Sargent NB8774 Fail Secure Ele...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,607.89
$2,438.93
Sargent NB8700 Series - (NB8774) Fail Secure Electrified Function Wide Stile Grade 1 Surface Vertical Rod Exit Device

Sargent NB8774 Fail Secure Electrified Wide Stile Surface Vertical Rod Exit Device

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Model: NB8774E 10BE
From the NB8700 Series Collection
$3,607.89
$2,438.93
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,607.89
$2,438.93
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Sargent NB8774 Fail Secure Electrified Wide Stile Surface Vertical Rod Exit Device with Grade 1 Construction

Professional Grade 1 Electrified Exit Device Solution

The Sargent NB8774 is a fail secure electrified surface vertical rod exit device from the NB8700 Series, engineered for wood or metal doors 1-3/4" thick with 4-1/2" minimum stile width with trim. This Grade 1 exit device accommodates door widths from 24" to 48" with rail options including E Rail (24" to 32"), F Rail (33" to 36"), J Rail (37" to 42"), and G Rail (43" to 48"). The top latch surface vertical rod design provides reliable egress control for both rated and non-rated openings in commercial applications.

Professional Features & Benefits

  • Wide Door Compatibility: Accommodates door widths from 24" to 48" with multiple rail options (E, F, J, G Rails) for versatile installation requirements.
  • Grade 1 Construction: Heavy-duty design meets BHMA Grade 1 standards for durability and performance in high-traffic commercial environments.
  • Fail Secure Operation: Electrified function maintains secure locking during power loss for enhanced security in access-controlled applications.
  • Wide Stile Design: Requires 4-1/2" minimum stile with trim and 3-1/2" minimum stile without trim for secure mounting on various door configurations.
  • Door Thickness Range: Standard 1-3/4" thick door compatibility with options for doors over 1-3/4" to 2-1/4" thickness.
  • Surface Vertical Rod Configuration: Top latch design provides reliable vertical rod operation for single-door applications.
  • Rated and Non-Rated Applications: Suitable for both fire-rated and standard openings providing installation flexibility.
  • NB8700 Series Integration: Part of Sargent's comprehensive exit device line combining simplicity, strength, durability, and innovation.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm current capacity before proceeding with electrified function installation.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including fail-secure operation per application requirements.
  6. Restore power and test all functions including normal operation, electrified locking function, 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 Institution Access Control
  • Healthcare Facility Controlled Egress
  • Government and Municipal Buildings
  • Industrial Facility Security
  • Multi-Tenant Residential Properties
  • Retail Establishment Loss Prevention

Why Choose Sargent Quality?

Sargent NB8700 Series exit devices deliver professional-grade reliability with Grade 1 construction engineered for demanding commercial applications. The comprehensive product line provides the optimal combination of simplicity, strength, durability, aesthetics and innovation for both rated and non-rated openings. Engineered for dependable performance where secure egress control is essential.

Product Specs

Series:
NB8700 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:
Wide Stile
Lock Function:
Electrified
Grade:
Grade 1
Model Series:
NB8700 Series
Product Model:
NB8774
Product Function:
Electrified
Product Category:
Exit Devices and Trim
Collection:
NB8700 Series
Department:
Door Hardware

Sargent NB8774E 10BE – Frequently Asked Questions

1) Will the Sargent NB8774 exit device fit my aluminum storefront door?
No. The NB8774 is a wide stile device and needs 4-1/2 inch minimum stile with trim, 3-1/2 inch without trim, on a wood or metal door 1-3/4 inches thick. Typical aluminum storefront stiles are narrower than that. For a narrow stile aluminum opening, look at the Adams Rite 8400 Series narrow stile mortise exit device, which is built for aluminum doors.
2) What does fail secure mean on the NB8774, and what happens if the building loses power?
Fail secure means the outside trim stays locked when power drops. The NB8774 is an electrified device, so the access control system unlocks the lever from outside only while it is energized. Lose power and outside access is denied, but free egress from the inside is unaffected, since pushing the pad always retracts the latch mechanically. If your code official requires the opening to unlock on power failure, you need a fail safe device instead.
3) How do I pick the right rail size for my door width on the Sargent NB8774?
Rail selection follows door width: E Rail covers 24 to 32 inch doors, F Rail 33 to 36 inches, J Rail 37 to 42 inches, and G Rail 43 to 48 inches. Ordering sizes run 32, 36, 42 and 48 inches. Measure the actual door leaf width, not the frame opening, before you pick.
4) Is the NB8774 handed, and how do I specify it?
Handing matters. The NB8774 is ordered RHR (right hand reverse) or LHR (left hand reverse). Stand outside the door, on the side that swings away from you: if the hinges are on your right it is RHR, hinges on your left is LHR. Exit devices are always on a reverse bevel door, which is why both choices are reverse hand.
5) Can I use the Sargent NB8774 on a fire rated opening?
Yes, the NB8774 serves both rated and non-rated openings. If you need the fire rated build, order the Fire Rated (Less Dogging) option, which comes without mechanical dogging, since a fire door latch cannot be held retracted. The standard version is for non-rated openings only and can be dogged.
6) Do I need a mullion to use the NB8774 on a pair of doors?
No. The NB8774 is a surface vertical rod device with a top latch, so it latches into the head frame rather than into a strike on the edge of the door. On a pair of doors that means no center mullion is needed, since each leaf secures itself vertically. On a single door it works the same way, latching at the head.
7) What is a non-electrified alternative to the Sargent NB8774 for a wide stile opening that does not need access control?
If the opening does not need an electrified function, the Falcon 25-M-EO is a Grade 1 wide stile mortise exit device built as exit only, for 1-3/4 inch doors. The Corbin Russwin ED5600AL is another Grade 1 wide stile mortise device for 1-3/4 inch doors that can be used exit only or with passage or classroom lever trim ordered separately. The NB8774 is the electrified fail secure function in the Sargent NB8700 Series, so it is the choice when the lever trim has to be controlled by a card reader or other access control; the Falcon and Corbin Russwin units are mechanical only.
8) I need a fire rated mortise exit device for a wood door. Is the Sargent NB8774 right, or is there another option?
The NB8774 is offered in a Fire Rated (Less Dogging) configuration and mounts on wood or metal doors 1-3/4 inch thick, so it does cover that opening. A non-electrified alternative is the Adams Rite 3300 Series, a Grade 1 fire-rated wide stile mortise exit device for wood and hollow metal doors, and the Corbin Russwin ED5600AL is a Grade 1 three hour fire rated wide stile mortise device for 1-3/4 inch doors. Note that the Von Duprin 8875, 9875 and the Detex 30 are listed as not wood door compatible.
9) The NB8774 needs a 4-1/2 inch stile with trim. What mortise exit device works on a narrow stile aluminum door?
The NB8774 is a wide stile device requiring 4-1/2 inch minimum stile with trim and 3-1/2 inch without. For narrow stile aluminum doors, the Adams Rite 8400 Series is a Grade 1 narrow stile life-safety mortise exit device made for aluminum doors, and the Von Duprin 5575 is a Grade 1 narrow stile crossbar mortise exit device for 1-3/4 inch doors that is field reversible. Neither is an electrified fail secure device, so an access-controlled narrow stile opening will need the control handled elsewhere in the assembly.
10) Is the Von Duprin 9875 a direct substitute for the Sargent NB8774?
They are not interchangeable. Both are Grade 1 wide stile devices, but the Von Duprin 9875-3FT is a smooth case mortise exit device, non-handed, for 1-3/4 inch doors and is listed as not fire rated and not wood door compatible. The Sargent NB8774 is a surface vertical rod device with a top latch, handed RHR or LHR, available in a fire rated configuration, and electrified fail secure at 12V or 24V. The rod and top latch hardware means the door prep and strike locations differ from a mortise-only device.
11) What is 12V versus 24V on the NB8774, and does it matter?
You pick one at order time and it is not field changeable, so match it to the power supply feeding the opening. Both 12V and 24V builds are available. Access control panels and door power supplies commonly run 24VDC, but confirm what is already installed at your site before specifying.
12) Does the NB8774 include outside lever trim, or do I order it separately?
Trim is a selection on the device. ET Trim is offered in A, B, E, F, J, L, P and W lever designs, or you can order the device with no trim as exit only. Since the NB8774 is fail secure electrified, the ET lever trim is what the access control system releases, so most access controlled openings take a trim.
13) Will the NB8774 work on a door thicker than 1-3/4 inches?
Standard build is for 1-3/4 inch doors, and there is an option covering doors over 1-3/4 inch up to 2-1/4 inch. Thicker doors affect the trim through-bolt and spindle length, so the thickness has to be called out on the order rather than adjusted in the field.
14) Is the Sargent NB8774 Grade 1, and is that enough for a school or hospital corridor?
Grade 1 is the BHMA heavy duty commercial rating, the top tier for exit devices, and it is what schools, hospitals and government facilities normally specify for high traffic egress. The NB8774 is Grade 1 and catalogued for commercial use. Every device in the wide stile comparable group, including the Corbin Russwin ED5600AL and Von Duprin 9875, carries the same Grade 1 rating, so the deciding factors become electrification, door material and stile width rather than grade.
15) What is the difference between the Sargent NB8774 and the Von Duprin 9475/9575 for a wide stile door?
The Von Duprin 9475/9575 Impact Series is a Grade 1 wide stile mortise lock exit device with a recessed push pad, listed as not fire rated, and it is a mechanical device. The Sargent NB8774 is Grade 1 wide stile as well but is a surface vertical rod device with an electrified fail secure function, ordered in 12V or 24V with optional latchbolt monitor, signal switch, remote latch retraction or electric dogging. Choose the Impact Series where abuse resistance on a mechanical opening is the driver and the NB8774 where the lever trim has to be released by access control.
16) Is there a simpler exit-only device I can pair with the Sargent NB8774 on the non-access-controlled leaf of a pair?
Yes. The BEST Precision 2301 Series is a mortise exit device built exit only with heavy wrought construction, and the Falcon 25-M-EO is a Grade 1 wide stile exit only mortise device for 1-3/4 inch doors. The Detex 30 Series Advantex is a Grade 1 wide stile device-only unit, though it is listed as not wood door compatible. Any of these covers the leaf that only needs egress while the NB8774 carries the electrified fail secure lever trim on the active leaf.
17) My spec calls for a crossbar exit device. Does the Sargent NB8774 meet that, and what does?
No. The NB8774 uses a push rail in E, F, J or G lengths covering 24 inch to 48 inch door widths. For a crossbar appearance on a wide stile door, the Von Duprin 8875-3FT is a Grade 1 wide stile crossbar mortise exit device, non-handed, for 1-3/4 inch doors, listed as not fire rated and not wood door compatible. For narrow stile, the Von Duprin 5575 is the Grade 1 crossbar equivalent.
18) Can I match the NB8774 to the bronze and black hardware already on my building?
Twelve finishes are offered, including 10B dark oxidized satin bronze oil rubbed, 10BE and 10BL dark oxidized satin bronze, 20D dark statuary bronze lacquered, plus 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 32 bright stainless, 32D satin stainless, and BSP black and WSP white suede powder coat. For a fleet of openings, 32D satin stainless and BSP black are the usual standardization picks.
How fast can I get the Sargent NB8774E 10BE 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 Sargent NB8774E 10BE come with a warranty?
Absolutely. The Sargent NB8774E 10BE 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 Sargent NB8774E 10BE?
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
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