Accentra 4791LN Pacific Beach ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$925.00
$716.21
Yale Commercial Yale 4791LN Pacific Beach Grade 1 Fail Secure Electrified Cylindrical Lever Lock YAL-PB4791LN

Accentra 4791LN Pacific Beach Grade 1 Fail Secure Electrified Cylindrical Lever Lock

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Model: YAL-PB-4791LN-626
From the 4700 Series Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$925.00
$716.21
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Accentra 4791LN Pacific Beach Grade 1 Fail Secure Electrified Cylindrical Lever Lock

Professional Grade 1 Cylindrical Lever Lock Solution

The Accentra 4791LN Pacific Beach cylindrical lever lock delivers Grade 1 performance for demanding commercial applications. This fail secure electrified lock features adjustable door thickness from 1-3/8" to 1-3/4", 2-3/4" standard backset, and 1/2" stainless steel latchbolt throw. ANSI/BHMA Grade 1 certified and UL fire-rated up to 3 hours, this lock provides reliable security with heavy-gauge steel die-cast mechanism and zinc-plated chromated construction.

Professional Features & Benefits

  • ANSI/BHMA: A156.2, Series 4000 Grade 1
  • UL-cUL: UL-cUL fire-rated up to 3 hours
  • Windstorm: 4700LN Certified (refer to local codes)
  • Mechanism: Heavy-gauge steel, die-cast, zinc-plated, chromated
  • Backset: 2-3/4" standard
  • Latchbolt: 1/2" stainless steel throw standard
  • Guardbolt: Deadlocks latchbolt when door is closed; standard on all locking functions
  • Door Thickness: 4700LN adjustable from 1-3/8" to 1-3/4". 4700 adjustable from 1-3/4" to 2"
  • Fronts: 2-1/4" x 1-1/8" beveled standard; flat fronts available to order
  • Cylinders: Brass, 6-pin, keyed-random cylinder with two keys furnished standard, 7-pin not available.
  • Reversibility: Non-handed
  • Strikes: ANSI strike 4-7/8" x 1-1/4" x 1-1/4" lip to center supplied standard. Optional T-strike available to order for 4700LN.
  • Finishes: 4700LN available in 7 finishes, 4700 available in satin stainless steel (630) only.
  • Warranty: 5-year mechanical

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm fail secure operation is appropriate for the application security requirements.
  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, fail secure locking, 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 Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Accentra Quality?

Accentra cylindrical lever locks deliver professional-grade reliability with heavy-gauge steel die-cast construction and Grade 1 certification for demanding commercial applications. UL fire-rated up to 3 hours with 5-year mechanical warranty for added confidence. Engineered for consistent performance where dependable access control and security are essential.

Product Specs

Series:
4700 Series
Subcategory:
Cylindrical
Grade:
Grade 1
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Commercial/Residential:
Commercial
Electronic:
Yes
Lock Type:
Cylindrical
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Model:
YAL-4791LN
Collection:
4700 Series
Lever Design Name:
Pacific Beach Lever
Product Category:
Mechanical Locks
Department:
Door Hardware

Accentra YAL-PB-4791LN-626 – Frequently Asked Questions

1) Will the Accentra 4791LN electrified lever lock fit a 1-3/4 inch commercial door?
Yes. The 4700LN chassis adjusts from 1-3/8 to 1-3/4 inches, so a standard 1-3/4 inch commercial door is right in range, and so is an older 1-3/8 inch interior door. If your door is thicker than 1-3/4 inches, up to 2 inches, that is the 4700 (non-LN) chassis instead, and the 4700 only comes in satin stainless steel 630.
2) What does fail secure mean on the 4791LN, and what happens if the building loses power?
Fail secure means the outside lever stays locked when power is removed. Cut the power and the door stays secured from the outside; the inside lever always retracts the latch for free egress. That makes it the wrong choice on an opening where fire or life safety requires the door to unlock on power loss. For that you want a fail safe electrified cylindrical lever such as the Corbin Russwin CL33903, which runs on 12VAC/DC.
3) Will the 4791LN latch into the strike already in my frame?
It ships with an ANSI strike, 4-7/8 by 1-1/4 inches with a 1-1/4 inch lip to center, and the latchbolt has a 1/2 inch stainless steel throw at a 2-3/4 inch backset. If your frame is already prepped for a standard ANSI strike at 2-3/4 backset, it drops in. An optional T-strike is available to order for the 4700LN if your frame carries the older T prep.
4) Is the Accentra 4791LN lever lock approved for a fire rated door?
It is UL-cUL fire rated up to 3 hours and certified to ANSI/BHMA A156.2 Series 4000 Grade 1. The 4700LN is also Windstorm certified, though local codes govern that. The guardbolt deadlocks the latchbolt when the door closes, which is standard on all locking functions.
5) What cylinder and keying comes with the 4791LN, and can I get it 7-pin?
A brass 6-pin keyed-random cylinder with two keys is furnished standard. 7-pin is not available on this lock, so if your facility is standardized on a 7-pin system, this chassis will not join that keyway. Keyed random means the locks arrive on unrelated keys unless you arrange keying separately.
6) What is the closest equivalent to the Accentra 4791LN electrified lever lock from another manufacturer?
The Corbin Russwin CL33903 is the nearest peer. Both are Grade 1 electrified cylindrical lever locks. The difference that decides the job is the electrical behavior: the Accentra 4791LN is fail secure, meaning the lever stays locked when power is lost, while the CL33903 is a fail safe lever that unlocks on power loss. The CL33903 also lists a 1-3/4 inch to 2 inch door thickness range, where the 4791LN in the LN trim adjusts from 1-3/8 inch to 1-3/4 inch. If your egress plan calls for fail safe on power loss, the Corbin Russwin is the one that matches; if the opening must stay secure during an outage, stay with the 4791LN.
7) I need a fail safe electrified lever instead of fail secure. What should I order?
Order the Corbin Russwin CL33903 in place of the Accentra 4791LN. It is a Grade 1 electrified cylindrical lever lock built for fail safe operation on 12VAC/DC, so the lever releases when power drops - the behavior most fire alarm interfaces and stair reentry schemes require. The 4791LN is fail secure and will remain locked under the same condition. Confirm door thickness before you commit: the CL33903 is listed for 1-3/4 inch to 2 inch doors.
8) The opening does not need access control. What Grade 1 lever lock should I use instead of the 4791LN?
For a mechanical Grade 1 lever with no wiring, look at the Falcon K101 or the Dexter C1000 Series. The Falcon K101 is a Grade 1 heavy duty passage cylindrical lock with non-handed levers, fire rated, and covers a wide 1-3/8 inch to 2-1/4 inch door thickness range. The Dexter C1000 Series covers keyed Grade 1 functions including classroom, classroom security and asylum on 1-3/8 inch to 1-3/4 inch doors. Both drop the electrification and the power supply, wiring and door prep that go with the 4791LN, which is an electronic lock by design.
9) Is a keypad lever like the Lockey 2835 or Delaney LP250 a substitute for the Accentra 4791LN?
No - they solve a different problem. The Lockey 2835 is a mechanical pushbutton keyless lever with passage function on 1-3/16 inch to 2 inch doors, and the Delaney LP250 is a Grade 2 electronic keypad leverlock. Both grant access at the door from a code entered at the lock. The Accentra 4791LN is an electrified Grade 1 lock with no credential reader of its own; it is wired to an access control system that releases it remotely, and it is fail secure. If you have a head-end system, card readers, or a remote release, the 4791LN is the correct device. If you want standalone code entry with no panel, the keypad units are the direction.
10) My doors are 1-3/4 inch to 2 inch thick. Does the Pacific Beach 4791LN fit, or do I need something else?
The 4700LN trim on the Pacific Beach 4791LN adjusts from 1-3/8 inch to 1-3/4 inch, and the 4700 trim adjusts from 1-3/4 inch to 2 inch - so for a 2 inch door you want the 4700 version, which is furnished in satin stainless steel 630 only. If you need an electrified Grade 1 lever already rated for that thicker range, the Corbin Russwin CL33903 lists 1-3/4 inch to 2 inch. For a non-electrified Grade 1 option in that range, the Corbin Russwin CL3110 vandal resistant passage lever is also listed at 1-3/4 inch to 2 inch and is fire rated.
11) Do I have to specify handing when I order the Pacific Beach 4791LN?
No. The lock is non-handed and reversible, so one part number covers left and right hand openings. That is useful for an MRO stockroom, one lock on the shelf covers any door in the building.
12) What finishes does the Pacific Beach 4791LN come in for matching existing building hardware?
Eight finish choices: 605 bright brass, 606 satin brass, 612 satin bronze, 613E dark oxidized satin bronze equivalent, 625 bright chrome, 626 satin chrome, plus BSP black suede and WSP white suede powder coat. If the rest of your openings are 626 satin chrome, the most common commercial finish, it matches without a special order.
13) What is the front size on the 4791LN latch, and can I get a flat front?
The standard front is 2-1/4 by 1-1/8 inches, beveled, which suits a normal beveled door edge. Flat fronts are available to order if your existing door prep or a square edge calls for one.
14) Should I use an electrified cylindrical lock like the 4791LN or a standard keyed storeroom lever?
Go electrified only if the opening ties into an access control system, card reader, keypad, or remote release. The 4791LN is built for that, with a die-cast heavy-gauge steel, zinc-plated chromated mechanism and wiring run through the door to the chassis. If the door just needs to stay locked outside and free out, a mechanical storeroom lever does the job with no power supply, no transfer hinge and no wiring, for example the Cal-Royal AG05 Grade 2 storeroom lever with a deadlocking latchbolt.
15) What is a Grade 1 equivalent to the 4791LN from another brand for a thicker door?
For a door between 1-3/4 and 2 inches, the Corbin Russwin CL33903 electrified cylindrical lever is Grade 1 and covers that thickness range, though it is a fail safe function rather than fail secure. For non-electrified Grade 1 openings in the same building, the Dexter C1000 Series covers classroom, classroom security and passage at 1-3/8 to 1-3/4 inches, matching the 4791LN door range.
16) Can I use a Grade 2 lever like the Hager 2580 or Cal-Royal AG05 in place of the 4791LN?
Only if the opening does not need electrified control and the lower cycle grade suits the traffic. The Hager 2580 is a Grade 2 storeroom cylindrical lock with the Withnell lever for 1-3/8 inch to 2 inch doors, and the Cal-Royal AG05 is a Grade 2 storeroom lever with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors. Both are purely mechanical storeroom function - key from outside, always locked - with no wiring. The Accentra 4791LN is ANSI/BHMA A156.2 Series 4000 Grade 1 and is released electrically by an access control system. For a spec drawing that calls out Grade 1, neither Grade 2 lock will satisfy the submittal.
17) What matches the Pacific Beach lever on the non-locking doors in the same corridor?
If you want every opening on the run to carry the same Grade 1 build, the Falcon T101 and Falcon K101 are Grade 1 heavy duty cylindrical passage levers, and the Dexter C1000 Series passage lever is Grade 1 with a clutching, non-keyed design. The Design Hardware X75 is a Grade 1 passage lever lockset for 1-3/4 inch doors. None of these will carry the Pacific Beach lever profile of the Accentra 4791LN, so the lever shape will read differently down the corridor. To keep the trim identical, stay inside the Accentra 4700 Series for the non-locking functions.
18) Is the Corbin Russwin 585F715 lock lever an alternative to the 4791LN?
No. The Corbin Russwin 585F715 is a Grade 1 lock lever - trim for an ED8000 pushpad exit device and the CL3300 cylindrical lock series, sized for 1-3/4 inch to 2 inch doors. It is a handle, not a complete lockset. The Accentra 4791LN is a full electrified cylindrical lever lock with chassis, latchbolt with guardbolt, and a 6-pin brass cylinder with two keys. Order the 585F715 only when you already have the device body on the door and need replacement trim.
19) What should I use if I need a classroom security or asylum function rather than fail secure electrified?
The Dexter C1000 Series covers those functions mechanically at Grade 1: the C1000 classroom security is a keyed clutching lever for 1-3/8 inch to 1-3/4 inch doors, and the C1000 asylum F87 covers 1-3/8 inch to 2 inch doors. The Arrow MK33 asylum lock is another option, a heavy duty cylindrical lock with a conventional cylinder in the Schlage C keyway, though it is a knob rather than a lever. The Accentra 4791LN is fail secure and depends on an access control system for release, so it is not the right choice when a staff member needs to secure the door with a key from inside the room.
20) Which alternatives give me a Schlage C keyway if I am keying into an existing system?
The Accentra 4791LN is furnished with a brass 6-pin keyed-random cylinder and two keys; 7-pin is not offered. If your building is already keyed to Schlage C, the Cal-Royal AG00 entrance lever and AG03 classroom lever both come with a 6-pin Schlage C keyway keyed different, with the AG00 on a 2-3/8 inch backset and the AG03 on a 2-3/4 inch backset. The Arrow MK33 also uses a conventional cylinder in the Schlage C keyway. Note that none of those are electrified, so if the opening must stay on access control you will want to discuss a cylinder change for the 4791LN instead of switching products.
21) Is the Accentra 4791LN heavy duty enough for a school or hospital corridor?
Grade 1 is the top ANSI/BHMA commercial durability tier, and this is a commercial-rated lock intended for offices, schools, healthcare, retail, industrial, multi-tenant residential and government buildings. Grade 2 and Grade 3 levers, common on lighter-traffic work, are not the right call on a high-cycle corridor.
22) I need matching inactive trim next to a 4791LN opening. What dummy lever works?
For a Grade 1 build alongside the Accentra 4791LN, the BEST 9K Series 1DT single dummy trim is a Grade 1 non-keyed heavy duty cylindrical lever dummy. The BEST 7KC Series 1DT single dummy is the medium duty Grade 2 equivalent if the door sees light use. Both are surface trim with no latch, so they suit a fixed inactive leaf only - they will not latch or hold a door closed the way the 4791LN latchbolt and guardbolt do.
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Can I return it if it doesn’t work for me?
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Does the Accentra YAL-PB-4791LN-626 come with a warranty?
Absolutely. The Accentra YAL-PB-4791LN-626 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 YAL-PB-4791LN-626?
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