, so they secure a pair without a center mullion.
    3) Is the Von Duprin 55-3ft exit device fire rated for a labeled door?
    No. The 55-3ft is not fire rated, so keep it off labeled fire door assemblies. It is UL listed for accident hazard (panic) use and certified to ANSI/BHMA A156.3, 2008 Grade 1, along with ANSI/UL 305 and CAN/ULC-S132, which is the panic hardware side of the standard, not the fire door side. For a labeled narrow stile opening, the Adams Rite 3700 Series is a fire rated Grade 1 narrow stile rim device.
    4) Will the Von Duprin 55 latch into the rim strike already on my frame?
    The 55 throws a 3/4 inch latchbolt into a surface mounted rim strike on the frame or mullion. If what is on your opening now is another rim device striking a surface strike, the geometry is the same family of install, but the strike has to line up with the new device's lock stile case, which measures 7-1/4 x 1-1/4 x 2-1/4 inches. Plan on setting the strike to the new device rather than assuming the old one lands right. A device that latches at the head and sill (vertical rod) uses top and bottom strikes instead and will not reuse a rim strike at all.
    5) What outside trim do I need to specify with a Von Duprin 55 exit device?
    Decide first whether anyone comes in through that door. Exit only (EO) means push bar out, no outside operation at all. Night latch (NL) puts a cylinder outside so a key retracts the latch, and NL-OP adds the optional pull with that cylinder assembly. Lever trim (L) gives a lever outside, L-BE is the lever with a blank escutcheon where no cylinder is wanted, and DT is dummy trim for a pull with no operation. The 990 pull trim covers five standard functions, so Classroom, Storeroom, Passage, Dummy, and Exit Only are all reachable off the same device.
    6) Can the Von Duprin 55-3ft go on a wood door, and what should I use if it cannot?
    The Von Duprin 55-3ft is a commercial rim exit device that is not wood door compatible. Adams Rite builds two narrow stile rim devices that are: the 8700 Series 30 inch is Grade 1, narrow stile, non fire rated and wood door compatible, and the 3700 Series 30 inch is Grade 1, narrow stile, wood door compatible and fire rated for a labeled wood opening. Both keep the narrow stile fit the 55-3ft was chosen for.
    7) What are the closest Grade 1 narrow stile rim exit devices to the Von Duprin 55-3ft in a 36 inch length?
    Three line up closely on the specs that decide the opening. The Corbin Russwin ED4200 is a Grade 1 36 inch narrow stile rim exit device for 1-3/4 inch doors that runs exit only or accepts trim. The Falcon 19-R is a Grade 1 36 inch narrow stile rim device, exit only, also for 1-3/4 inch doors. The Detex 40 Advantex is an extra heavy duty Grade 1 narrow stile rim device. All three match the 55-3ft on Grade 1 certification and narrow stile fit; the 55-3ft is the crossbar style device of the group and is field reversible for either hand.
    8) What is the fire rated alternative to the Von Duprin 55-3ft narrow stile crossbar exit device?
    The Von Duprin 55-3ft is not fire rated, so a labeled opening needs a device certified for it. The Adams Rite 3700 Series 30 inch rim exit device is fire rated, Grade 1 and narrow stile, so it holds the narrow stile fit while covering the label. If the stile is not the constraint, the Dexter ED1000 Series fire rated rim device is Grade 1, and the Orca Hardware OED85 Series and Marks USA M9900F are fire rated rim exit devices in the same 36 inch length as the 55-3ft.
    9) What rim device works on a pair of narrow stile doors with no mullion between them?
    The Von Duprin 55-3ft is engineered for single doors and for pairs with a mullion, because a rim device needs a strike to latch into. On a pair with no mullion, Adams Rite makes interlocking narrow stile rim devices: the 8800 Series 30 inch with starwheel interlocking is Grade 1, narrow stile, and covers doors 1-3/4 inch to 2-1/4 inch thick, and the EX88 is a Grade 1 narrow stile interlocking rim device. The 8700 Series 30 inch is the starwheel interlocking device that also carries wood door compatibility.
    10) Is an SDC switch bar or a Securitron EMB a substitute for the Von Duprin 55-3ft?
    They solve a different problem. The Von Duprin 55-3ft is a mechanical rim exit device with a 3/4 inch latch throw that latches the door itself. The SDC MSB550 Series 36 inch is a mechanical switch bar with electromagnetic lock release, the SDC SureExit PSB560 Series 36 inch is a pressure sense bar with tri-failsafe technology, and the Securitron EMB is an electromechanical exit bar listed for 2-1/4 inch doors. Those are the answer when the opening is secured by a separate electrified or electromagnetic lock; the 55-3ft is the answer when the door needs its own latch.
    11) Do I have to order the Von Duprin 55 handed, left or right?
    Handing is not a separate part number problem here. The 55 is field reversible, so one device covers left hand reverse and right hand reverse openings and the reversal is done at install rather than by special order. That is useful for a property manager carrying spares across a building: one device on the shelf fits whichever leaf fails.
    12) Can I hold a Von Duprin 55 exit device unlocked during business hours?
    Yes. The 55-3ft comes with hex key dogging, so a hex key holds the crossbar depressed and the latch retracted, and the door pushes free from either side until you undog it. That is the normal setup for a retail or office entrance that stays open all day and locks at close. Dogging is only appropriate on non fire rated openings, which is what this device is.
    13) Can a Von Duprin 55 exit device be tied into an access control system?
    Two paths, and they answer different needs. RX (request to exit) is an orderable switch that signals the access control panel when the crossbar is pushed, so the alarm knows a legitimate exit happened and the door is monitored. For actual electric control of the outside trim, the 55 works with the E8875 electrified option for access control, fire alarm interface, or remote switching. If you only need to know the door was used, RX alone does it; if you need to lock and unlock the outside lever remotely, you need the electrified option.
    14) Is an SDC switch bar or a Securitron exit bar the same thing as a Von Duprin 55 rim exit device?
    No, and swapping one for the other leaves the door unsecured. The 55 is a mechanical rim device with its own 3/4 inch latchbolt that holds the door shut on its own. The SDC MSB550 is a mechanical switch bar that releases an electromagnetic lock, the SDC SureExit PSB560 is a pressure sense bar, and the Securitron EMB is an electromechanical exit bar. Those bars signal or release electrified locking hardware and depend on it being there and powered. If your opening has a maglock, a switch bar is the right part. If the door has to latch mechanically, you want the rim device.
    15) Does the Von Duprin 55 exit device come with mounting hardware, or do I need to order fasteners separately?
    Fasteners ship with the device. A screw pack is included along with SNB (sex nuts and bolts), which is what you use to through bolt the device on a metal door rather than relying on screws in thin material. What is not included is the outside trim or cylinder: those are separate line items you pick by function, so an NL or lever configuration still needs its trim and, for keyed functions, a cylinder ordered alongside.
    16) I want a crossbar exit device but the door is wide stile - what are the alternatives to the Von Duprin 55?
    The Von Duprin 55-3ft is a crossbar device built to fit stiles as narrow as 1-3/4 inch, which is more stile capability than a wide stile door needs. For a wide stile opening in a crossbar style, the Corbin Russwin ED3200 is a Grade 1 48 inch crossbar rim exit device for wide stile doors 1-3/4 inch thick, supplied as a panic device only, and the CRL Jackson 1095 Series is a 48 inch crossbar rim panic device for wide stile doors in exit only function.
    17) My door is wider than 36 inches - which rim exit devices cover it instead of the Von Duprin 55-3ft?
    The Von Duprin 55-3ft is a 36 inch device. To stay narrow stile on a wider leaf, the Falcon 1590EO and the Falcon 1790EO are Grade 1 narrow stile rim exit devices at 42 inches, exit only, for 1-3/4 inch doors. At 48 inches, the Dexter ED1000 Series 4FT is Grade 1, the Corbin Russwin ED3200 is a Grade 1 48 inch crossbar for wide stile doors, and the Sargent 2828 is a Grade 1 reversible rim exit device rated for a 48 inch minimum door width.
    18) Which narrow stile exit device gives key access from the outside, like the Von Duprin 55 night latch?
    The Von Duprin 55-3ft handles it through trim selection: night latch and night latch with optional pull are two of its trim functions, alongside dummy trim, exit only, lever, and lever with blank escutcheon. If you would rather buy the function as the device rather than as a trim choice, the Sargent 8504 is a Grade 1 narrow stile rim exit device supplied in night latch function.
    19) The opening needs top and bottom latching instead of a rim strike - what replaces the Von Duprin 55-3ft?
    The Von Duprin 55-3ft is a rim exit device, so it latches into a strike on the frame or mullion with a 3/4 inch throw. When the opening calls for vertical rod latching at the head and sill of a narrow stile door, the Hager 4601 Series is a Grade 1 concealed vertical rod narrow stile exit device in the same 36 inch length. On a wide stile pushpad door, the Hager 4501 Series 36 inch is the Grade 1 concealed vertical rod equivalent.
    20) Is the Orca OED55 36 inch rim device the same as the Von Duprin 55?
    No. Different manufacturers, and the 55 in each model designation is a coincidence of numbering. The Orca Hardware OED55 Series 36 inch is a non fire rated rim exit device supplied in exit only function. The Von Duprin 55-3ft is a Grade 1 narrow stile crossbar rim device ordered in dummy trim, exit only, lever, lever with blank escutcheon, night latch, or night latch with optional pull. Order against the full part number rather than the number 55, and confirm which one the drawing calls out.
    21) What are the electrified alternatives when the exit device has to run on access control?
    The Von Duprin 55-3ft can be ordered with an RX request to exit switch for monitoring the opening. When the device itself has to be electrified, the Dormakaba E2103 is an electrified 36 inch rim exit device supplied with 4908A trim in classroom function, the SDC S6136 Spectra S6000 Series 36 inch is an electrified architectural rim device built for a 4 inch wide stile and doors 1-3/4 inch to 2 inch thick, and the Sargent 12-8810 is a fire rated wide stile rim device with RX and MELR. The SDC S6136 and the Sargent 12-8810 are wide stile devices, so the narrow stile fit of the 55-3ft is the deciding factor on a 1-3/4 inch stile.
    22) Which comparable rim exit devices also dog open with a hex key?
    The Von Duprin 55-3ft uses hex key dogging to hold the latch retracted for daytime traffic. Among comparable rim devices, the Stanley Security QED200 Series is a Grade 1 heavy duty narrow stile rim exit device with hex key dogging, and the Design Hardware 1000R is a 33 inch heavy duty rim device with hex key dogging, with the 2000R the standard duty wide stile version of the same 33 inch device. The Dormakaba QED200 is a Grade 1 heavy duty narrow 36 inch device in the same series family as the Stanley QED200.
    23) What is the knurled crossbar option on the Von Duprin 55 for?
    KN knurling is a tactile warning. The ridged crossbar tells someone by feel that the door leads somewhere hazardous, which is why it gets specified on doors to stairs, loading platforms, boiler rooms, and similar spaces. If the opening is an ordinary exit to a sidewalk or corridor, the standard smooth crossbar is what you want.
    24) What finishes does the Von Duprin 55 crossbar exit device come in for matching hardware across a building?
    Eight finishes cover the 55: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome, 643E aged bronze, and 693 black. For a portfolio standardizing on one look, 626 satin chrome and 613 oil rubbed bronze are the two that most often match existing lever and closer hardware, and the brass and aged bronze options are why the 55 gets specified on historical and retro entrances where a chrome touchbar would look wrong.
    25) If I want one device that stocks for both hands, is the Von Duprin 55-3ft handed?
    The Von Duprin 55-3ft is field reversible, so one device adapts to a left or right hand opening at installation rather than being ordered by hand. If you would rather the device be non-handed from the box, the BEST 2401 Series is a non-handed narrow stile rim exit device in exit only function, the BEST Precision 5101 Series is a non-handed universal rim exit device, and the CRL Jackson 1295 Series is a non-handed push pad rim panic device for wide stile doors 1-3/4 inch thick.
    26) What are the options when the job does not call for an ANSI Grade 1 exit device?
    The Von Duprin 55-3ft is certified Grade 1, which is what a specification citing ANSI/BHMA Grade 1 requires. Where the spec allows Grade 2, the Cal-Royal 5000 is a 36 inch wide rim exit device with a touch bar and a Grade 2 heavy duty chassis, and the Cal-Royal 5500 is a 48 inch push bar rim device, also Grade 2 and heavy duty. Confirm what the drawing calls for before substituting, since the grade is usually the line item being checked at inspection.
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    Absolutely. The Von Duprin 55 EO US26D-3 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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