LCN 4040SE Sentronic Fire/Life...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,706.51
LCN 4040SE-POWDER Sentronic Fire/Life Safety Door Closer with Single-Point Hold-Open, Aluminum Finish (689) — surface-mounted, non-handed track closer

LCN 4040SE Sentronic Fire/Life Safety Door Closer with Single-Point Hold-Open Technology

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Model: 4040SE-689
From the 4040 Series Collection
$1,706.51
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LCN 4040SE Sentronic Fire/Life Safety Door Closer

The LCN 4040SE Sentronic is a surface-mounted electrified door closer/holder rated for interior fire and smoke barrier doors up to 4'0" wide. Cast iron body with a 1-1/2" diameter piston. Non-handed track arm eliminates field handing. Hold-open releases automatically on power interruption, allowing the door to close and maintain fire barrier integrity. Accepts 24V or 120V AC/DC. All-weather fluid for consistent operation across temperature ranges.

Certifications and Compliance

  • UL listed for metal smoke barrier and labeled fire doors
  • ANSI/BHMA A156.15
  • NFPA 101 Life Safety Code
  • ADA Compliant
  • BAA Qualified

Technical Specifications

  • Body Material: Cast Iron
  • Mounting Method: Surface Mount
  • Mounting Detail: Hinge side (pull side) or stop face (push side)
  • Closer Size: 1-4 (field-adjustable)
  • Door Width: Up to 4'0"
  • Voltage: 24V, 120V AC/DC
  • Fluid Type: All-Weather
  • Finish Type: Powder Coat
  • Fasteners: Wood and Machine Screws included
  • Handing: Non-handed
  • Door Type: Interior Door
  • Warranty: 2 Year Limited

Typical Applications

  • Interior fire and smoke barrier doors in commercial office buildings
  • Educational facilities and healthcare institutions
  • Government, municipal, and multi-tenant residential buildings
  • Any application requiring UL-listed electrified hold-open with automatic release on power loss

Product Specs

Series:
4000 Series
ADA Compliant:
Yes
BAA Qualified:
Yes
Mounting Detail:
Surface - Hinge Mount(Pull Side), Stop Face (Push Side)
Warranty:
2 Year
Subcategory:
Fire and Life Safety Closers
Mounting Location:
Pull Side
Product Group:
Door Controls
Product Subgroup:
Door Closers - Electromechanical (Fire and Life Safety)
Product Type:
Surface Mounted Door Closers
Door Type:
Interior Door
Finish Type:
Powder Coat
Fluid Type:
All-Weather
Fasteners:
Wood and Machine Screws
Commercial/Residential:
Commercial
Electronic:
Yes
Closer Size:
1-4 (Field-Adjustable)
Mounting Location:
Push Side
Tags:
lcn 4040se, 4040se closer, 4040se sentronic, 4040se, 4040se door closer, lcn 4040 se, lcn 4040se closer, lcn4040, 4040seh, lsn 4040, lcn 4040seh
Product Model:
4040SE
Collection:
4040 Series
Product Voltage:
24V, 120V AC/DC
Mounting Method:
Surface Mount
Product Category:
Door Controls
Product Substrate:
Iron
Department:
Door Hardware

Parts & Accessories

    LCN 4040SE-689 – Frequently Asked Questions

    1) Will the LCN 4040SE hold the door open and still release it when the fire alarm goes off?
    That is exactly what the 4040SE Sentronic does. It is a closer and electromagnetic holder in one unit: energize it and the door stays open at the hold-open point; cut power (alarm, panel signal, or a power failure) and the hold-open drops out so the closer takes the door to the latch. That is why it is UL listed for metal smoke barrier and labeled fire doors and why it works under NFPA 101. If the building wants a door propped open every day but closed on alarm, this replaces the closer plus separate wall magnet plus coordinator arrangement with one device on the door.
    2) Do I have to order the LCN 4040SE handed for a left- or right-hand door?
    No handing on the closer itself. The 4040SE uses a non-handed track arm, so the same unit goes on a left- or right-hand door and you are not stuck with the wrong part on a job with mixed openings. Two things on the order form ARE handed, though: the metal cover (MC-RH or MC-LH) if you specify one instead of the standard plastic cover, and the double-egress arm (DE-RH or DE-LH). Order the standard arm with the plastic cover and the whole assembly is handing-free.
    3) Can the LCN 4040SE mount on the push side of the door, or does it have to go on the pull side?
    Both. The 4040SE mounts hinge side (pull side) or stop face (push side), so you can keep the closer off the corridor face where the design calls for it, or get around a transom or wall condition on the hinge side. The track mounts to the frame face on the corresponding side. Decide the side before you order the track, since track length is a required selection.
    4) What do I have to specify when ordering an LCN 4040SE besides the finish?
    Four choices are required on every 4040SE. Voltage: 24V or 120V AC/DC, matched to whatever the fire panel or power supply feeds. Arm: standard track arm, or the double-egress arm in right or left hand for a double-egress pair. Track: standard or long. Cover: plastic (standard) or a handed metal cover in right or left hand. Then finish, in one of six powder coat options. Wood and machine screws come in the box, so you are not sourcing fasteners separately, but low-voltage wiring and the power supply are separate.
    5) I have a double-egress pair in a hospital corridor. Will the 4040SE work on those doors?
    Yes, and there is a specific arm for it. The 4040SE offers a double-egress arm in right hand (DE-RH) and left hand (DE-LH) in place of the standard track arm. Double-egress pairs swing opposite directions in a common frame, so each leaf takes the arm matched to its swing. That is the one place handing enters this closer, since the closer body and standard track arm are non-handed. Double-egress corridors in healthcare are a core application for a UL listed hold-open closer that releases on alarm.
    6) Is the LCN 4040SE approved for a federally funded project with Buy American requirements?
    The 4040SE is BAA qualified, which is the box a government, municipal, or federally funded institutional job needs checked. It also carries ANSI/BHMA A156.15, UL listing for metal smoke barrier and labeled fire doors, NFPA 101, and ADA compliance. For a submittal package on a public building, that is the full set of line items a specifier typically asks a fire/life safety closer-holder to satisfy.
    7) What is the difference between the LCN 4040SE and a regular hold-open door closer?
    A mechanical hold-open arm stays open until somebody pushes the door shut, and it is not permitted on a fire or smoke barrier door. The 4040SE holds electrically and releases the instant power drops, so the door self-closes and the barrier stays intact. If your opening is not a rated door and you just want a door to stand open, a mechanical hold-open arm closer such as the Accentra 51 Series (tri-packed hold open arm) or the Orca BHDC1958HO does that job without wiring. If the door is fire or smoke rated, or the AHJ wants alarm-released hold-open, it has to be an electrified closer-holder like the Sentronic.
    8) My opening is not fire rated and there is no power at the head. What surface closer should I use instead of the 4040SE?
    Skip the Sentronic. It only earns its cost where hold-open has to release on alarm; with no power run to the frame it will not function at all. For a standard non-rated commercial interior door, a Grade 1 surface closer covers it: the BEST HD7000 Series (medium duty, Grade 1), the Sargent 1131 (medium duty, Grade 1), or the Falcon SC81A (medium duty Grade 1 cast aluminum). For a heavier or higher traffic opening, the BEST EHD9000 or Sargent 281 cast iron are the heavy duty Grade 1 options.
    9) What is the closest equivalent to an LCN 4040SE if the opening does not need electrified hold-open?
    The 4040SE is an electrified closer/holder that releases its hold-open on power interruption, so its hold-open function depends on a 24V or 120V AC/DC supply at the opening. If the door has no power and only needs a mechanical closer, the Sargent 281 Powerglide is a heavy duty Grade 1 cast iron surface closer, matching the 4040SE on cast iron body construction without the electrical connection. The BEST HD8000 Series is another heavy duty Grade 1 surface closer for the same swap. Neither one holds the door open on a fire alarm signal, so for a smoke barrier door on a hold-open scheme they are not a substitute.
    10) Does the LCN 4040SE Sentronic run on 24 volts or 120 volts?
    Either, but you pick one when you order. The Sentronic accepts 24V or 120V, AC or DC. Most modern jobs tie the hold-open into a fire alarm relay or an access control power supply running 24V; 120V is the choice where the holder is fed directly from building power through an alarm-interrupted circuit. The unit is a single-voltage build, so confirm what the panel is supplying before you place the order rather than after the conduit is run.
    11) Is the LCN 4040SE closer body cast iron or aluminum?
    Cast iron, with a 1-1/2 inch diameter piston. That matters on an institutional corridor door that gets kicked, propped, and slammed thousands of times a year; a cast iron body and a large piston are what carries that abuse without the cylinder walking out of adjustment. It runs all-weather fluid, so closing speed holds steady when the corridor temperature swings, which is the usual cause of a door that latches fine in July and drags in January. Among the peer options, the Sargent 281 is also a cast iron heavy duty body; most of the light and medium duty closers in this category use aluminum.
    12) What finishes does the LCN 4040SE come in, and will it match the other closers in my building?
    Six powder coat finishes: 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. Those are the standard BHMA finish numbers, so 689 on this closer matches 689 on the exit devices and closers already hung elsewhere in the building. If you are standardizing a portfolio, 689 aluminum and 695 dark bronze are the two that carry across most commercial hardware lines. The finish is powder coat over the cast iron body, not a plated finish.
    13) Can I get replacement parts for an LCN 4040SE track closer, or do I have to swap the whole unit?
    Individual components are serviceable. The track roller (4000T-3034), the standard non-handed track (4000T-3038), the standard arm (4000T-3077T), the plastic cover (4000T-72), and the cast iron cylinder assembly (4003T-3071) are all available separately. On a hold-open track closer, the roller and track are what wear first from daily hold-and-release cycles, and replacing a roller is a fraction of the labor of pulling and re-templating a whole closer. For a facility running these on many openings, keeping a roller and a cover on the shelf covers most service calls.
    14) Should I order the standard track or the long track for the LCN 4040SE?
    Track length sets where along the door the arm engages and how far the door swings before hold-open picks up. Standard track (STDTRK) is the default and covers typical door widths in the 4040SE range; the long track (LONG) gives more travel where the opening needs a wider hold-open angle or the frame condition pushes the track out. It is a required selection at order time in either case, and it is one of the few things you cannot change later without re-drilling the frame, so measure the head condition before the order goes in.
    15) Is the LCN 4040SE rated for an exterior entrance door?
    No. The 4040SE is specified for interior doors, and its purpose is fire and smoke barrier openings inside the building, not entrances. For an exterior or storefront opening, look at a Grade 1 surface closer built for it, such as the Norton Rixson 1600 Series aluminum storefront closer or the BEST EHD9000 extra heavy duty Grade 1. Putting an interior-rated electrified holder on an entrance door is the wrong application regardless of how the wiring works out.
    16) I need a wider spring range than the LCN 4040SE covers. What else can I look at?
    The 4040SE is field-adjustable through closer sizes 1 to 4, sized for interior doors up to 4 feet. If the opening calls for a higher spring power, the BEST EHD9000 Series is an extra heavy duty Grade 1 surface closer with adjustable spring sizes 1 to 6, the Accentra 2701 Series covers adjustable spring sizes 1 to 6 with tri-pack mounting, and the Norton Rixson 8501A is a Grade 1 tri-mount surface closer with adjustable size 1 to 6 spring. All three are mechanical closers without the electrified hold-open the 4040SE provides.
    17) Which door closers have a slide track arm like the LCN 4040SE instead of a projecting arm?
    The 4040SE uses a non-handed track arm, with a standard or long track and hinge side pull or stop face push mounting. Among mechanical closers, the Corbin Russwin DC5230 Series is a Grade 1 surface closer with a slide track arm standard and pull side mounting for 1-3/4 inch doors, and the Dorma 8916-JT is a Grade 1 jamb track closer mounted frame face on the pull side. The Corbin Russwin DC6200 and DC8200 Series use a double lever regular arm on the pull side, which projects from the door rather than riding in a track.
    18) What is a simpler closer for a light traffic interior door where the LCN 4040SE is more than the opening needs?
    The 4040SE is a cast iron commercial closer with electrified hold-open and a size 1 to 4 field adjustment. On an interior door with no fire hold-open requirement and lighter traffic, the BEST SL6000 Series is a light duty Grade 1 surface closer with adjustable spring sizes, the Norton Rixson 160 Series is a light commercial Grade 1 surface closer with adjustable spring, and the Falcon SC91A Series is a light duty Grade 3 cast aluminum surface closer. None of them are UL listed hold-open devices, so they do not go on a smoke barrier door running on an alarm release.
    19) Can a delayed action door closer be substituted for an LCN 4040SE?
    They solve different problems. A delayed action closer such as the Orca Hardware BHDC1958DA/PA or BHDC2011DA/PA, both tri-packed non-hold open arm closers for 1-3/4 inch doors, slows the door through the first part of its swing and then closes it every cycle. The 4040SE holds the door fully open on a powered signal and releases it when power is interrupted so the door closes on alarm. If the requirement is extra time to pass through with a cart, delayed action covers it. If the requirement is UL listed hold-open with automatic release, it does not.
    20) We standardize on one closer across a facility. How does the LCN 4040SE fit alongside non-electrified openings?
    The 4040SE covers the interior fire and smoke barrier doors that need powered hold-open with release on power loss, in ADA compliant and BAA qualified form, sizes 1 to 4, in six powder coat finishes from 689 aluminum through 696 brass. For the ordinary interior doors in the same facility that only need closing, the Sargent 1131 is a Grade 1 medium duty surface closer, the BEST HD7000 Series is a Grade 1 medium duty closer with adjustable spring power and backcheck, and the Dormakaba 7414 covers size 1 to 4 at Grade 1 medium duty, which matches the 4040SE spring range.
    21) Does the LCN 4040SE come with mounting hardware, or do I need to buy screws?
    Wood and machine screws are included, which covers both a hollow metal frame and a wood door or frame without a second trip. What is not in the box is anything on the electrical side: the low-voltage wire, the power supply, and the fire alarm relay or interface are separate and belong to the electrical contractor. On the door, the closer, arm, track, and cover you selected ship as the complete mechanical assembly.
    22) Which closers besides the LCN 4040SE have a cast iron body?
    The 4040SE body is cast iron with a 1-1/2 inch diameter piston, and a cast iron cylinder assembly is available as a replacement component. Among peers, the Sargent 281 Powerglide is a cast iron heavy duty Grade 1 surface closer. Falcon builds the SC71A heavy duty and SC81A medium duty closers in cast aluminum, and the Sargent 1331 uses a universal aluminum body, so those are a different construction if cast iron is the spec on the drawing.
    23) Is the LCN 4040SE handed, and which alternatives avoid handing?
    The 4040SE closer itself is non-handed, and its track arm eliminates field handing. Handing shows up only in the double egress arm and metal cover choices, which are specified right or left hand. Several mechanical peers avoid handing a different way, through tri-pack mounting that lets one unit go regular, parallel or top jamb: the Dexter DCH1000 and DCH4000 Grade 1 surface closers are tri-mount, and the Arrow DCN314 ships as a tri-pack regular or parallel arm closer with adjustable spring size 1 to 4.
    How fast can I get the LCN 4040SE-689 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 LCN 4040SE-689 come with a warranty?
    Absolutely. The LCN 4040SE-689 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 LCN 4040SE-689?
    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
    Why buy the LCN 4040SE-689 from ZenSupply?
    ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

    Product Reviews

    • 4
      A Lifesaver for Fire Safety!

      Posted by Saige on Sep 27th 2023

      I got the LCN 4040SE Sentronic Track Closer from zensupply.com, and it's a game-changer for fire safety. The heavy-duty build is impressive, but the installation can be tricky for beginners. Once it's up, though, it's reliable and adds peace of mind. A must for commercial spaces.

    • 5
      A Reliable Closer for Safety - LCN 4040SE Sentronic Surface-Mounted Closer

      Posted by Edward on Oct 11th 2023

      I've installed the LCN 4040SE Sentronic closer from zensupply.com. What's fantastic is its reliability in fire and safety situations; it's a peace of mind. However, it's a bit heavy on the wallet, and the installation might need some pro help. Overall, it's a solid choice for safety but be ready to invest.

    • 5
      Reliable and Safe Door Closer

      Posted by Brody on Oct 4th 2023

      Installed the LCN 4040SE Sentronic Door Closer, and it's solid for fire safety. Love the peace of mind it brings. Drawback? Installation instructions were a bit tricky for me, but once it's up, it works like a charm. Keepin' it safe!

    • 5
      Reliable Safety with LCN 4040SE Closer

      Posted by Lily on Sep 5th 2023

      I installed the LCN 4040SE Sentronic Closer for fire safety, and it's super dependable. No worries about door control during emergencies. The only thing is it's a bit pricey, but for peace of mind, it's worth it. Great for businesses!

    • 5
      Reliable Door Control!

      Posted by Keith on Aug 24th 2023

      The LCN 4040SE Sentronic Door Closer is a heavyweight closer with fire safety in mind. The surface-mounted design is practical and the powder-coat finish adds durability. Adjusting it initially was a bit tricky, though. Keep your doors controlled and secure with this closer!

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