Sargent TR-8200 Mortise Lock w...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$780.78
$447.00
Sargent TR-8200 Mortise Lock with LN Round Rose Trim

Sargent TR-8200 Mortise Lock with LN Round Rose Trim

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Model: TR-8204-LNB-26D
From the 8200 Series Collection
$780.78
$447.00
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$780.78
$447.00
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Sargent 8200 Series Heavy-Duty Mortise Lock with LN Round Rose Trim and EcoFlex Technology

Industry Benchmark Heavy-Duty Mortise Lock Solution

The Sargent 8200 Series mortise lock represents the industry benchmark for maximum security, performance, and durability in commercial door hardware. This heavy-duty lever-style mortise lock features a multi-functional lock body with 2 3/4" backset depth and 1 3/4" door thickness compatibility. Available in 56 different functions including electromechanical options operating from 12 to 24VDC with EcoFlex technology, this lock integrates with all SARGENT key systems including Degree, Signature, KESO, and XC for comprehensive access control compatibility.

Professional Features & Benefits

  • Exceptional Durability Rating: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched reliability in high-traffic commercial applications.
  • Standard Door Compatibility: Designed for 1 3/4" door thickness with 2 3/4" backset depth and 3/4" latchbolt throw for standard commercial door preparations.
  • EcoFlex Energy Technology: Electromechanical versions utilize EcoFlex technology creating up to 89% energy savings and operating from 12 to 24VDC for flexible power requirements.
  • Multi-Functional Design: Available in 56 different functions including electromechanical, security and monitoring options with field-reversible handing for versatile installation requirements.
  • Universal Key System Integration: Integrates with all SARGENT key systems (Degree, Signature, KESO, and XC) with 6 pin or 7 pin cylinder options for comprehensive access control compatibility.
  • Heavy-Duty Construction: Patented design and construction with curved lip strike type provides exceptional strength and reliability far exceeding independently verified testing standards.
  • Comprehensive Fire Rating: UL 10C Fire-Rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.

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 field-reversible handing 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 Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Sargent Quality?

Sargent 8200 Series mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in UL testing. The 10-year limited warranty with 2-year electrical component coverage demonstrates exceptional confidence in product durability. Engineered for demanding commercial applications where dependable performance and maximum security are essential.

Product Specs

Series:
8200 Series
Grade:
Grade 1
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Device Trim
Subcategory:
Bored Locksets
Commercial/Residential:
Commercial
Lock Function:
Office/Entry
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Product Attribute:
Trim Pack
Electronic:
No
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent TR-8204-LNB-26D – Frequently Asked Questions

1) Will the Sargent 8200 mortise lock fit a 1-3/4 inch commercial door with a 2-3/4 inch backset prep?
That is exactly the prep the 8200 Series is built for: 1-3/4 inch door thickness with a 2-3/4 inch backset, which is the standard commercial mortise pocket. The latchbolt throws 3/4 inch. If your existing mortise pocket was cut for a 2-3/4 inch backset lock body, this drops into it. Doors thicker or thinner than 1-3/4 inches are outside what this lock is specified for.
2) Do I have to specify handing when I order a Sargent 8200 mortise lock?
No. The 8200 lock body is field-reversible for handing, so the same lock covers left and right hand openings and you set it at install. That is what makes it practical to stock one lock for a building with mixed swings. Lever style and finish still have to be specified, since those are not reversible.
3) Which lock function of the Sargent 8200 should I order for a mechanical room versus an office door?
Order Storeroom/Closet for a mechanical or utility room: the outside lever stays locked at all times and entry is by key only, while the inside lever always retracts the latch for egress. For an office, Entry/Entrance/Office lets the occupant lock or unlock the outside lever and leave it unlocked during business hours. The other functions offered are Passage/Hall/Closet (no locking, latch only), Room Door, and Privacy/Bedroom/Bath for restrooms and sleeping rooms. Those five are the function choices on the lock, and each one is available with any of the four levers and either finish.
4) Is the Sargent 8200 mortise lock fire rated for a 3 hour opening?
Yes. The 8200 Series is UL 10C fire rated up to 3 hours and compliant with NFPA 80, which covers stair doors, corridor doors, and rated cross-corridor openings. Fire rated openings need a lock with a latchbolt that holds the door in the frame, and the storeroom and room door functions here do that.
5) Is the Sargent 8200 mortise lock Grade 1, and how many cycles is it tested to?
Grade 1, heavy duty, for commercial use. Sargent completed UL Cycle Above and Beyond testing at 16 million cycles under verification ID V584148. For a facility standardizing on one lock across high-traffic openings like school corridors, dorms, or hospital doors, that cycle number is the reason to spec a mortise body rather than a bored lockset.
6) Can I key a Sargent 8200 mortise lock into my existing Sargent master key system?
Yes. The 8200 lock body works with all Sargent key systems, including Degree, Signature, KESO, and XC, in 6 pin or 7 pin cylinder configurations. So if a building is already on a Sargent system, these locks go onto the existing keyway and master key schedule rather than forcing a second key system.
7) Will the Sargent 8200 latch into the strike that is already in my frame?
The 8200 uses a curved lip strike and throws its latchbolt 3/4 inch. A curved lip strike is what a mortise lock needs in a standard commercial frame, and 3/4 inch is the normal mortise latch throw, so an existing mortise strike of the same type will usually take it. What decides it is whether the frame prep is a mortise strike cutout or a smaller bored-lock strike, because those are not interchangeable. Measure the strike opening in the frame before you order.
8) Can a Dormakaba E-Plex 3000 or 3200 replace a Sargent 8200 mortise lock in a standard 1 3/4 inch commercial door?
They solve different openings. The Sargent 8200 is a heavy-duty Grade 1 mortise lock with a 2 3/4 inch backset built for 1 3/4 inch commercial doors, ordered here with LN round rose lever trim in storeroom, entry/office, passage, room door, and privacy functions. The Dormakaba E-Plex 3000 electronic mortise lock set and the E-Plex 3200 pushbutton lock are both built for Adams Rite deadbolts and latches, which is narrow-stile aluminum storefront prep rather than the wide-stile mortise pocket the 8200 fits. If the door is a standard hollow metal or wood commercial leaf, the 8200 is the mortise lock that matches the prep; if the door is an aluminum storefront stile already carrying an Adams Rite deadbolt, look at the E-Plex 3000 or 3200 instead.
9) I need keypad access control on the door instead of a keyed mortise lock - what are my options?
The Sargent 8200 with LN round rose trim is a mechanical Grade 1 mortise lock, keyed and operated by lever, with no keypad. For pushbutton credential entry, the Dormakaba E-Plex 3700 is a mortise electronic pushbutton lock for Adams Rite latches, and the E-Plex 3200 pushbutton lock stores 3,000 access codes with 30,000 audit events for Adams Rite deadbolts and latches. Both of those are prepped for Adams Rite hardware, so confirm the door stile before specifying either; the 8200 remains the choice where the opening takes a conventional commercial mortise body and the site keys to a SARGENT key system.
10) The spec calls for a 3 hour fire rated mortise lock on a stair door - which of these qualifies?
The Sargent 8200 is UL 10C fire rated up to 3 hours with NFPA 80 compliance, and it is available in storeroom function, the usual call on a stair door that must latch and stay locked from the outside. The Dormakaba E-Plex options in this range - the 3000, 3200, and 3700 - are electronic locks built around Adams Rite deadbolts and latches, a different opening type than a fire rated stair leaf in a commercial frame. For a fire rated stair door on standard mortise prep, the 8200 in storeroom function is the direct answer.
11) What lever and finish combinations can I get on the Sargent 8200 with LN round rose trim?
Four lever designs, B, J, L, and P, each in two finishes: 10B dark oxidized satin bronze, oil rubbed, and 26D satin chrome over nickel. Every lever and finish pairing is offered in all five lock functions, so you can match one lever design and finish across an entire building while varying the function door by door. 26D is the usual choice for matching existing commercial hardware; 10B suits a darker aesthetic on hospitality or multi-family entries.
12) Should I use a mortise lock or a cylindrical lockset on a heavy commercial door?
A mortise lock like the Sargent 8200 needs a pocket machined into the door edge, which means more prep, but it puts a much larger lock case and a 3/4 inch throw latchbolt into the door and takes the abuse on high-traffic openings. That is why it carries the Grade 1 heavy duty rating and a 16 million cycle result. A cylindrical lockset only needs a bore and a cross-bore, so it is faster to install and easier to retrofit into a door that was never mortised. If the door already has a mortise pocket, or the opening is a main entrance, stair, or corridor door, go mortise. If you are replacing a bored lock in a door with no pocket, a cylindrical lock is the right call, since cutting a mortise into an existing fire door is not something you do in the field.
13) Is the Sargent 8200 with LN rose trim an electronic lock, and does it need power run to the door?
No power required. This configuration of the 8200 is a mechanical lock, keyed and operated by lever, so there is no wiring, no transfer hinge, and no power supply to plan for. Sargent does build electromechanical versions of the 8200 body running 12 to 24VDC with EcoFlex, but that is a different order, and if you want access control at this opening that is the direction to go rather than adding anything to a mechanical lock.
14) What do I need to check on the door before installing a Sargent 8200 mortise lock?
Three things decide the install: the door has to be 1-3/4 inches thick, the edge pocket has to be cut for a 2-3/4 inch backset, and the frame needs a mortise strike prep. Sargent publishes an installation template covering the 7800 and 8200 mortise locks with all sectional rose and escutcheon trims, which is what you lay on the door to mark the pocket and the rose holes. Handing you sort out at install, since the lock body reverses in the field.
15) What is an alternative to the Sargent 8200 if I need pushbutton or credential access instead of a key?
The 8200 in this configuration is mechanical and keyed. For standalone electronic access on a mortise opening, the Dormakaba E-Plex 7900 Series SFIC prox mortise lock (no deadbolt) is the credential-reader option, and the E-Plex 3200 Series pushbutton lock holds 3,000 access codes with 30,000 audit events for code-based entry with an audit trail. Note the E-Plex 3000, 3200, and 3700 series are built for Adams Rite deadbolts and latches, which is aluminum storefront territory, not a standard hollow metal or wood commercial door. If the opening is a normal commercial door and you want the Sargent lock body with power, order the electromechanical 8200 version running 12 to 24VDC.
16) I manage a building with mixed door functions. Can I standardize on one Sargent 8200 lever and finish across all of them?
Yes, and that is the practical way to buy it. Pick one lever design, B, J, L, or P, and one finish, 10B oil rubbed bronze or 26D satin chrome, and you can get that same look in Storeroom/Closet for utility rooms, Entry/Entrance/Office for offices, Passage/Hall/Closet where nothing locks, Room Door, and Privacy/Bedroom/Bath for restrooms. Every function is offered with every lever and finish combination. Keying stays consistent too, since the lock body accepts all Sargent key systems in 6 or 7 pin.
17) We standardize on small format interchangeable core - is there a proximity credential mortise lock that keeps SFIC key override?
The Dormakaba E-Plex 7900 Series SFIC prox mortise lock is the one in that family carrying both a small format interchangeable core and proximity credential reading, and it is supplied with no deadbolt. The Sargent 8200 takes a different path to the same standardization goal: it is a mechanical Grade 1 mortise lock that integrates with the SARGENT key systems including Degree, Signature, KESO, and XC, with 6 pin or 7 pin cylinder options. Choose on how the facility credentials its users - card and prox with SFIC override points to the 7900, a single facility keyway across every mechanical opening points to the 8200.
18) What is the difference between the Sargent 7800 and 8200 mortise locks?
They share the same mortise footprint, which is why Sargent publishes one installation template and one catalog covering both the 7800 and 8200 series. The 8200 is the heavy duty Grade 1 lock body, offered in 56 functions including electromechanical, security, and monitoring options, and it is the one carrying the 16 million cycle UL result. If a building already has 7800 mortise pockets cut, the 8200 shares that prep.
How fast can I get the Sargent TR-8204-LNB-26D delivered?
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Can I return it if it doesn’t work for me?
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Does the Sargent TR-8204-LNB-26D come with a warranty?
Absolutely. The Sargent TR-8204-LNB-26D 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 TR-8204-LNB-26D?
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