Sargent AD8474 Fail Secure Ele...
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Sargent AD8400 Series - (AD8474) Fail Secure Electrified Trim Function Narrow Stile Concealed Vertical Rod

Sargent AD8474 Fail Secure Electrified Concealed Vertical Rod Exit Device for Narrow Stile Applications

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Model: AD8474E 10BE
From the AD8400 Series Collection
$4,188.11
$2,822.72
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$4,188.11
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Sargent AD8474 Fail Secure Electrified Concealed Vertical Rod Exit Device with Narrow Stile Design

Professional Fire-Rated Exit Device for Narrow Stile Applications

The Sargent AD8474 is a fail secure electrified concealed vertical rod exit device from the 8400 Series, specifically engineered for narrow stile applications requiring only 1-3/4" minimum stile width. This UL Fire and Panic listed device accommodates hollow metal doors from 1-3/4" to 2-1/4" thick with factory-cut rails sized by door width: E Rail for 24" to 32" doors, F Rail for 33" to 36" doors, J Rail for 37" to 42" doors, and G Rail for 43" to 48" doors. Features stainless steel construction with comprehensive electric options for demanding commercial applications.

Professional Features & Benefits

  • Narrow Stile Compatibility: Requires only 1-3/4" minimum stile width with hollow construction and 1-3/8" square inside dimension for versatile door compatibility in challenging configurations.
  • Door Thickness Range: Accommodates hollow metal doors from 1-3/4" to 2-1/4" thick for flexible installation options across various door types.
  • Factory-Cut Rail System: Four rail sizes available - E Rail (24" to 32"), F Rail (33" to 36"), J Rail (37" to 42"), and G Rail (43" to 48") for precise door width compatibility.
  • Fire Safety Compliance: UL Fire and Panic listed with 650 Top Strike and 606 Bottom Strike for comprehensive fire-rated applications and code compliance.
  • Fail Secure Operation: Electrified trim function provides secure access control with reliable fail secure operation for enhanced security in critical applications.
  • Comprehensive Electric Options: Available with AL-Alarm, BT-Beacon, PL-SARGuide Photoluminescent, TL-SARGuide Illuminated Touchpad, and monitoring options 53-59 including LX Latchbolt Monitor, Outside Lever Monitoring, Request-to-Exit Signal, Remote Latch Retraction, Delay Egress, Electric Dogging, and Electroguard Self Contained Delayed Egress.
  • Stainless Steel Construction: Features stainless steel top bolt for exceptional durability and corrosion resistance in demanding commercial environments.
  • Flexible Mounting Heights: Device centerline at 41" for standard applications or 38" for elementary schools and accessibility compliance with 100 Series Auxiliary Control.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm door preparation meets specifications for hollow metal doors 1-3/4" to 2-1/4" thick with minimum 1-3/4" stile width.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the device using manufacturer-provided templates ensuring proper rail size selection based on door width and centerline height of 41" standard or 38" for accessibility applications.
  4. Route and connect wiring according to manufacturer wiring diagrams for fail secure operation and any selected electric options. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including fail secure mode and any electric options such as alarm, monitoring, or delayed egress functions per application requirements.
  6. Restore power and test all functions including normal operation, electric trim function, alarm/monitoring systems, and integration with connected access control systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Commercial Building Security Systems
  • Educational Facility Fire Safety
  • Healthcare Institution Access Control
  • Government and Municipal Buildings
  • Industrial Facility Emergency Exits
  • Multi-Tenant Residential Fire Exits
  • Retail Establishment Security

Why Choose Sargent Quality?

Sargent AD8400 Series exit devices deliver professional-grade reliability with UL Fire and Panic listing and stainless steel construction for demanding commercial applications. The narrow stile design accommodates challenging door configurations while maintaining full fire safety compliance. Engineered for critical access control applications where dependable fail secure operation and fire safety are essential.

Product Specs

Series:
AD8400 Series
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Devices - Mortise
Product Type:
Exit Devices - Mortise
Subcategory:
Mortise Exit Devices
Commercial/Residential:
Commercial
Stile Type:
Narrow Stile
Lock Function:
Electrified
Grade:
Grade 1
Model Series:
AD8400 Series
Product Model:
AD8474
Product Function:
Electrified
Product Category:
Exit Devices and Trim
Collection:
AD8400 Series
Department:
Door Hardware

Sargent AD8474E 10BE – Frequently Asked Questions

1) Which rail size do I order for the Sargent AD8474 based on my door width?
Rails are factory cut to door width, so measure the leaf before ordering. E Rail covers 24 to 32 inch doors, F Rail covers 33 to 36 inches, J Rail covers 37 to 42 inches, and G Rail covers 43 to 48 inches. The ordering sizes offered are 32, 36, 42 and 48 inches, which correspond to the top of each of those four bands. Since the rail is cut at the factory, ordering the wrong band means the device does not fit the door, and it is not something you trim in the field.
2) Is the Sargent AD8474 handed, and how do I determine which hand to order?
Handing is required and it is not field reversible on this device. You order either RHR (right hand reverse) or LHR (left hand reverse). Exit devices are always specified in the reverse hands because the door swings out toward you when you are standing outside it: stand on the outside of the door, and if the hinges are on your left the door is left hand reverse, hinges on the right is right hand reverse. Get this wrong and the trim and latching will be on the wrong side of the opening. If you need a field reversible narrow stile mortise device instead, the Von Duprin 5575 is listed as field reversible.
3) What does fail secure mean on the Sargent AD8474 electrified trim, and what happens in a power failure?
Fail secure means the outside lever trim stays locked when power drops. Egress is unaffected: the push rail always retracts the latches from the inside, so people can always get out whether or not the device is powered. What you lose in an outage is electrical control of entry from the outside, so anyone coming in needs a key or mechanical override. That is the correct choice for a secured perimeter or a tenant space, but the wrong one if your access control scheme or local authority requires the opening to unlock on power loss, in which case you need a fail safe device instead.
4) Can I get the Sargent AD8474 with request to exit or latchbolt monitoring for my access control system?
Yes, and there are several distinct options, so specify the right one. 53 is a latchbolt monitor switch, 54 is an internal micro switch in the ET control (outside lever monitoring), 55 is a signal switch in the rail (request to exit), 56 is remote dogging or latch retraction, 58 is electric dogging, and 59 is Electroguard self contained delayed egress. If the panel needs to know the door is physically latched, that is the 53 latchbolt monitor. If it needs to shunt an alarm when someone pushes the rail, that is the 55 signal switch. Integrators often need both, and they are ordered separately.
5) Can I dog down the Sargent AD8474 to hold the latch retracted during business hours?
Only on the standard rating, not the fire rated version. Fire rated is ordered as Less Dogging, because a fire door has to latch on every closure and mechanical dogging would defeat that. On a standard (non fire rated) opening you can specify 58 electric dogging or 56 remote dogging and latch retraction to hold the latch back on a schedule from the access control system. If your opening is in a fire rated wall assembly, plan for the device to latch every time and use an electric strike or access control on the trim side for daytime free entry instead.
6) Is the Sargent AD8474 fire rated and UL listed for a fire door opening?
UL Fire and Panic listed, and it ships with a 650 top strike and 606 bottom strike for fire rated applications. Order it in the Fire Rated (Less Dogging) configuration for a fire door, since the standard configuration is a panic only device. It is also Grade 1, the heaviest duty classification, which is what most institutional and commercial specifications call for.
7) What is the narrow stile alternative to the Sargent AD8474 if I do not need a fire rating or electrified trim?
For a narrow stile opening without a fire rating, two Grade 1 alternatives are worth looking at. The Adams Rite 8400 Series is a narrow stile life safety mortise exit device built for aluminum doors, not fire rated. The Von Duprin 5575 is a narrow stile crossbar mortise exit device, Grade 1, field reversible, for 1-3/4 inch doors, also not fire rated. Both are mortise devices, meaning they latch into the jamb at one point rather than at head and threshold, so they need a mortise pocket in the stile rather than a hollow rod run. Neither is a match if your opening is in a fire rated assembly, where you want the AD8474 in its Fire Rated configuration.
8) Will the Sargent AD8474 work on a wood door?
No. The AD8474 is specified for hollow metal doors from 1-3/4 to 2-1/4 inches thick, and the concealed rods require hollow stile construction with a 1-3/8 inch square inside dimension, which a solid wood leaf does not provide. For a wood door, the Adams Rite 3300 Series is a fire rated wide stile mortise exit device listed for wood and hollow metal, and the 8300 Series is the non fire rated equivalent for the same door types.
9) What narrow stile mortise exit device can I use instead of the Sargent AD8474 on an aluminum storefront door?
The Adams Rite 8400 Series is a narrow stile mortise exit device built for aluminum doors, and it carries a Grade 1 rating like the Sargent AD8474. The difference to weigh before you order: the Adams Rite 8400 is not fire rated, while the AD8474 is offered in a Fire Rated (Less Dogging) configuration. On a fire-rated aluminum opening the AD8474 is the one that holds the rating; on a non-rated storefront exit the Adams Rite 8400 covers the same narrow stile geometry.
10) Is the Von Duprin 5575 a substitute for the Sargent AD8474 on a narrow stile door?
Both are Grade 1 narrow stile mortise lock exit devices, so the stile width class matches. Two differences decide it. The Von Duprin 5575 is a crossbar device and is field reversible, listed for 1-3/4 inch door thickness; the Sargent AD8474 is a push rail device ordered by handing, RHR or LHR, with a factory-cut rail sized to door width. The 5575 is also not fire rated, while the AD8474 is available Fire Rated (Less Dogging). If the opening is fire rated or the specification calls for electrified trim, the 5575 does not stand in.
11) Do I need 12V or 24V for the Sargent AD8474, and can I change it later?
Voltage is a required order choice, 12V or 24V, so match it to the power supply feeding the opening before you order. Access control panels and dedicated lock power supplies are commonly one or the other, and the two are not interchangeable at the device. Confirm the supply output and its available current draw at the door before you place the order, particularly if you are also running electric options like remote latch retraction or electroguard off the same supply.
12) Why choose a concealed vertical rod exit device over a rim device or a mortise exit device?
A concealed vertical rod latches at the head and at the threshold, with the rods hidden inside the door stile, so nothing is exposed on the door face and a pair of doors can be secured without a center mullion. That is why it is the usual choice on glass front and aluminum storefront entrances where appearance matters and a mullion is not wanted. The tradeoff is preparation: the door has to be hollow with a 1-3/8 inch square inside dimension to route the rods, and both a top and bottom strike have to be set. A rim device is far simpler to install but needs a mullion on a pair and leaves hardware visible on the face. A mortise exit device latches into the jamb at a single point and needs a mortise pocket cut in the stile.
13) What lever trim options are available for the Sargent AD8474, and do I have to order trim with it?
Trim is optional. You can order the device alone, or with ET Trim in eight lever designs: A, B, E, F, J, L, P and W levers. Because the electrified function lives in the ET trim on this device, ordering it without trim means you have a mechanical exit only device with no powered outside entry. If access control from the outside is the point of the installation, order the ET trim with it. Property managers standardizing an entire building usually pick one lever design and one finish and carry it across every opening.
14) Can I mount the Sargent AD8474 lower than standard for an elementary school?
Yes. The device centerline is 41 inches for standard applications, or 38 inches for elementary schools and accessibility, using the 100 Series Auxiliary Control. Specify the 38 inch height at order time so the rails and rod lengths are cut to suit, and confirm the lower centerline still works with any existing door prep or glass lite that is already in the leaf.
15) Is there a minimum door width for the alarmed option on the Sargent AD8474?
The AL alarmed option requires a 36 inch minimum door width, because the alarm module needs the rail length to house it. On a 32 inch leaf you cannot get AL. If you need local alarm on a narrower door, look at the 59 Electroguard self contained delayed egress option instead, which is a different approach to the same problem.
16) I do not need the electrified function. What is a simpler mortise exit device than the Sargent AD8474?
The Sargent AD8474 is an electrified fail secure device with electric options such as 53 Latchbolt Monitor Switch, 56 Remote Dogging / Latch Retraction and 59 Electroguard. If the opening only needs mechanical egress, the Falcon 25-M-EO is a Grade 1 exit only mortise device for 36 inch wide stile doors at 1-3/4 inch thickness, and the BEST Precision 2301 Series is an exit only mortise device with heavy wrought construction. The Detex 30 Series Advantex is a Grade 1 device only, exit only mortise device for wide stile non-wood doors. All three are mechanical, so they need no power supply, wiring or access control tie-in, and all three are wide stile rather than narrow stile.
17) Which mortise exit device accepts classroom or passage lever trim like the Sargent AD8474 ET trim?
The Sargent AD8474 is ordered with ET Trim in A, B, E, F, J, L, P or W lever styles, or as exit device only with no trim. The Corbin Russwin ED5600AL is the closest peer on that count: it is a Grade 1 3 hour fire rated mortise exit device supplied exit only or for use with classroom or passage lever trim, with the trim ordered separately. The distinction that matters is function - the AD8474 lever trim is electrified fail secure, so the outside lever is controlled by the access control system, while the ED5600AL trim is mechanical classroom or passage.
18) What is the difference between the Sargent AD8400 Series and the Adams Rite 8400 Series?
The series numbers look alike but the devices are not the same. The Sargent AD8400 Series device here, the AD8474, is a fail secure electrified concealed vertical rod exit device for narrow stile hollow metal doors 1-3/4 to 2-1/4 inch thick, Grade 1, UL Fire and Panic listed. The Adams Rite 8400 Series is a life-safety narrow stile mortise exit device for aluminum doors, Grade 1, and not fire rated. Both are narrow stile, but one is a concealed vertical rod latching top and bottom and the other is a mortise device latching at the lock stile.
19) What finishes does the Sargent AD8474 come in to match the rest of my building hardware?
Twelve finishes: 03 bright brass clear coated, 04 satin brass clear coated, 09 bright bronze clear coated, 10 satin bronze clear coated, 10B dark oxidized satin bronze oil rubbed, 10BE dark oxidized satin bronze, 10BL dark oxidized satin bronze clear coated, 20D dark statuary bronze lacquered, 32 bright stainless steel, 32D satin stainless steel, BSP black suede powder coat and WSP white suede powder coat. 32D satin stainless is the usual commercial default and the easiest to match across a mixed set of existing openings. BSP and WSP powder coats are the ones to look at when the storefront framing is painted black or white rather than anodized.
20) I want an illuminated or photoluminescent touchpad on my exit device. Does the Sargent AD8474 offer that?
Yes. Beyond the standard rail, the AD8474 can be ordered with PL SARGuide photoluminescent or TL SARGuide illuminated touchpad, and there is also a BT beacon option. These matter in stairwells, assembly occupancies and any egress path where the authority having jurisdiction wants the exit hardware visible in a smoke or power loss condition. They are specified at order time, not added in the field.
21) Is the Von Duprin 9475/9575 Impact Series an alternative to the Sargent AD8474 for a high-abuse opening?
The Von Duprin 9475/9575 Impact Series is a Grade 1 mortise lock exit device with a recessed push pad, built for wide stile doors, and it is not fire rated. The recessed push pad is the point of difference - it sits back from the face of the device for high-traffic and cart-strike areas. The Sargent AD8474 is a narrow stile device requiring only 1-3/4 inch stile with stainless steel construction and a stainless steel top bolt. So the Impact Series is the option when the door is wide stile and non-rated; it does not fit the narrow stile opening the AD8474 addresses.
22) For standardizing exit devices across a facility, which of these mortise exit devices share the same grade as the Sargent AD8474?
The Sargent AD8474 is Grade 1. Across the mortise exit device peers, Grade 1 is also carried by the Adams Rite 3300 and 8300 Series, the Adams Rite 8400 Series, the Corbin Russwin ED5600AL, the Detex 30 Series Advantex, the Falcon 25-M-EO, and the Von Duprin 5575, 8875, 9475/9575 and 9875. Grade is the common floor; what separates them for a facility standard is stile type and fire rating. The AD8474, the Adams Rite 8400 and the Von Duprin 5575 are the narrow stile options; the AD8474, the Adams Rite 3300 and the Corbin Russwin ED5600AL, which is 3 hour fire rated, are the fire-rated options.
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Does the Sargent AD8474E 10BE come with a warranty?
Absolutely. The Sargent AD8474E 10BE is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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