Sargent MD8674 Fail Secure Ele...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,990.78
$2,699.12
Sargent MD8674 Fail Secure Electrified Concealed Vertical Rod Exit Device with Remote Latch Retraction

Sargent MD8674 Fail Secure Electrified Concealed Vertical Rod Exit Device with Remote Latch Retraction

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Model: MD8674E 10BE
From the MD8600 Series Collection
$3,990.78
$2,699.12
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,990.78
$2,699.12
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Sargent MD8674 Fail Secure Electrified Concealed Vertical Rod Exit Device with Remote Latch Retraction

Professional Electrified Exit Device for Metal Door Applications

The Sargent MD8674 is a fail secure electrified concealed vertical rod exit device from the proven 8600 Series, engineered for standard width stile applications on hollow metal doors. This professional-grade exit device accommodates door thicknesses from 1-3/4" (44mm) minimum to 2-1/4" with 4-1/2" (114mm) minimum stile width requirements. The device features a center case measuring 8-3/8" x 2-5/8" with pushbar projection of 3" neutral and 2-1/8" when depressed, designed for door openings up to 120" (3048mm) maximum height.

Professional Features & Benefits

  • Door Compatibility: Designed for hollow metal doors with 1-3/4" (44mm) minimum thickness, expandable to 2-1/4" thick doors with proper specifications.
  • Stile Width Requirements: Standard width stile applications with 4-1/2" (114mm) minimum stile width for doors over 1-3/4" thickness.
  • Fail Secure Electrified Operation: MD8674 function provides secure locking with electrical control for access management applications.
  • Flexible Rail Sizing: Four rail sizes accommodate various door widths - E Rail (24"-32"), F Rail (33"-36"), J Rail (37"-42"), and G Rail (43"-48") with factory cutting available.
  • Heavy-Duty Construction: 8600 Series design delivers simplicity, strength, and durability with stainless steel top bolt for long-term reliability.
  • Comprehensive Strike System: Includes 650 Top Strike and 606 Bottom Strike for both panic and fire rated applications.
  • Electric Enhancement Options: Compatible with alarm (AL), Beacon (BT), SARGuide photoluminescent coating (PL), illuminated touchpad (TL), and monitoring functions including remote latch retraction (56).
  • Professional Installation: Standard machine screw mounting with device centerline at 41" (1041mm) from finished floor for standard applications or 38" (965mm) for elementary schools and accessibility compliance.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm voltage and current capacity before proceeding.
  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, alarm/alert functions, and integration with connected 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 Safety Systems
  • Healthcare Facility Access Control
  • Industrial Facility Monitoring
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Emergency Exit Compliance

Why Choose Sargent Quality?

Sargent 8600 Series exit devices deliver professional-grade reliability with heavy-duty construction featuring stainless steel components and proven electrified functionality. The MD8674 model provides fail secure operation with comprehensive electric enhancement options for demanding commercial applications where dependable access control and emergency egress performance is essential.

Product Specs

Series:
MD8600 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:
MD8600 Series
Product Model:
MD8674
Product Function:
Electrified
Product Category:
Exit Devices and Trim
Collection:
MD8600 Series
Department:
Door Hardware

Sargent MD8674E 10BE – Frequently Asked Questions

1) Will the Sargent MD8674 exit device fit a 1-3/4 inch hollow metal door?
Yes, and 1-3/4 inches (44mm) is the minimum. The MD8674 covers doors from 1-3/4 inch up to 2-1/4 inch thick, and it is built for hollow metal doors. On anything thicker than 1-3/4 inch you also need at least a 4-1/2 inch (114mm) stile to take the device.
2) How do I pick the right rail size for my door width on the Sargent MD8674?
Four rails cover the range, and you pick by door width: E Rail for 24 to 32 inch doors, F Rail for 33 to 36 inch, J Rail for 37 to 42 inch, and G Rail for 43 to 48 inch. Factory cutting is available if your opening falls between sizes. Ordering sizes on the MD8674 run 32, 36, 42 and 48 inches.
3) What happens to a Sargent MD8674 when the power goes out?
It locks. Fail secure means the outside trim stays locked with no power, so a power loss secures the opening rather than releasing it. Egress is unaffected either way, the pushbar always retracts the latches mechanically from the inside. If your application needs the door to unlock on a power drop, fail secure is the wrong function for you.
4) Can I unlock a Sargent MD8674 remotely from the front desk or an access control system?
Yes, with the 56 option, remote dogging and latch retraction. That electrically pulls the latches back so the door pushes open freely from outside until the system relocks it. Related electric options on the same device are 58 electric dogging, 59 Electroguard, 53 latchbolt monitor switch, 54 internal micro switch in the ET control, 55 signal switch in the rail, and AL alarmed (36 inch minimum door width). Specify voltage as 12V or 24V to match your power supply.
5) Do I have to specify handing when ordering a Sargent MD8674?
Yes. Handing is required, RHR (right hand reverse) or LHR (left hand reverse). Exit devices mount on the push side, so reverse bevel handing is what you are determining: stand outside the door and see which side the hinges are on. Unlike some non-handed crossbar devices, this one is not field reversible, so getting the hand right at order time matters.
6) Is there a fire rated version of the Sargent MD8674 exit device?
Yes. The rating is an order choice: Standard, or Fire Rated (Less Dogging). Fire rated devices cannot have mechanical dogging, which is why the fire version is less dogging, the latches have to relatch every time so the door stays positively latched in a fire. If you need to hold the door in a pushed state during business hours on a fire opening, use the electric options rather than dogging. The device ships with the 650 top strike and 606 bottom strike, covering both panic and fire rated applications.
7) Does the Sargent MD8674 come with outside lever trim or do I order that separately?
You choose. Trim is an order option: ET trim in A, B, E, F, J, L, P or W lever designs, or None for exit device only if the outside is blank or you already have trim. Since the MD8674 is fail secure electrified, the ET lever trim is what the electrical control governs on the outside, so most access controlled openings take a trim rather than exit only.
8) I need an exit device on a wood door, will the Sargent MD8674 work?
The MD8674 is specified for hollow metal doors. For wood doors, the Adams Rite 3300 Series (fire rated) and the Adams Rite 8300 Series (non fire rated) are both mortise exit devices listed for wood and hollow metal, and the Corbin Russwin ED5600AL is a Grade 1 3 hour fire rated mortise device that accepts passage or classroom lever trim. Note that the Von Duprin 8875, 9875 and the Detex 30 are not wood door compatible either.
9) What is the closest narrow stile mortise exit device to the Sargent MD8674 from another manufacturer?
The Sargent MD8674 is a Grade 1 narrow stile mortise exit device from the MD8600 Series. The closest narrow stile Grade 1 mortise peers are the Von Duprin 5575 in the 55 Series, a field reversible crossbar mortise lock exit device, and the Adams Rite 8400 Series life-safety narrow stile mortise exit device for aluminum doors. The MD8674 differs from both in that it is an electrified fail secure device offered in 12V and 24V with remote latch retraction, while the 5575 and the 8400 Series are mechanical devices in the comparable set.
10) The opening has a wide stile door, so what mortise exit device should be used instead of the Sargent MD8674?
The MD8674 is built for narrow stile applications, so a wide stile opening calls for a wide stile mortise device. Grade 1 wide stile options include the Von Duprin 9875 smooth case non-handed device, the Von Duprin 8875 crossbar device, the Von Duprin 9475/9575 Impact Series with a recessed push pad, the Corbin Russwin ED5600AL, the Falcon 25-M-EO, the Detex 30 Series Advantex, and the Adams Rite 8300 Series. All of those are listed as Grade 1 wide stile mortise exit devices.
11) The door is aluminum storefront rather than hollow metal - what replaces the Sargent MD8674 there?
The MD8674 is described for hollow metal doors at 1-3/4 inch minimum thickness with a 4-1/2 inch minimum stile. For an aluminum door, the Adams Rite 8400 Series is a Grade 1 life-safety narrow stile mortise exit device specified for aluminum doors. It is listed as not fire rated, so a labeled aluminum opening needs a device carrying a fire rating instead.
12) How tall a door can a Sargent MD8674 concealed vertical rod device handle?
Up to 120 inches (3048mm) maximum door height. Concealed vertical rods run inside the door to a top bolt and bottom strike, so the door has to be prepped to carry them, which is why the height ceiling exists. Above 120 inches the MD8674 is not the device.
13) How far does the Sargent MD8674 pushbar stick out into the corridor?
3 inches at rest, dropping to 2-1/8 inches when the bar is pushed. The center case measures 8-3/8 x 2-5/8 inches. Those numbers matter where the door swings into a tight corridor or against a wall, or where a required clear width is being measured with the device projecting.
14) What height should a Sargent MD8674 exit device be mounted at?
41 inches (1041mm) from finished floor to the device centerline for standard applications, or 38 inches (965mm) for elementary schools and accessibility compliance. Mounting is standard machine screw. Set the same centerline across a run of openings so a building reads consistently.
15) Should I use a concealed vertical rod exit device or a surface vertical rod on a pair of doors?
Concealed rod, like the MD8674, hides the rods inside the door leaf, so nothing is exposed to abuse or vandalism and the opening looks clean. That comes at a cost: the door must be prepped for the rods, which effectively means ordering the door that way rather than retrofitting a blank one, and service means opening the door up. Surface rods bolt on the face of an existing door, so they are the retrofit answer and the easier maintenance answer. If you are hanging new hollow metal doors in a school or healthcare corridor where the hardware takes a beating, concealed is worth the prep. If you are replacing hardware on doors already hung, look at surface rod or, if there is a mullion, a rim device.
16) What is the difference between the Sargent MD8674 and a plain mortise exit device like the Von Duprin 9875 or Falcon 25-M?
Latching points and power. The MD8674 is a concealed vertical rod device, so it latches at the head and the threshold, which is what lets it secure a pair of doors with no center mullion. It is also electrified fail secure with remote latch retraction available. The Von Duprin 9875-3FT and the Falcon 25-M-EO are mortise lock exit devices that latch into the jamb at the lock stile, both Grade 1, both rated for 1-3/4 inch doors, and both wide stile. The Falcon is exit only, no outside trim. Choose the vertical rod when you have a pair without a mullion; choose the mortise device on a single door in a frame.
17) Is the Sargent MD8674 Grade 1?
Yes, Grade 1, the heavy duty commercial classification, which is what an institutional or MRO spec normally calls for on an exit opening. It is a commercial device, not residential. Grade 1 peers in the same mortise exit family include the Corbin Russwin ED5600AL, the Detex 30 Series Advantex, and the Adams Rite 3300, so a spec written for Grade 1 mortise exit hardware has several routes.
18) Can I order the alarmed option on a 32 inch door with the Sargent MD8674?
No. The AL alarmed option carries a 36 inch minimum door width, so a 32 inch leaf will not take it. Ordering sizes are 32, 36, 42 and 48 inches, so if you want local alarm on the device the opening has to be 36 inches or wider. On a 32 inch door, use one of the monitoring options instead, such as 53 latchbolt monitor switch or 55 signal switch in the rail, and run the alarm off your panel.
19) What voltage does the Sargent MD8674 need?
12V or 24V, and it is a required choice at order time, so match it to the power supply you are feeding the door from. Confirm the supply's current capacity as well before you wire it in, latch retraction draws an inrush that a small supply will not carry.
20) Is there a simpler mortise exit device than the Sargent MD8674 for an opening with no access control?
Yes. The MD8674 is an electrified fail secure device ordered by voltage and electric option, which is more device than an opening needs when there is no access control to tie into. Mechanical exit-only mortise devices in the same Grade 1 class include the Falcon 25-M-EO, listed as exit only for 1-3/4 inch doors, the Detex 30 Series Advantex, listed as device only exit only, and the BEST Precision 2301 Series exit only device with heavy wrought construction. Those devices have no trim and no wiring; the MD8674 can be ordered with ET lever trim or as exit device only.
21) Do any of the alternatives to the Sargent MD8674 avoid specifying a hand?
The MD8674 is ordered by hand, either RHR or LHR. If handing is a problem for a stocked spare, the Von Duprin 9875 and the Von Duprin 8875 are both listed as non-handed, and the Von Duprin 5575 is listed as field reversible. Those three are crossbar or smooth case mechanical mortise devices rather than electrified concealed vertical rod devices, so the change in ordering also changes the device type.
22) What is the difference between the Sargent MD8674 and a touchpad device like the Von Duprin 9475/9575 or a crossbar device like the 5575?
The MD8674 has a pushbar with 3 inch projection neutral and 2-1/8 inch depressed, on a center case measuring 8-3/8 inch by 2-5/8 inch. The Von Duprin 9475/9575 Impact Series uses a recessed push pad on wide stile doors, and the Von Duprin 5575 and 8875 use a crossbar. All are Grade 1 mortise exit devices; the actuator style and the stile width they suit are what separate them, with the MD8674 and the 5575 on narrow stile and the 9475/9575 and 8875 on wide stile.
23) Which mortise exit device accepts lever trim as an alternative to the Sargent MD8674?
The MD8674 is ordered with ET trim in A, B, E, F, J, L, P or W lever styles, or as exit device only. Among comparable mortise devices, the Corbin Russwin ED5600AL is listed for use with classroom or passage lever trim, with trim not included. The Falcon 25-M-EO, the Detex 30 Series and the BEST Precision 2301 are listed as exit only devices, so they are not the choice where outside lever access is required.
24) Do the alternatives to the Sargent MD8674 fit the same 1-3/4 inch door?
The MD8674 starts at 1-3/4 inch door thickness and can go to 2-1/4 inch with the proper specification. The Corbin Russwin ED5600AL, the Falcon 25-M-EO, the Von Duprin 5575, 8875 and 9875 are each listed at 1-3/4 inch door thickness. On a door thicker than 1-3/4 inch, the MD8674 also requires the 4-1/2 inch minimum stile width.
25) What finishes does the Sargent MD8674 come in for matching the rest of a building's 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 match on hollow metal openings.
26) Are there options to light up or mark the Sargent MD8674 exit device in a dark corridor?
Yes. Three visibility options are available: PL, the SARGuide photoluminescent coating that glows once ambient light drops, TL, an illuminated touchpad, and BT, the Beacon. All three attach to the same device, so you can spec them alongside the fail secure electrification on egress paths where the exit has to be found in smoke or a power failure.
How fast can I get the Sargent MD8674E 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 MD8674E 10BE come with a warranty?
Absolutely. The Sargent MD8674E 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 MD8674E 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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