LCN Sentronic Fire/Life Safety...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$815.00
$493.75
LCN LCN 4040SEH SENTRONIC, Surface-Mounted Fire/Life Safety Door Holder LCN-4040SEH

LCN Sentronic Fire/Life Safety Door Holder with Single-Point Hold-Open

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Model: 4040SEH-689-24V
From the 4040 series Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$815.00
$493.75
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LCN Sentronic Fire/Life Safety Door Holder with Single-Point Hold-Open

Professional Fire and Smoke Barrier Door Control Solution

The LCN Sentronic 4040SEH is a surface-mounted fire and life safety door holder designed to provide single-point hold-open functionality for fire and smoke barrier doors. This UL listed device holds doors open until current interruption releases the holding mechanism, allowing the door to close automatically. The non-handed design accommodates both right- and left-handed doors with adjustable hold-open force for reliable operation in critical life safety applications.

Professional Features & Benefits

  • Fire and Life Safety Compliance: UL listed for metal smoke barrier or labeled fire doors and meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards for critical applications.
  • Single-Point Hold-Open Function: Holds doors open until electrical current interruption releases the holding mechanism, providing reliable automated door control.
  • Non-Handed Design: Universal mounting configuration works with both right- and left-handed doors for installation flexibility.
  • Fire Alarm System Integration: Interfaces directly with existing fire and life safety systems to minimize danger under fire conditions.
  • Adjustable Hold-Open Force: Field-adjustable holding force accommodates various door weights and operational requirements.
  • Test Switch Assembly: Includes momentary on/off switch board assembly with fuse for testing door release and over-voltage protection.
  • Manufacturer Warranty: Backed by 2-year limited warranty for added confidence and protection.
  • Flexible Installation Options: Supports both concealed and surface wiring with included wood and machine screw pack for versatile mounting.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details 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 LCN Quality?

LCN Sentronic door holders deliver professional-grade reliability with UL listed construction meeting ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards. Backed by a 2-year limited warranty with field-replaceable components and adjustable hold-open force. Engineered for demanding commercial applications where dependable fire and life safety performance is essential.

Product Documentation & Resources

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
Default Arm/Track:
Standard SEH Arm (SEH)
Subcategory:
Holders and Stops
Product Group:
Door Controls
Product Subgroup:
Door Closers - Surface Mounted
Product Type:
Door Holders
Door Type:
Interior Door
Finish Type:
Powder Coat
Fluid Type:
All-Weather
Fasteners:
Wood and Machine Screws
Mounting Location:
Pull Side
Commercial/Residential:
Commercial
Finish Type:
Plated
Mounting Location:
Push Side
Tags:
lcn 4040seh, 4040seh, lcn4040se 24v sentronic door closer, lcn 4040 se, lcn 4040se, lcn 4040sp, 4040se, 4040se lcn, lcn 4040se sentronic, lcn 4040xp closer, lcn4040se, sentronic 4040se
Product Model:
4040SEH
Collection:
4040 series
Product Voltage:
24V, 120V AC/DC
Mounting Method:
Surface Mount
Product Category:
Door Controls
Department:
Door Hardware

Parts & Accessories

    LCN 4040SEH-689-24V – Frequently Asked Questions

    1) What is the LCN 4040SEH door holder used for?
    The LCN 4040SEH is a surface-mounted fire life safety door holder that holds fire doors open during normal operation. It automatically releases doors when fire alarm signals are triggered, allowing doors to close for compartmentalization.
    2) What door types and weights does this holder accommodate?
    This holder works with standard commercial fire doors. Check manufacturer specifications for exact weight limits and door thickness requirements. Most LCN holders accommodate doors up to 250 pounds.
    3) How does the electronic release function work?
    The unit connects to your fire alarm system via low voltage wiring. When the alarm activates, power is interrupted and the electromagnet releases, allowing the door closer to shut the door automatically.
    4) What power requirements does this door holder need?
    Most LCN electromagnetic holders operate on 24V DC power. Verify exact voltage and current requirements from the product specifications before installation. Connect to a supervised fire alarm circuit.
    5) Can this be installed on any door swing direction?
    Surface-mounted holders can typically accommodate both left and right hand doors. Position the unit according to manufacturer templates. Check clearances for proper door operation.
    6) What fire codes govern electromagnetic door holder installation?
    Installation must comply with NFPA 80, NFPA 72, and local fire codes. Holders must release on fire alarm activation, power failure, and manual override. Verify code requirements with local AHJ.
    7) What basic tools are needed for installation?
    Installation requires drill, appropriate drill bits, screwdrivers, level, measuring tape, and low voltage wire strippers. Follow manufacturer template for exact mounting locations and hole patterns.
    8) How do you test the door holder after installation?
    Test by activating the connected fire alarm zone and manual release button if equipped. Door should release immediately and close completely. Test holding strength by attempting to pull door past holder when energized.
    9) What maintenance does this door holder require?
    Clean magnet face and armature plate monthly to remove debris. Test release function quarterly. Check mounting screws for tightness. Replace unit if magnet face becomes damaged or holding force diminishes.
    10) Are there related LCN door holder models available?
    LCN offers various electromagnetic door holders for different applications. Browse our door hardware section for concealed, wall-mounted, and heavy-duty models to match specific project requirements.
    11) What happens if power fails to the door holder?
    The holder is fail-safe designed. Loss of power immediately releases the electromagnet, allowing the door to close. This ensures fire doors close during emergencies even if electrical systems fail.
    How fast can I get the LCN 4040SEH-689-24V 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 4040SEH-689-24V come with a warranty?
    Absolutely. The LCN 4040SEH-689-24V 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 LCN 4040SEH-689-24V?
    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 4040SEH-689-24V 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 Reliable Door Holder for Peace of Mind

      Posted by David on Jul 31st 2023

      I recently installed the LCN 4040SEH Sentronic Door Holder, and it's a winner! Love the automatic release during fire alarms, ensuring safety for all. The surface-mounted design was easy-peasy to install too. But, folks, it's on the pricey side, so keep that in mind. Overall, a smart investment for that extra peace of mind in emergencies.

    • 5
      A Reliable Guardian for Fire Safety

      Posted by Jesse on Aug 16th 2023

      I gotta share my thoughts on the LCN 4040SEH Sentronic Door Holder from zensupply.com. Loving the fire safety feature – it's like having a vigilant protector for emergencies. The surface-mounted design is sleek too. Only hitch? Mounting took a bit more time and effort than I bargained for, definitely not a snap. But knowing it's keeping my space secure is worth it.

    • 5
      Keeping Doors Open with Style!

      Posted by Jessica on Aug 8th 2023

      So, I grabbed the LCN 4040SEH Sentronic Door Holder, and it's pretty cool. Love the sleek design and how it holds doors open when needed. Only hiccup was adjusting the tension - took a bit of trial and error. Overall, a handy addition for fire safety and easy access.

    • 5
      A Reliable Door Holder for Safety!

      Posted by Sarah on Jul 25th 2023

      I got the LCN 4040SEH Sentronic Door Holder from ZenSupply, and it's great! The surface-mounted design is super convenient and keeps the door secure. The fire-life safety feature adds extra peace of mind. One thing to keep in mind is that adjusting the closing speed can be a bit tricky. Overall, I'm satisfied with the product's performance.

    • 5
      Convenient Fire and Life Safety Door Holder for Peace of Mind

      Posted by Mia on Jul 11th 2023

      Hey everyone, I recently got the LCN 4040SEH Sentronic Surface-Mounted Fire Life Safety Door Holder from ZenSupply.com, and it's been a reliable addition to my safety measures. One thing I really like about this product is its convenience. The automatic release function works smoothly, ensuring quick and efficient closing in case of a fire or emergency. However, one drawback to note is that the installation process can be a bit complicated for those without prior experience. Overall, though, it's a valuable device that provides peace of mind when it comes to fire and life safety.

    !