LCN 3133SE-POWDER Sentronic Co...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,274.00
$765.63
LCN LCN 3133SE SENTRONIC, Concealed In Door, Single Lever Arm Track Closer - Powder Coat Finish LCN-3133SE-POWDER

LCN 3133SE-POWDER Sentronic Concealed Fire Door Closer with Single Lever Arm Track and Hold-Open Function

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Model: 3133SE-690
$1,274.00
$765.63
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,274.00
$765.63
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LCN 3133SE Sentronic Concealed Fire Door Closer with Single Lever Arm Track and Hold-Open Function

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 with cast iron construction and is specifically designed for interior doors up to 4'0". The unit is UL listed for metal smoke barrier or labeled fire doors and meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards with 24V, 120V AC/DC operation.

Professional Features & Benefits

  • Door Width Compatibility: Designed for interior doors up to 4'0" with concealed-in-door mounting configuration for seamless integration.
  • Heavy-Duty Construction: Cast iron body design with 1-1/8" diameter piston provides exceptional durability for commercial fire door applications.
  • Dual Power Options: 24V, 120V AC/DC operation provides flexible integration with various fire alarm systems and power supplies.
  • UL Listed Fire Safety: UL listed for metal smoke barrier or labeled fire doors with ANSI/BHMA A156.15 and NFPA 101 Life Safety Code compliance.
  • Dual-Function Operation: Functions as full rack-and-pinion door closer when hold-open is not engaged or electrical current is interrupted during emergency conditions.
  • All-Weather Reliability: All-weather fluid ensures consistent operation across temperature variations in commercial environments.
  • Adjustable Hold-Open Force: Hold-open force is field-adjustable to accommodate various door weights and application requirements.
  • 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: Powder Coat
  • 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 with Fire Doors
  • Educational Facilities Fire Safety Systems
  • Healthcare Institutions Smoke Barrier Doors
  • Multi-Tenant Residential Fire Doors
  • Government and Municipal Buildings
  • Industrial Facilities Fire Protection
  • Hotels and Hospitality Fire Safety

Fire Safety Integration

The 3133SE Sentronic integrates seamlessly with existing fire and life safety systems, providing automatic door closure when electrical current is interrupted during fire conditions. The momentary on/off switch board assembly enables testing of door release function while providing over-voltage protection for system reliability and code compliance.

Why Choose LCN Quality?

LCN Sentronic door closers deliver professional-grade reliability with cast iron construction and all-weather fluid rated for demanding commercial fire door applications. Backed by a 2 Year limited warranty and UL listing for fire doors, these closers meet stringent NFPA 101 Life Safety Code requirements. Engineered for critical fire safety applications where dependable performance protects life and property.

Product Specs

Series:
3130SE Series
ADA Compliant:
Yes
BAA Qualified:
Yes
Warranty:
2 Year
Closer Size:
3
Default Arm/Track:
Standard Arm (STDTRKARM)
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:
Powder Coat
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-690 – Frequently Asked Questions

1) Will the LCN 3133SE Sentronic closer work on a labeled fire door or a smoke barrier door?
That's exactly what the 3133SE Sentronic is built for. It's UL listed for metal smoke barrier or labeled fire doors, and it meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code. The hold-open releases when current drops, so the door self-closes under alarm or power loss. On a labeled opening, that release behavior is the whole point of using an electromechanical closer/holder instead of a plain closer.
2) Do I have to specify handing when I order an LCN 3133SE Sentronic?
Yes, handing is a required choice, right hand or left hand. A concealed-in-door closer is machined into the door itself, so the unit is not field-reversible the way a surface closer often is. Confirm the swing at the opening before the order goes in, because the wrong hand means the prep won't line up.
3) What voltage does the LCN 3133SE Sentronic hold-open closer run on?
24V or 120V, AC or DC. That dual rating is what lets it tie into most existing fire alarm panels and low-voltage power supplies without a separate transformer stage. The unit also carries a momentary on/off switch board assembly for testing the door release, with over-voltage protection built in.
4) What happens to the door if power fails or the fire alarm trips on an LCN 3133SE?
The hold-open drops and the door closes. When hold-open isn't energized, the 3133SE works as a full rack-and-pinion door closer, so it controls the door through the swing rather than just letting it slam. That's the behavior code requires on a fire or smoke barrier opening: the door has to close and latch on alarm without anyone touching it.
5) What's the difference between the standard arm/SE track and the long arm/SEL track on the 3133SE?
Track choice is required on the 3133SE and it's the second thing to settle after handing. The standard arm with SE track (STDTRK) is the default configuration shipped with this closer. The long arm with SEL track (LONG) is the alternative selection. Both are single lever arm track setups running in a track at the head; pick the one that matches the frame condition and the arm reach you need at that opening.
6) Should I use a concealed-in-door closer/holder like the LCN 3133SE or a surface-mounted one?
The 3133SE is concealed in the door itself, with the arm running in a track at the head. Nothing shows on the door face, which is why it gets specified in lobbies, healthcare corridors and anywhere the finish matters. The trade-off is the door has to be prepped for it, so it's a decision made before the door is ordered or in a full door replacement. If you're retrofitting an existing door that has no concealed prep, a surface-mounted closer/holder is the practical choice instead.
7) Can the hold-open force be adjusted in the field on the LCN Sentronic 3133SE?
Yes. Hold-open force is field-adjustable, so a heavier door or a corridor with stack pressure can be dialed in after install rather than swapping the unit. Note there's no delayed-action function on this closer, so if your spec calls for delayed close, this isn't the model.
8) Is the LCN 3133SE ADA compliant and Buy American qualified?
Both. The 3133SE is ADA compliant and BAA qualified, which is the pair of boxes that usually has to be checked on government, school and healthcare work before a closer gets approved. For federally funded jobs the BAA qualification is typically the gating item.
9) Does the LCN 3133SE come with mounting screws, or do I need to order fasteners separately?
Wood and machine screws are included, which covers both wood and hollow metal door construction. What isn't in the box is the power: the 24V or 120V supply and the alarm-panel connection are part of the electrical scope, so coordinate that with whoever is running the fire alarm side before the install date.
10) I need magnetic hold-opens on a corridor of fire doors. Is an LCN 3133SE closer/holder the same thing?
Not the same approach. A wall or floor magnet plus a separate closer is two devices and two preps; the 3133SE Sentronic is a single unit that does both the closing and the electric hold-open, concealed in the door with the arm in a head track. On a corridor of interior fire doors up to 4'0", that single-point hold-open means one wiring run per door and nothing standing off the wall for carts to hit. Where the doors have no concealed prep, the magnet-plus-surface-closer route is still the way to go.
11) What finishes does the LCN 3133SE Sentronic closer come in?
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 matching the other openings in a building is a matter of reading the number off the existing hardware. Since the closer body is concealed in the door, the finish you actually see is the arm and track at the head.
12) Will the LCN 3133SE keep closing consistently in an unheated stairwell or a building with big temperature swings?
It uses all-weather fluid, so the closing speed doesn't drift the way a standard fluid does when temperature moves. Body construction is cast iron. That said, this is specified as an interior door closer, so use it on interior fire and smoke barrier openings rather than on a door exposed directly to weather.
How fast can I get the LCN 3133SE-690 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-690 come with a warranty?
Absolutely. The LCN 3133SE-690 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-690?
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
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