Sargent 8273 Electromechanical...
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$1,630.27
Sargent Sargent 8200 Series - (8273) Electromechanical Fail-Secure Function Rose Trim, Heavy Duty Double Cylinder Mortise Lock, Grade 1 SGT-8273

Sargent 8273 Electromechanical Fail-Secure Mortise Lock with EcoFlex Technology and Grade 1 Rating

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Model: 8273 EA 26D
From the 8200 Series Collection
$2,172.18
$1,630.27
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,172.18
$1,630.27
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Sargent 8200 Series Electromechanical Mortise Lock with EcoFlex Technology 12-24VDC Fail-Secure Grade 1

Industry Benchmark Heavy Duty Mortise Lock with Advanced Power Management

The Sargent 8200 Series electromechanical fail-secure mortise lock represents the industry benchmark for maximum security and performance in commercial applications. This Grade 1 heavy duty lever-style mortise lock operates from 12 to 24VDC and features revolutionary EcoFlex technology that reduces power consumption up to 96%. With UL cycle testing completed at 16 million cycles and a 2 3/4" backset depth for 1 3/4" doors, this lock integrates with all SARGENT key systems including Degree, Signature, KESO, and XC.

Professional Features & Benefits

  • Door Compatibility: Standard 2 3/4" backset depth with 3/4" latchbolt throw designed for 1 3/4" door thickness applications.
  • Exceptional Durability Testing: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched reliability in high-traffic commercial applications.
  • Flexible Voltage Operation: 12 to 24VDC operation with fail-secure configuration provides compatibility with various access control systems and power supply configurations.
  • Revolutionary Power Management: EcoFlex technology creates up to 89% energy savings on all electromechanical functions, significantly reducing operational costs and environmental impact.
  • Universal Key System Integration: Integrates with all SARGENT key systems (Degree, Signature, KESO, and XC) for seamless security management across facilities.
  • Grade 1 Certification: ANSI/BHMA A156.13 Series 1000 Grade 1 rating with UL 10C fire-rated up to 3 hours and ADA compliance for stringent commercial requirements.
  • Extensive Function Availability: Available in 56 different functions including electromechanical, security and monitoring options for diverse application requirements.
  • Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for long-term protection and confidence.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm voltage (12 to 24VDC) 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, electromechanical functions, 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
  • Healthcare Facility Access Control
  • Educational Institution Safety Systems
  • Government and Municipal Buildings
  • Industrial Facility Monitoring
  • Multi-Tenant Residential Properties
  • Emergency Exit Compliance

Why Choose Sargent Quality?

Sargent 8200 Series mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in independent UL testing. The comprehensive 10-year limited warranty with 2-year electrical component coverage provides added confidence for demanding commercial applications. Engineered with multiple certifications including ANSI/BHMA A156.13 Series 1000 Grade 1, UL 10C fire-rated up to 3 hours, and ADA compliance, this lock meets the most stringent commercial security requirements where dependable performance is essential.

Product Specs

Series:
8200 Series
Grade:
Grade 1
Keyed Function:
Double Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Electromechanical
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Electromechanical
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent 8273 EA 26D – Frequently Asked Questions

1) Will the Sargent 8273 electromechanical mortise lock fit a 1-3/4 inch door?
Yes. The 8273 is built around a 2-3/4 inch backset for 1-3/4 inch doors, which is the standard commercial thickness, and the latchbolt throws 3/4 inch. If your openings are thicker than 1-3/4 inches, that is a different mortise case: the Hager 3800 Series covers 1-3/4 to 2-1/2 inches, though it is a mechanical lock rather than an electrified one.
2) What happens to the Sargent 8273 mortise lock if the power goes out?
It stays locked. Fail-secure means the outside lever remains locked when power drops, so the opening does not free-pass on a power loss. Egress from inside is unaffected. If your life-safety plan or local code calls for the door to release on power failure instead, you want a fail-safe function, not the 8273.
3) What voltage does the Sargent 8200 Series electrified mortise lock need?
12 to 24VDC, and you pick 12V or 24V when ordering. The wide range means it drops onto most access control power supplies without a separate transformer. EcoFlex power management cuts draw by up to 96 percent, which matters when you are sizing one supply across a run of electrified openings on a corridor.
4) Is the Sargent 8273 mortise lock fire rated for a 3 hour opening?
Yes. The 8273 carries UL 10C fire rating up to 3 hours, along with ANSI/BHMA A156.13 Series 1000 Grade 1 and ADA compliance. That combination is what an institutional spec on a stairwell or cross-corridor door usually calls for.
5) Do I have to order a cylinder with the Sargent 8273, or can I use my own core?
Four ways to take it. Standard cylinder if you want it complete out of the box; less cylinder if your locksmith is supplying one; 70 prep for small format interchangeable core, less core; or 60 prep for large format interchangeable core, less core. It is a double cylinder lock, so keyed both sides. The lock integrates with all SARGENT key systems including Degree, Signature, KESO and XC, so it drops into an existing SARGENT masterkey system.
6) What is the difference between a wired electrified mortise lock like the Sargent 8273 and a standalone keypad mortise lock?
The 8273 is a wired electromechanical lock at 12 to 24VDC. It has no keypad or reader of its own, so it needs an access control system, a power supply and a power transfer at the hinge, and it gives you central control, audit at the panel and remote unlock. A standalone keypad or credential lock, like the Alarm Lock DL3500CR with 300 user codes or the Schlage CO-100 keypad mortise lock, runs on batteries at the door with no wiring, but is programmed opening by opening. Choose wired where the door is already on a card system; choose standalone where running wire to the door is the expensive part.
7) What else could I use instead of a Sargent 8273 for an electrified mortise opening?
Two close alternatives sit in the same wired, 12/24VDC class. The BEST 45HW Series is a wired electromechanical heavy duty mortise lock with 12V/24V operation. The Schlage L9092EU with 03A trim is an electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, at 12/24VDC on 1-3/4 inch doors. The Command Access ML190 Series is a motorized mortise lock at 24VDC with field selectable EL/EU operation, which is worth a look if you want to decide fail-safe versus fail-secure in the field instead of at the order. The 8273 is fixed fail-secure.
8) What is the closest equivalent to a Sargent 8273 electrified mortise lock from another manufacturer?
The BEST 45HW is the nearest peer to the Sargent 8273. Both are heavy duty wired electromechanical mortise locks, and the 45HW runs 12V/24V operation the same way the 8273 works across a 12V and 24V voltage selection. The Schlage 03A electric lock/unlock outside lever mortise lock is a second route, heavy duty, keyed outside, with request-to-exit and 12/24VDC operation. The difference to settle before ordering is keying: the Sargent 8273 is a double cylinder keyed lock that ties into Sargent key systems, while the Schlage 03A is keyed on the outside only.
9) I need fail-safe instead of fail-secure on an electrified mortise lock - what should I order?
The Sargent 8273 is built fail-secure, so the lever stays locked when power drops. When the opening needs the other behavior, the Command Access ML190 is the direct answer: it is a motorized heavy-duty mortise lock with field selectable EL/EU operation, so one lock body covers both electrically locked and electrically unlocked and the setting is made in the field rather than at order time. The ML190 runs on 24VDC and is a storeroom function lock, so confirm the function matches the opening before switching.
10) Is there a simpler alternative to a Sargent 8273 if the door has no access control wiring?
Yes. The 8273 is an electromechanical lock that needs 12 to 24VDC power run to the door. On a door with no power, a mechanical Grade 1 mortise lock does the job with no wiring: the Accentra 8805FL is a Grade 1 storeroom mortise lock, the Corbin Russwin ML2003 is a Grade 1 classroom mortise lockset for 1-3/4 inch doors, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option. Pick by the function the opening needs; all three hold the same Grade 1 rating the Sargent 8273 carries. Standalone keypad locks such as the BEST 45HZ EZ Series electronic keypad mortise lock with key override are the other unwired path when you still want code access.
11) What is the difference between a Sargent 8273 and an electronic keypad mortise lock like the Alarm Lock Trilogy or Dormakaba E-Plex?
They solve access differently. The Sargent 8273 is a wired electromechanical lock: it takes 12 to 24VDC from the building and is driven by an access control system, with credentials handled by that system. The Alarm Lock DL3500CR Trilogy is a Grade 1 standalone electronic mortise lock that stores 300 user codes at the door, and the Dormakaba E-Plex 2066 is an electronic pushbutton keyless mortise lock. Standalone units mean no wire pull to the opening; the wired 8273 means the door reports to and is controlled from the head end. Door prep also differs - the DL3500CR is built for 1-5/8 to 1-7/8 inch doors, while the 8273 uses a 2 3/4 inch backset for 1 3/4 inch doors.
12) Can I use a Sargent 8273 on a classroom door that needs lockdown from inside?
The Sargent 8273 is an electromechanical fail-secure lock, so lockdown is commanded through the access control system rather than at the door. Where the requirement is a lever or key action inside the classroom, an intruder or classroom security function fits better: the BEST 45HCA lockbody comes in an Intruder function, the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors, and the TownSteel FME-4000 is a Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID. The FME-4000 keeps the electronic credential path while adding the in-room lockdown the 8273 does not perform locally.
13) Can I get Sargent 8200 mortise locks keyed alike across a building?
Yes. Keying options are keyed different, keyed alike, or supplied to a specific key code you provide at order. For a property manager standardizing a floor or a whole building, keyed alike on one bitting means one key opens the run. If you are pinning to an existing system, order to key code or take the less-cylinder option and have your locksmith pin to the house keyway.
14) How many cycles is the Sargent 8200 mortise lock rated for in high traffic?
16 million cycles, verified under UL's Above and Beyond cycle test (Verification ID V584148). For context, that is the heavy duty end of the market and the reason this case shows up on hospital corridors, school entries and campus buildings where a door gets pulled hundreds of times a day. Duty level is heavy duty, commercial only.
15) Which lever and rose do I need to specify on a Sargent 8200 mortise lock?
Both are order choices. Levers run A, B, E, F, J, L and P and W. Roses come in four sizes: LN at 2 inches (51mm), O at 2-3/4 inches (67mm), E at 3-1/16 inches (78mm) and L at 3-1/2 inches (89mm). Rose size is the one to check against the door face, especially where an existing escutcheon or a narrow flat area limits how much room you have. Match the lever style to whatever is already on the adjacent openings if you are keeping a building consistent.
16) Can I replace a mechanical Sargent 8200 mortise lock with the 8273 electrified version and keep the same door prep?
The 8273 is an 8200 Series case on the same 2-3/4 inch backset the mechanical 8200 locks use, so the mortise pocket and lock front stay in family. What changes is that the electrified case needs power at the door: an electric hinge or power transfer, wiring run into the pocket, and a hole through the door edge for it. Budget for the door prep for the transfer, not for a new mortise. Sargent publishes a 7800/8200 mortise lock installation template covering all sectional rose and escutcheon trims, which is what your installer should be cutting to.
17) Will the Sargent 8273 latch into my existing ANSI strike?
The latchbolt throws 3/4 inch on a 2-3/4 inch backset case, which is standard commercial mortise geometry, so it lands in a standard ANSI mortise strike prep in a hollow metal frame. Where it gets checked is on a pair or a door with a wide gap: 3/4 inch of throw wants the frame and door aligned within normal tolerance. Verify the strike is a mortise strike and not a cylindrical one before you order.
18) I need a Grade 1 mortise lock for a classroom, not an electrified one. What should I look at?
The 8273 is an electromechanical fail-secure lock that needs power and a control system, which is more than a classroom door usually needs. For a straight mechanical classroom function, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors, and the Cal-Royal NM8070 is a Grade 1 heavy duty classroom mortise lockset with auxiliary deadlatch, also 1-3/4 inch. For storeroom instead, the Cal-Royal NM8080 offers an interchangeable core option.
19) What is a wireless alternative to a hardwired Sargent 8273 mortise lock?
Running 12 to 24VDC to the opening is the cost driver on the Sargent 8273, and two peers avoid it. The Schlage Electronics LEMD is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile-enabled deadbolt with LED, and it is fire rated 3 hours, matching the 3 hour UL 10C rating the 8273 holds. The Alarm Lock DL1300NW Trilogy Networx is a wireless electronic mortise lock with keypad, though it is made for Adams Rite deadlatches rather than a standard mortise pocket, so check the door before specifying it. Wireless locks report over RF instead of a wired run to the panel.
20) I have a card reader at the door already - do I need the Sargent 8273 or a lock with the reader built in?
If the reader and panel are already at the opening, the Sargent 8273 is the lock that pairs with them: it is a fail-secure electromechanical mortise lock on 12 to 24VDC, and the credential decision stays with the access control system. If you are replacing the reader as well, integrated-reader mortise locks put the credential in the lock: the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors, and the Dormakaba Saffire LX-I-M002 is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2. Note the grade difference against the Grade 1 rating the 8273 carries.
21) Will a Baldwin 6310 or Emtek mortise lock work as a substitute for a Sargent 8273?
No, and it is worth knowing why before ordering. The Sargent 8273 is a Grade 1 commercial heavy duty electromechanical mortise lock with a 2 3/4 inch backset. The Baldwin 6310 entry/storeroom mortise lock body is a mechanical lock on a 2-1/2 inch backset, so the door prep does not line up, and it carries no electrical operation. Emtek mortise entrance locksets such as the 3104 Hamilton and the 3106 Manhattan are dummy function - there is no latch operation at all, they are trim for an inactive leaf. Neither line replaces an electrified opening.
22) Which mortise locks match the Sargent 8273 for standardizing a facility on Grade 1 across both powered and unpowered doors?
The Sargent 8273 covers the electrified openings at ANSI/BHMA A156.13 Series 1000 Grade 1 with UL 10C fire rating to 3 hours. For the rest of the doors in the same facility, these peers hold Grade 1 as well: Cal-Royal NM8050 office/entrance, NM8070 classroom, and NM8440 privacy with deadbolt, all for 1-3/4 inch doors; Falcon MA101 heavy duty passage, which is fire rated; Schlage PM010 passage latch, non-keyed, 1-3/4 inch door; and TownSteel MRX-L-01 stainless steel heavy duty anti-ligature lever passage lockset. That set covers passage, privacy, office, classroom and access-controlled openings at one grade level.
23) Is a Kaba Ilco 185 or an electronic deadbolt the same thing as a Sargent 8273 electrified mortise lock?
No. The Sargent 8273 is a lever-operated double cylinder electromechanical mortise lock - the lever retracts a 3/4 inch throw latchbolt and the electrification controls the outside lever. The Kaba Ilco 185 Series is a mortise deadbolt function with no handing, and the Alarm Lock DL4500 is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad. A deadbolt secures the door but provides no latching and no lever operation, so it cannot serve a latched egress opening on its own. If a deadbolt was specified alongside a latch, the two are separate devices in the door.
24) What should I use instead of a Sargent 8273 on a door thicker than 1-3/4 inches?
The Sargent 8273 is built around a 2 3/4 inch backset for 1 3/4 inch door thickness. For a thicker door, the Hager 3800 Series covers 1-3/4 inch to 2-1/2 inch on the same 2-3/4 inch backset - the 3810E passage with escutcheon, the 3810S passage with rose, and the 3850E office lever with escutcheon non-keyed all carry that range. Baldwin mortise lock bodies also run thicker doors, with the 6301LS entry/apartment lever by lever listed for 1-3/4 inch and over, though on a 2-1/2 inch backset rather than 2-3/4. These are mechanical functions, so an electrified thick-door opening should be confirmed against the Sargent mortise lock catalog.
25) For a behavioral health or hospital opening, is the Sargent 8273 the right mortise lock?
The Sargent 8273 is a lever-operated Grade 1 electromechanical mortise lock and meets ADA, but it uses a standard lever that presents a ligature point. Where the opening calls for ligature resistance, the TownSteel MRX-A-01 is a Grade 1 heavy duty satin stainless steel ligature resistant arch trim mortise lockset in passage function, and the MRX-L-01 is the anti-ligature lever version, both for 1-3/4 inch doors. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset, ligature resistant and ADA compliant in satin stainless steel. All three are passage function, so they secure nothing - use them where the 8273 would have been overspecified.
26) Does the Sargent 8273 work with interchangeable core cylinders like a BEST or Cal-Royal mortise lock?
Yes. The Sargent 8273 can be ordered with a 70 small format interchangeable core prep less core, a 60 large format interchangeable core prep less core, a standard cylinder, or less cylinder entirely, and it integrates with the Degree, Signature, KESO and XC key systems. Among the peers, the Cal-Royal NM8080 storeroom mortise lockset offers an interchangeable core option, and the BEST 45HZ EZ Series keypad mortise lock includes key override. If a facility is already keyed on a small format core system, the 70 prep on the 8273 lets the electrified openings join that same keyway.
27) What finishes does the Sargent 8200 mortise lock come in to match existing hardware?
Sixteen finishes, so matching an existing run is usually straightforward. The common commercial ones are 26D satin chrome and 32D satin stainless; brass and bronze run 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze plus three dark oxidized bronze variants (10B oil rubbed, 10BE, 10BL clear coated). Also 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 26 bright chrome, 32 bright stainless, and BSP black or WSP white suede powder coat.
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Does the Sargent 8273 EA 26D come with a warranty?
Absolutely. The Sargent 8273 EA 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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