LCN 3133SE-PLATED Sentronic Co...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,577.00
$1,010.90
LCN LCN 3133SE SENTRONIC, Concealed In Door, Single Lever Arm Track Closer - Plated Finish LCN-3133SE-PLATED

LCN 3133SE-PLATED Sentronic Concealed Door Closer with Hold-Open and Single Lever Arm

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Model: 3133SE-652
$1,577.00
$1,010.90
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,577.00
$1,010.90
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LCN 3133SE Sentronic Concealed Door Closer with Hold-Open and Single Lever Arm

Professional Fire and Smoke Barrier Door Control Solution

The LCN 3133SE Sentronic is a concealed-in-door closer/holder designed to provide single-point hold-open functionality for fire and smoke barrier doors. This professional-grade door closer features a 1-1/8" diameter piston and cast iron construction for reliable performance in interior doors up to 4'0". UL listed for smoke barrier or labeled fire doors meeting ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards with 24V, 120V AC/DC operation.

Professional Features & Benefits

  • Door Size Compatibility: Designed for interior doors up to 4'0" with concealed-in-door mounting for clean aesthetics and professional appearance.
  • Heavy-Duty Construction: Cast iron body design with 1-1/8" diameter piston provides exceptional durability for demanding commercial applications.
  • Flexible Power Options: Standard 24V, 120V AC/DC operation accommodates various electrical system requirements for versatile installation.
  • Fire Safety Integration: UL listed for smoke barrier or labeled fire doors with interface capability for fire alarm systems and emergency response.
  • Adjustable Hold-Open Force: Field-adjustable hold-open mechanism allows customization for specific door weight and application requirements.
  • All-Weather Performance: All-weather fluid ensures consistent operation across temperature variations for reliable year-round performance.
  • Code Compliance Certification: Meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards for professional fire safety applications.
  • Manufacturer Warranty: 2-year limited warranty provides added confidence and protection for commercial installations.

Technical Specifications

  • ADA Compliant: Yes
  • BAA Qualified: Yes
  • Closer Size: 3
  • Commercial/Residential: Commercial
  • Default Arm/Track: Standard Arm (STDTRKARM)
  • Delay Function: No
  • Department: Door Hardware
  • Door Type: Interior Door
  • Electronic: Yes
  • Fasteners: Wood and Machine Screws
  • Finish Type: Plated
  • Fluid Type: All-Weather
  • Handle Type: Lever
  • Mounting Detail: Concealed - In the Door
  • Mounting Location: In the Door
  • Mounting Method: Concealed
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Model: 3133SE
  • Product Subgroup: Door Closers - Electromechanical (Fire and Life Safety)
  • Product Substrate: Iron
  • Product Type: Door Closers
  • Product Voltage: 24V, 120V AC/DC
  • Series: 3130SE Series
  • Subcategory: Fire and Life Safety Closers
  • Warranty: 2 Year

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Fire and Smoke Barrier Door Systems

Fire Safety Integration

UL listed for smoke barrier or labeled fire doors with interface capability for fire alarm systems. Functions as a full rack-and-pinion closer when hold-open is not engaged or electrical current is interrupted, ensuring automatic door closure during fire emergencies for code compliance and occupant safety.

Why Choose LCN Quality?

LCN Sentronic door closers deliver professional-grade reliability with cast iron construction and UL listing for demanding fire safety applications. Backed by a 2-year limited warranty and designed to meet ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards. Engineered for commercial applications where dependable fire safety performance and code compliance are essential.

Product Specs

Series:
3130SE Series
ADA Compliant:
Yes
BAA Qualified:
Yes
Default Arm/Track:
Standard Arm (STDTRKARM)
Warranty:
2 Year
Closer Size:
3
Subcategory:
Fire and Life Safety Closers
Mounting Location:
In the Door
Mounting Detail:
Concealed - In the Door
Product Group:
Door Controls
Product Subgroup:
Door Closers - Electromechanical (Fire and Life Safety)
Product Type:
Overhead Concealed Closers
Door Type:
Interior Door
Finish Type:
Plated
Fluid Type:
All-Weather
Fasteners:
Wood and Machine Screws
Commercial/Residential:
Commercial
Electronic:
Yes
Handle Type:
Lever
Product Model:
3133SE
Product Voltage:
24V, 120V AC/DC
Delay Function:
No
Mounting Method:
Concealed
Product Category:
Door Controls
Product Substrate:
Iron
Department:
Door Hardware

LCN 3133SE-652 – Frequently Asked Questions

1) Will the LCN 3133SE Sentronic closer work on an exterior entrance door?
No. The 3133SE Sentronic is specified for interior doors only, and it is a commercial-duty unit. For an exterior opening you want a surface-mounted exterior-rated closer instead. Where the 3133SE belongs is interior fire and smoke barrier doors, concealed in the door leaf itself.
2) How does a concealed-in-door closer like the LCN 3133SE mount compared to a surface closer?
The 3133SE body is morticed into the top of the door leaf, with an arm running to a track in the frame head. Nothing shows on the face of the door. That means the door has to be prepped for the closer body, so it is a decision made before the door is hung or ordered. A surface closer bolts to the door face or frame and can go on an existing door with no milling. If the doors are already in place and unprepped, a surface closer is the easier path.
3) What happens to the LCN 3133SE hold-open when the fire alarm trips or the power goes out?
It releases and the door closes. The Sentronic holds the door open electrically at a single point; drop the current, either from an alarm interface or a plain power failure, and it reverts to a full rack-and-pinion closer and shuts the door. That is the whole point of the electromechanical hold-open on a smoke or fire barrier opening: no separate magnetic holder, no separate closer.
4) Is the LCN 3133SE closer listed for use on a labeled fire door?
Yes. The 3133SE Sentronic is UL listed for smoke barrier or labeled fire doors and meets ANSI/BHMA A156.15 and the NFPA 101 Life Safety Code. For a facility standardizing hold-open hardware on rated corridor and stair doors, that combination is what the AHJ looks for.
5) Do I have to specify handing when ordering the LCN 3133SE Sentronic?
Yes, handing is required. The 3133SE is ordered right hand or left hand, and the concealed body and arm are not field-reversible in the way a surface closer often is. Determine the hand at the opening before the order goes in, because a concealed unit prepped into the wrong hand of door is not a fix you make on site.
6) What arm and track choices are there on the LCN 3133SE, and when do I need the long one?
Two: the standard arm with SE track, which is the default, and the long arm with SEL track. The standard arm and track covers ordinary interior openings. The long arm option exists for openings where the geometry needs more reach, so if the frame condition is not standard, that is the one to call out on the order. If you say nothing, you get the standard arm and SE track.
7) Does the LCN 3133SE Sentronic have delayed action?
No delay function on this one. Hold-open is the feature here, and it is field adjustable for hold-open force so you can tune it to the weight of the door. If the requirement is a timed delayed close for slower traffic rather than a full electric hold-open, this is not the closer for that spec.
8) Is the LCN 3133SE Buy American Act compliant for a federal or municipal job?
Yes, it is BAA qualified, which is what a government or municipal spec typically asks for on door hardware. Pair that with the UL listing for fire and smoke barrier doors and it clears the usual two hurdles on a public building corridor door package.
9) Do wood doors and hollow metal doors both work with the LCN 3133SE, and are screws included?
Both wood and machine screws come with the closer, so it fastens into a prepped wood door or a hollow metal door. The door still has to be morticed for the concealed body and the frame prepped for the track, which is work you either order into the door or do on site.
10) What finishes does the LCN 3133SE Sentronic closer come in?
Seven plated finishes: 616 satin bronze blackened, 632 bright brass, 633 satin brass, 639 satin bronze, 646 satin nickel, 651 bright chrome, and 652 satin chrome. Since the closer body is buried in the door, the finish really only shows on the arm and track at the head, so match it to the exposed hardware on the rest of the opening rather than to the door.
11) How durable is the LCN 3133SE body, and will it drift out of adjustment with building temperature swings?
Cast iron body, and it uses all-weather fluid, so the closing speed stays consistent as temperature moves. In an unconditioned corridor, a warehouse, or a stair tower that swings cold in winter, that is what keeps you from re-adjusting the valves twice a year.
How fast can I get the LCN 3133SE-652 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 3133SE-652 come with a warranty?
Absolutely. The LCN 3133SE-652 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 3133SE-652?
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 3133SE-652 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.
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