Von Duprin RX-LC-QEL-3549A-NL-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$6,071.31
$4,729.90
Von Duprin Concealed Vertical Rod Panic w/388 Trim, Allegion Connect and Quiet Electric Latch Retraction

Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON Concealed Vertical Rod Exit Device with 388 Trim, Allegion Connect, and Quiet Electric Latch Retraction

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Model: RX-LC-QEL-3549A-NL-OP-36-626-CON
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Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON Concealed Vertical Rod Exit Device with 388 Trim, Allegion Connect, and Quiet Electric Latch Retraction

Commercial-Grade Concealed Vertical Rod Panic Exit Device with Electrified Access Control Integration

The Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON is a professional-grade concealed vertical rod (CVR) panic exit device engineered for hollow metal single and double doors in demanding commercial environments. This UL listed device meets ANSI A156.3 – 2008 (LBL option 2014) Grade 1 standards and accommodates door sizes from 2' to 4' with a 36" product width. Featuring Quiet Electric Latch Retraction (QEL), Request to Exit with Low Current option (RX-LC), and Allegion Connect (CON) integration, this device delivers advanced electrified access control capability. The brushed satin chrome (626) finish provides both aesthetic appeal and long-term durability for high-traffic applications.

Professional Features & Benefits

  • Comprehensive Dimensional Specifications: Device centerline from finished floor is set at 39 13/16" (1006mm); compact center case measures 8 13/16" x 2 13/32" x 1 9/16" (208mm x 62mm x 40mm); mechanism case is 2 1/4" x 2 1/4" (57mm x 57mm); top and bottom latch case measures 5 13/16" x 1 1/4" x 1 7/16" (147mm x 32mm x 37mm).
  • Door Width & Size Compatibility: Accommodates 36" door width and door sizes from 2' to 4' (610mm to 1219mm), with product height range of 82–96", providing versatile fit for a wide range of commercial door configurations.
  • Deadlocking Anti-Friction Latch Bolt: Top and bottom bolt with 1/2" (13mm) throw ensures secure, reliable locking; door undercut maximum of 3/4" (19mm); vertical cables constructed of 7/32" (6mm) diameter stainless steel for robust concealed rod operation.
  • Push Bar Projection: Push bar neutral projection of 3 13/16" (97mm) and depressed projection of 3 1/16" (78mm) for ergonomic, code-compliant egress operation.
  • Advanced Electrified Options: Equipped with Quiet Electric Latch Retraction (QEL) for silent electrified operation, Request to Exit with Low Current option (RX-LC) for access control integration, and Allegion Connect (CON) for smart building connectivity. Additional electrified options available include ALK, CX, EL, ESL, HD-EL, LX, LX-RX, WP-RX, SS, and more.
  • Night Latch, Operational Pull (NL-OP) Trim: 388 trim with Night Latch, Operational Pull configuration — key retracts latchbolt with pull required — using a rim cylinder for secure outside access control.
  • Non-Handed & Flexible Installation: Smooth mechanism case design is non-handed, providing flexible installation options for both single and double hollow metal doors. Hex key dogging standard; additional dogging options include CD, CDSI, HDSI, and LD.
  • Grade 1 Certified Performance: UL listed and meets ANSI A156.3 – 2008 (LBL option 2014) Grade 1 standards for robust performance and safety in commercial applications.
  • Fasteners Included: Includes sex bolts (SNB) for 1 3/4" (44mm) to 2 1/4" (57mm) metal doors; #425 SNB furnished standard for end case; #325 SNB furnished standard for EO (exit only) devices.
  • Satin Chrome Finish (626): Brushed satin chrome finish contributes to aesthetic appeal and ensures durability in high-use commercial environments. Additional available finishes include 605, 606, 612, 619, 622/711, 625, 626AM, 628, 630, 630AM, 643e, 693, and 710.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 33/35 Series
  • Grade: Grade 1
  • Product Subgroup: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Type: Exit Devices Parts
  • Commercial/Residential: Commercial
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Function: Night Latch, Opt. Pull
  • Dogging Configuration: HD - Hex Dogging
  • Fire Rating: No
  • Strike Classification: Vertical Rod Bottom Strike, Vertical Rod Top Strike
  • Product Height: 82-96"
  • Product Category: Exit Devices and Trim
  • Product Width: 36"
  • 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 engineered to meet the most demanding commercial security and life-safety requirements, with UL listing and ANSI A156.3 – 2008 Grade 1 certification confirming robust performance and reliability. The RX-LC-QEL-3549A-NL-OP-36-626-CON integrates Quiet Electric Latch Retraction, Request to Exit with Low Current, and Allegion Connect technology into a non-handed, smooth mechanism case design suitable for hollow metal single and double doors from 2' to 4'. Engineered for demanding commercial applications where dependable performance, code compliance, and advanced access control integration are essential.

Product Specs

Product Group:
Exit Devices and Trim
Series:
33/35 Series
Grade:
Grade 1
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Type:
Exit Devices Parts
Commercial/Residential:
Commercial
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Function:
Night Latch, Opt. Pull
Dogging Configuration:
HD - Hex Dogging
Fire Rating:
No
Strike Classification:
Vertical Rod Bottom Strike, Vertical Rod Top Strike
Product Height:
82-96"
Product Category:
Exit Devices and Trim
Product Width:
36"
Department:
Door Hardware

Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON – Frequently Asked Questions

1) What door widths and heights does the Von Duprin 3549A concealed vertical rod device cover?
The 3549A is a 36 inch device covering door widths from 2 feet to 4 feet (610mm to 1219mm), with a door height range of 82 to 96 inches. The device is sized to the leaf, so on a pair each leaf gets its own device.
2) Can I use a concealed vertical rod exit device on a pair of doors without a mullion?
Yes, that is the main reason to pick CVR. The 3549A latches at a vertical rod top strike and a vertical rod bottom strike inside the door, so a pair latches leaf to leaf with a clear opening and no center mullion. If you would rather use rim devices on a pair, you need a removable mullion instead, like the Falcon 4023 steel mullion.
3) How much undercut can I have at the bottom door with this Von Duprin concealed rod device?
Maximum door undercut is 3/4 inch (19mm). The top and bottom bolts throw 1/2 inch (13mm), so if the gap under the door exceeds 3/4 inch the bottom bolt will not engage the floor strike reliably. Check your threshold and floor covering build-up before you order.
4) What does the NL-OP trim function on the 3549A actually do from the outside?
NL-OP is night latch with operational pull: the key retracts the latchbolt but you still have to pull the door open, using the 388 trim with a rim cylinder. It is not a lever function, so there is no outside latch operation without the key. The rim cylinder is specified separately from the device.
5) Does the Von Duprin 3549A meet Grade 1 for a school or hospital spec?
Yes. It is UL listed and meets ANSI A156.3 - 2008 (LBL option 2014) Grade 1, which is the level most institutional specs call for on high traffic egress doors. It is a commercial-duty device, and it is not fire rated, so on rated openings you will need fire exit hardware instead.
6) Can the Von Duprin 3549A CVR device be used on a fire-rated opening, or is there a different part for that?
The RX-LC-QEL-3549A-NL-OP-36-626-CON is a non-fire-rated panic device, so it belongs on egress openings that do not carry a fire label. Among adjacent exit device components, the Accentra 60-7010-0050-999 top latch is the part that serves the fire-rated 7110F device, while the 60-7010-0049-999 serves the non-rated 7110/7120 - a reminder that the F-suffix device and the standard device do not share latching components. For a labeled opening, specify a fire exit hardware device rather than this panic device.
7) Is the Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON a complete exit device or a latch replacement part like the Accentra 7110/7120 top latch?
The RX-LC-QEL-3549A-NL-OP-36-626-CON is a complete concealed vertical rod panic exit device for a 36 inch door, supplied with 388 night latch / optional pull trim, Quiet Electric Latch Retraction, RX-LC and Allegion Connect, and both vertical rod top and bottom strikes. The Accentra 60-7010-0049-999 is a top latch replacement component for the 7110/7120 exit device, and the 60-7010-0050-999 is the top latch replacement component for the 7110F. Those Accentra items rebuild an existing Accentra device rather than outfitting a door, so if you are hanging new hardware or converting an opening to electric latch retraction, the Von Duprin device is the item; if you are repairing an Accentra 7110 or 7120 that fails to latch at the head, the Accentra component is.
8) For a pair of doors, do I need a mullion with the Von Duprin 3549A concealed vertical rod device?
No. The 3549A CVR device latches into vertical rod top and bottom strikes in the frame head and the floor or threshold, so each leaf secures on its own and the opening stays clear. A mullion such as the Falcon 4023 steel mullion is the accessory used when double doors are fitted with rim exit devices that need a vertical member to latch against, and Falcon 525 aluminum mullion stabilizers support that type of installation. Choose the CVR device when the customer wants an unobstructed pair; choose rim devices plus a mullion when you want the latching hardware surface-applied and serviceable on the face of the door.
9) Does this Von Duprin CVR device need to be ordered handed?
No handing to specify. The 3549A uses a non-handed smooth mechanism case and installs on either hand of a hollow metal single or double door.
10) What is the difference between QEL and standard EL latch retraction on Von Duprin devices?
QEL is quiet electric latch retraction, built for silent electrified operation, which is why it gets specified in healthcare, education and office corridors where a solenoid thump is a problem. Von Duprin also offers EL and HD-EL retraction, plus ALK, CX, ESL, LX, LX-RX, WP-RX and SS options on this family if you need a different electrified behavior.
11) What does the RX-LC option add on this exit device, and can I tie it to my access control panel?
RX-LC is a request-to-exit switch with a low current draw, so the device signals your access control system when the push bar is depressed, typically to shunt an alarm or release a door position input. This build also carries Allegion Connect (CON) for smart building connectivity alongside the QEL latch retraction.
12) How far does the Von Duprin 3549 push bar stick out into the opening?
Push bar projection is 3 13/16 inches (97mm) at rest and 3 1/16 inches (78mm) depressed. Use the neutral figure when you are checking clearance against a door stop, an adjacent wall, or a pair of doors swinging into each other.
13) What mounting height and case sizes do I need for the door prep on the 3549A?
Device centerline from finished floor is 39 13/16 inches (1006mm). Center case measures 8 13/16 x 2 13/32 x 1 9/16 inches (208 x 62 x 40mm), the mechanism case is 2 1/4 x 2 1/4 inches (57 x 57mm), and each latch case is 5 13/16 x 1 1/4 x 1 7/16 inches (147 x 32 x 37mm). Von Duprin publishes hollow metal and wood door prep template indexes for laying the cuts out.
14) Are fasteners included with the Von Duprin 3549A, and what door thickness do they cover?
Sex bolts (SNB) come with the device and suit 1 3/4 inch (44mm) to 2 1/4 inch (57mm) metal doors. The #425 SNB is furnished standard for the end case, and #325 SNB for exit only devices. Standard commercial hollow metal at 1 3/4 inches is covered without ordering anything extra.
15) I just need a replacement top latch or rod, not a whole exit device. What should I look at?
If you are servicing rather than replacing, component parts are sold separately by brand and device family. For Von Duprin concealed vertical rod work, match the part to your exact device series. Other brands' service parts include the Accentra 7110/7120 top latch replacement, the Falcon 610061 24 Series Monarch concealed vertical top rod for F-25-C and F-25-CWDC devices, and the Falcon T Series 2-3/8 inch square corner deadlatch. Those are not interchangeable with Von Duprin hardware.
16) Can I dog this Von Duprin device open during business hours?
Yes. Hex key dogging is standard on the 3549A, so you can hold the push bar depressed and leave the latches retracted for daytime traffic. Cylinder dogging (CD), CDSI, HDSI and LD are the other dogging options in the family. Dogging is only usable because this is a non-rated device.
17) What cylinder do I need for the NL-OP trim on the Von Duprin 3549A, and will an SFIC housing work?
The 388 trim on the RX-LC-QEL-3549A-NL-OP-36-626-CON is a night latch with optional pull, where the key retracts the latchbolt and a pull is required, and it takes a rim cylinder. If the facility keys in small format interchangeable core, a rim housing such as the Arrow 16RCR-27 6/7-pin SFIC rim housing is the style of cylinder that carries an SFIC core in a rim application; note it is catalogued to Arrow's 24/25 Series. Confirm the housing's cam and tailpiece match Von Duprin rim cylinder prep before ordering it against this device.
18) My existing concealed vertical rod device just needs a new top rod - is the Von Duprin 3549A the right order?
Not if the device body is sound. The RX-LC-QEL-3549A-NL-OP-36-626-CON is a full Grade 1 CVR device with electric latch retraction and Allegion Connect, sized for a 36 inch door. If you only need the concealed rod itself on a Falcon Monarch device, the Falcon 610061 is a 24 Series Monarch concealed vertical top rod for F-25-C and F-25-CWDC devices. Order the Von Duprin device when you are replacing the whole assembly or adding QEL and access control capability to the opening.
19) What finish options does Von Duprin offer on the 33/35 Series besides 626 satin chrome?
This build is 626 brushed satin chrome. The 33/35 Series also runs in 605, 606, 612, 619, 622/711, 625, 626AM, 628, 630, 630AM, 643e, 693 and 710, which matters if you are matching exit devices across a building already standardized on a different finish.
20) Is a deadlatch replacement part an alternative to the Von Duprin 3549A CVR exit device?
No - they solve different problems. The Falcon 23981160 is a 2-3/8 inch square corner deadlatch replacement part for Falcon T Series exit hardware, a service item for an existing device. The RX-LC-QEL-3549A-NL-OP-36-626-CON is a complete concealed vertical rod panic device covering 82 to 96 inch door heights with hex dogging and night latch / optional pull trim. Use the Falcon part only to restore a T Series unit; use the Von Duprin device when the opening needs panic hardware supplied.
How fast can I get the Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON come with a warranty?
Absolutely. The Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Von Duprin RX-LC-QEL-3549A-NL-OP-36-626-CON from ZenSupply?
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