LCN 4020-3049 Hold Open Arm wi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$245.00
$195.64
LCN 4020-3049 Hold Open Arm with 140° Adjustable Function

LCN 4020-3049 Hold Open Arm with 140° Adjustable Function

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Model: 4020-3049 RH 689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$245.00
$195.64
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LCN 4020 Series Hold Open Arm with 140° Adjustable Function

Professional Door Closer Accessory for Enhanced Control

The LCN 4020 Series Hold Open Arm provides adjustable hold open functionality for 4020 Series door closers with 140° hold open capability and 5 3/4" (146 mm) maximum reveal. This handed accessory features elbow adjustment for precise positioning and ADA compliant operation in commercial applications.

Professional Features & Benefits

  • Adjustable Hold Open Function: 140° hold open with elbow adjustment allows precise positioning for various door configurations and traffic patterns.
  • Maximum Reveal Specification: 5 3/4" (146 mm) maximum reveal accommodates standard commercial door installations with proper clearance.
  • 4020 Series Compatibility: Specifically designed for LCN 4020 Series door closers ensuring proper fit and reliable operation.
  • Handed Configuration: Available in handed versions to match specific door swing requirements and installation needs.
  • ADA Compliant Design: Meets ADA compliance requirements for accessible door operation in commercial facilities.
  • Commercial-Grade Construction: Built for demanding commercial applications where reliable hold open function is essential for traffic flow.

Technical Specifications

  • ADA Compliant: Yes
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Model: 4020-3049
  • Product Subgroup: Parts and Accessories
  • Product Type: Hold Open Arm
  • Series: 4020 Series
  • Subcategory: Parts and Accessories

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 door closer accessories deliver professional-grade reliability with precision-engineered components designed for commercial applications. ADA compliant construction ensures accessibility compliance while providing dependable hold open function. Engineered for demanding commercial environments where consistent door control performance is essential.

Manufacturer Resources

LCN Full Line Catalog

Product Specs

Series:
4020 Series
Subcategory:
Parts and Accessories
Product Group:
Door Controls
Product Subgroup:
Parts and Accessories
Product Type:
Door Closer Arms
Commercial/Residential:
Commercial
ADA Compliant:
Yes
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Model:
4020-3049
Product Category:
Door Controls
Department:
Door Hardware

LCN 4020-3049 RH 689 – Frequently Asked Questions

1) Do I need to know the door handing before ordering the LCN 4020 hold open arm?
Yes, this arm is handed. It is ordered left hand or right hand, and the two are not interchangeable, so stand outside the opening and note which side the hinges are on before you order. Get it wrong and the elbow adjustment will not set up against the jamb correctly.
2) How much reveal can the LCN 4020 hold open arm handle on a deep frame?
Maximum reveal is 5 3/4 inches (146 mm). Reveal is the distance from the face of the door to the face of the frame stop where the arm shoe lands, so measure that on your opening first. Anything deeper than 5 3/4 inches and this arm will not reach; you would need a different mounting approach.
3) Can I add hold open to an existing LCN 4020 closer without replacing the whole closer?
That is exactly what this arm is for. The 4020-3049 swaps the arm assembly on a 4020 closer already hung on the door, giving you 140 degree adjustable hold open without pulling the closer body, drilling new holes, or repainting the door. For a property manager with a run of 4020s in a building, it is the cheap way to convert selected openings.
4) What is the closest hold open door closer arm to the LCN 4020-3049 if the closer on the door is a Falcon SC70A?
Use the Falcon SC70A-3049/PA hold open arm, which comes with a PA bracket and is built for SC70A Series door closers. The LCN 4020-3049 hold open arm is made for LCN 4020 Series closers and is not a closer arm you fit to a Falcon body. Match the arm to the closer series stamped on the body: 4020 Series takes the LCN arm, SC70A Series takes the Falcon arm.
5) I need a hold open arm that also stops the door at the hold open point - what should I order instead of the LCN 4020-3049?
For a stop function built into the arm, look at the Falcon SC60A-3049DS hold-open dead stop parallel arm assembly, or the Sargent 25-CPSH heavy-duty hold-open parallel arm with compression stop. Both add a stop to the hold open function; the LCN 4020-3049 is a hold open arm with 140 degree adjustable function and elbow adjustment, without a stop in the arm. The Falcon assembly fits SC60A Series closers and the Sargent arm fits 351 and 281 closers, so confirm the closer body before ordering.
6) The closer is top jamb mounted, not parallel arm - is the LCN 4020-3049 still the right hold open arm?
The LCN 4020-3049 is the hold open arm for LCN 4020 Series closers and is handed to the door swing. On Sargent 351 or 281 closers, the arm sold for standard and top jamb mount hold open is the Sargent 25-H, while the 25-CPSH and 25-CPS are parallel arm assemblies with a compression stop. Establish the closer series and the mount together, since a parallel arm assembly will not serve a top jamb application.
7) My closer body is worn out too - do I buy the LCN 4020-3049 arm or a whole new closer?
The LCN 4020-3049 is a replacement part, the hold open arm alone, for an LCN 4020 Series closer that is otherwise sound. If the body itself is failing, a complete unit such as the Sargent 1431-CPS TB EN heavy duty surface door closer with parallel arm and compression stop arrives as a closer and arm together, Grade 1 heavy duty. Choose the arm when the body still controls the door, and the complete closer when it does not.
8) Is a hold open closer arm allowed on an accessible door in a commercial building?
The 4020-3049 arm is ADA compliant and rated for commercial use, so it can go on an accessible opening. Worth knowing for facility work: a mechanical hold open like this parks the door manually and is separate from any fire alarm release requirement, so on a rated opening confirm the door is not one that has to self-close under all conditions.
9) What finishes does the LCN 4020 hold open arm come in to match the closer already on my doors?
Thirteen finishes, each available in both hands: 616 satin bronze blackened, 632 bright brass, 633 satin brass, 639 satin bronze, 646 satin nickel, 651 bright chrome, 652 satin chrome, 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass. Match the BHMA number stamped on or specified for the existing closer cover, since 689 aluminum and 652 satin chrome look similar from across a lobby but do not match side by side.
10) Should I use a plain hold open arm or one with a dead stop built in?
A plain hold open arm parks the door but does not stop the swing, so the door can still be pushed past the hold point into a wall. If the opening needs the arm itself to stop the door, a dead stop or compression stop version is the better call: the Falcon SC60A-3049DS is a hold open dead stop parallel arm assembly for SC60A closers, and Sargent's 25-CPS gives you a compression stop without hold open for 351 and 281 closers. The LCN 4020-3049 is the straight adjustable hold open, so pair it with a separate floor or wall stop where the door can over swing.
11) What is the equivalent hold open arm for a Falcon closer?
Falcon parts follow their own series. The SC70A-3049/PA is the hold open arm with PA bracket for Falcon SC70A closers, and the SC60A-3049DS is the hold open dead stop version for SC60A closers. Even though the 3049 digits look like LCN's number, order by the closer series stamped on the body you are working on.
12) Does the LCN 4020-3049 come with the closer body or any mounting brackets?
It is the arm assembly on its own. The closer body, shoe screws into your frame, and any parallel arm bracket are separate. If your opening needs a bracket, note that some competing arms bundle one, for example Falcon's SC70A-3049/PA is sold as an arm with PA bracket; order the LCN bracket you need alongside this arm rather than assuming it is in the box.
13) Can I set the LCN 4020 hold open arm to catch at less than 140 degrees?
Yes. The elbow adjustment sets where the arm catches, so you can dial the hold point back for a door that would otherwise swing into a corridor, a fire extinguisher cabinet, or an adjacent leaf. 140 degrees is the maximum, not a fixed setting.
14) Can the Falcon 8230-3077PLCM arm be used in place of an LCN 4020-3049 hold open arm?
No. The Falcon 8230-3077PLCM is a standard arm with track for 8230 Series automatic door operators, so it serves a powered operator rather than a manual surface closer, and it is a standard arm rather than a hold open arm. The LCN 4020-3049 provides 140 degree adjustable hold open on LCN 4020 Series closers. The two solve different problems on different door assemblies.
15) For an ADA opening in a healthcare corridor, how does the LCN 4020-3049 compare with the Sargent hold open arms on grade?
The Sargent 25-H and 25-CPSH hold-open arms are Grade 1 heavy duty, as is the Sargent 1431-CPS TB EN heavy duty surface closer with parallel arm and compression stop. The LCN 4020-3049 hold open arm is specified for commercial use and ADA compliant operation. Where a facility standard calls out a Grade 1 assembly, the Sargent items carry that grade designation; where the existing hardware is LCN 4020 Series, the 4020-3049 is the arm that fits it.
16) The door is center hung on a floor pivot - is the LCN 4020-3049 the arm for it?
No. The Falcon OHC100A-DP is the center hung floor pivot with end load arm, made for OHC100 Series door closers, which is the configuration a center hung pivoted door uses. The LCN 4020-3049 is a surface closer arm with 5 3/4 inch maximum reveal, handed, for LCN 4020 Series closers. A center hung pivot opening needs the pivot and end load arm, not a surface hold open arm.
How fast can I get the LCN 4020-3049 RH 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 4020-3049 RH 689 come with a warranty?
Absolutely. The LCN 4020-3049 RH 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 4020-3049 RH 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 4020-3049 RH 689 from ZenSupply?
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