Accentra LBDY8891FL Electric M...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,036.00
$609.41
Accentra LBDY8891FL Electric Mortise Lock Body, Fail Secure, 630 Satin Stainless Steel - angled front view with wiring harness

Accentra LBDY8891FL Electric Mortise Lock Body with Fail Secure Function

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Model: LBDY8891FL-630-24V
$1,036.00
$609.41
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,036.00
$609.41
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Accentra LBDY8891FL Electric Mortise Lock Body, Fail Secure

The Accentra LBDY8891FL is an electric mortise lock body with fail secure (FS) function, meaning the latch bolt is held retracted by power and returns to the locked position on power loss. Intended for commercial access control applications where a power interruption must leave the door secured. Available in 12V and 24V configurations and multiple ANSI finishes.

What Is Included

  • Mortise lock body
  • Armor front
  • Strike
  • Mounting screw pack

Key Specifications

  • Function: Fail Secure (FS) electric mortise
  • Voltage: 12V or 24V (select at order)
  • Application: Commercial
  • Series: 8800 Series Mortise Locks

Typical Applications

  • Access-controlled entry doors in office, healthcare, education, and government facilities
  • Doors requiring a secured-on-power-loss condition (server rooms, restricted corridors, secured stairwells)
  • Replacement or upgrade lock body for existing 8800 Series mortise installations

Refer to the Accentra 8800 Series Mortise Locks catalog for door prep dimensions, backset options, handing, and trim compatibility before ordering.

Manufacturer Resources

8800 Series Mortise Locks

Product Specs

Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Lockbody Only
Commercial/Residential:
Commercial
Product Attribute:
Mortise Locks
Electronic:
No
Product Category:
Mechanical Locks
Department:
Door Hardware

Accentra LBDY8891FL-630-24V – Frequently Asked Questions

1) Does the Accentra LBDY8891FL electric mortise lock stay locked or unlock when the power goes out?
It stays locked. The LBDY8891FL is a fail secure electric mortise lock body, so a power loss leaves the door secured from the outside. That is the right choice for a tenant suite, a stockroom, or an IT closet where you never want the opening to release on a power drop. If your opening is an egress or stair door that has to free up when power fails, fail secure is the wrong function and you want a fail safe body instead.
2) Is the Accentra LBDY8891FL a complete lockset, or do I still need levers and trim?
Lock body only. What ships is the mortise body, the armor front, the strike, and the mounting screw pack. Levers or knobs, roses or escutcheons, and the cylinder are all separate line items, so budget them into the same order or the opening will sit unfinished after the door is prepped.
3) Does the Accentra LBDY8891FL come in 12V or 24V?
Both. The lock body is built in 12V and 24V, and you pick the one your access control power supply actually puts out at the door. Get this wrong and the solenoid either will not pull or gets cooked, so check the supply output and the voltage drop over your run before you choose.
4) Can I get the Accentra LBDY8891FL with a request-to-exit switch?
Yes, RX is an ordering choice on the lock body, taken with or without. Order it with RX when the access control system needs to know the inside lever was turned, so it can shunt the door alarm and log a legitimate exit instead of flagging a forced door. Skip it if the opening already has a REX motion sensor or the door is not monitored.
5) What mortise lock body replaces the Accentra LBDY8891FL on an opening that no longer needs electric control?
The Corbin Russwin ML2002 is a Grade 1 mortise lockbody only with a classroom function in the ML2000 Series, prepped for a 1-3/4 inch door. It is a purely mechanical body, so it drops the fail secure electric control that the LBDY8891FL provides for access control systems, and it is keyed and operated at the door rather than released by a signal from a panel. On an opening being taken off the access control system and returned to key operation, the ML2002 covers the lockbody without carrying the 12V or 24V wiring the LBDY8891FL expects.
6) Is the Corbin Russwin ML2002 a direct substitute for an Accentra 8891FL electric mortise body?
It is not a functional equal. The ML2002 is a Grade 1 classroom mortise lockbody in the ML2000 Series, mechanical throughout, while the 8891FL body is an electric fail secure assembly supplied in 12V and 24V and available with a request-to-exit switch. Both are sold as lock bodies rather than complete lever sets, which is what makes them look interchangeable in a parts list, but the 8891FL body is the one that integrates with an access control panel. Swapping in the ML2002 leaves the door without the electric release and without the request-to-exit signal the panel is reading.
7) What mortise lock should I use instead of an electric fail secure body on a behavioral health patient room?
The Corbin Russwin ML2069 is a Grade 1 institutional privacy mortise lock with an asylum, institution and utility function, a Behavioral Health Series lever, SFIC prep and no core supplied, prepped for a 1-3/4 inch door. It is built around the ligature and privacy concerns of a patient room and is furnished as a complete lock with its lever, where the Accentra 8891FL is a fail secure electric body intended for doors run from an access control system. On a patient room door the ML2069 answers the function and trim question that a bare electric body does not.
8) Should I use an electrified mortise lock like the Accentra LBDY8891FL or an electric strike for access control?
An electrified mortise body puts the control inside the door leaf, so the frame stays as-is and the latch itself is what the reader releases. It suits a door already prepped for a mortise lock, and it needs power transferred to the leaf, usually an electric hinge or a door loop. An electric strike is the cheaper route when the existing mechanical lock is fine and you can cut the jamb instead, but it means frame work and it releases the keeper rather than the lock. If you are running conduit anyway and want the lock to report exits, the mortise body is the one that carries an RX switch.
9) What are my options if I need a mortise lock body but not an electrified one?
Look at the Corbin Russwin ML2000 Series. The ML2002 is a Grade 1 classroom intruder mortise lockbody only, sold the same way (body without trim) and listed for 1-3/4 inch doors, so it drops into the same mortise pocket logic with no wiring at all. For a behavioral health or detention opening, the ML2069 in the ML2000 BHSS Series is a Grade 1 asylum/institution/utility function with a behavioral health lever and SFIC prep, less core. Neither is electrified, so neither will tie into a card reader the way the LBDY8891FL does.
10) I have a Corbin Russwin ML2000 mortise lock in the door now. Can I swap in the Accentra LBDY8891FL?
Treat that as a fresh install, not a straight swap. The two are different manufacturers' bodies and nothing on record says the Accentra body drops into a Corbin Russwin ML2000 prep, and the Accentra is electrified where the ML2002 is not, so you are also adding power transfer to the leaf. Pull the existing body, check the pocket and the cross-bore layout against the Accentra template, and plan on new trim either way since the LBDY8891FL ships without levers.
11) Is the Accentra LBDY8891FL a standalone electronic lock with a keypad or reader built in?
No. It's a wired electric lock body, not an electronic standalone. There is no reader, keypad, or credential handling in it. It takes a 12V or 24V feed from your access control panel or power supply and does what that system tells it, so it only works as part of a larger system with a reader, controller, and power at the door.
12) How do the Corbin Russwin ML2069 and ML2002 differ when choosing a mortise lock for an institutional building?
Both are Grade 1 mortise locks prepped for a 1-3/4 inch door. The ML2002 is a classroom function lockbody only in the ML2000 Series, so it is the body alone and the classroom function governs how the outside lever is locked and released. The ML2069 is an institutional privacy lock in the ML2000 BHSS Series with an asylum, institution and utility function, a Behavioral Health Series lever, and SFIC prep supplied less core, so it arrives with its trim and needs a small format interchangeable core to finish keying. The choice follows the room: classroom doors take the ML2002 function, patient and secure care rooms take the ML2069.
13) What finishes does the Accentra LBDY8891FL electric mortise lock body come in?
Three: 605 bright brass, 606 satin brass, and 630 satin stainless steel. The finish here shows on the armor front and strike, which are the parts that stay visible in the door edge and jamb, so match it to the trim and hinges on the rest of the opening. 630 is the usual pick on commercial jobs where the rest of the hardware is satin stainless.
14) Is the Accentra LBDY8891FL rated for commercial traffic or is it a residential lock?
Commercial. It's built for access-controlled openings in offices, schools, healthcare, retail, warehouse, multi-tenant residential, and government buildings, which is the traffic a mortise body is meant for. A mortise pocket also gives you far more lock in the door than a cylindrical bore does, which is why these end up on entrances and tenant doors that cycle all day.
15) Where do I find the door prep and mortise pocket dimensions for the Accentra 8800 Series mortise lock?
Accentra publishes an 8800 Series mortise lock catalog covering the family, and that is the source for the pocket, cross-bore, and cylinder layout you cut into the door. Prep the leaf from that template before ordering trim, because the mortise pocket, the cylinder hole, and the lever hub all have to land together. The catalog is linked in the product details.
How fast can I get the Accentra LBDY8891FL-630-24V delivered?
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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 Accentra LBDY8891FL-630-24V come with a warranty?
Absolutely. The Accentra LBDY8891FL-630-24V 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 Accentra LBDY8891FL-630-24V?
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