LCN 4631-POWDER Electrohydraul...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$8,337.00
$5,094.68
LCN LCN 4631 Pull Side Surface-Mounted Electrohydraulic Auto Equalizer, Power Operator - Powder Coat Finish LCN-4631-POWDER

LCN 4631-POWDER Electrohydraulic Auto Equalizer Power Operator with 120V Operation and ADA Compliance

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Model: 4631-689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$8,337.00
$5,094.68
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LCN 4631 Electrohydraulic Auto Equalizer Power Operator with 120V Operation and ADA Compliance

ADA-Compliant Low-Energy Automatic Door Operator

The LCN 4631 Auto Equalizer Power Operator delivers professional-grade accessibility enhancement for commercial door openings with 120V electrohydraulic operation and durable powder coat finish. This pull-side, top jamb mounted low-energy automatic door operator provides smooth powered opening assistance up to 90 degrees while maintaining standard door closer functionality during power loss. Engineered with cast iron body construction and 1-1/2" diameter piston for reliable performance in schools, healthcare facilities, office buildings, and retail environments.

Professional Features & Benefits

  • Door Width Compatibility: Supports interior doors up to 4'0" wide and exterior doors up to 3'0" wide for versatile commercial applications.
  • Heavy-Duty Construction: Cast iron body with 1-1/2" diameter piston and 3/4" diameter double heat treated pinion journal for long-term durability.
  • 120V Electrical Operation: Standard voltage requirement simplifies installation and integration with existing building electrical systems.
  • Dual Operation Capability: Functions as both a low-energy power operator and standard door closer, ensuring continuous operation even during power outages.
  • ADA Compliance Certification: ANSI A117.1 and ADA compliant in power mode with UL 325/228 listing for accessibility applications.
  • Comprehensive Adjustability: Field-adjustable settings include door opening speed, hold open time, opening force, electric strike delay time, safety scanner lockout time, and alternate action timeout.
  • Low-Energy Safety Design: Does not require guard rails or safety mats, reducing installation complexity and maintenance requirements.
  • Manufacturer Warranty: 2 Year warranty coverage for added confidence and protection.

Technical Specifications

  • ADA Compliant: Yes
  • BAA Qualified: Yes
  • Closer Size: 1
  • Closer Size: 3
  • Closer Size: 2
  • Closer Size: 4
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Opening Size: 180 Degrees
  • Electronic: Yes
  • Finish Type: Powder Coat
  • Fluid Type: All-Weather
  • Hold Open Feature: Yes
  • Mounting Detail: Surface - Top Jamb (Pull Side)
  • Mounting Location: Pull Side
  • Mounting Method: Surface Mount
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Model: 4631
  • Product Subgroup: Power Operators
  • Product Substrate: Iron
  • Product Type: Power Operators - Electrohydraulic
  • Product Voltage: 120V
  • Series: 4630 Series
  • Subcategory: Power Operators - Electrohydraulic
  • Warranty: 2 Year

Professional Applications

  • Educational Facilities and Schools
  • Healthcare Institutions and Medical Centers
  • Commercial Office Buildings
  • Retail Establishments and Shopping Centers
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities

Why Choose LCN Quality?

LCN 4631 Auto Equalizer Power Operators deliver professional-grade reliability with cast iron body construction and electrohydraulic control rated for demanding commercial applications. ANSI A117.1, UL 325/228, and ADA compliance certifications ensure code-compliant accessibility solutions with 2 Year warranty coverage. Engineered for high-traffic environments where dependable automated door operation and accessibility compliance are essential.

Product Specs

Series:
4630 Series
ADA Compliant:
Yes
BAA Qualified:
Yes
Mounting Detail:
Surface - Top Jamb (Pull Side)
Warranty:
2 Year
Closer Size:
1
Mounting Location:
Pull Side
Subcategory:
Power Operators - Electrohydraulic
Product Group:
Door Controls
Product Subgroup:
Power Operators
Product Type:
Power Operators - Electrohydraulic
Finish Type:
Powder Coat
Fluid Type:
All-Weather
Commercial/Residential:
Commercial
Electronic:
Yes
Closer Size:
2
Closer Size:
3
Closer Size:
4
Product Model:
4631
Product Voltage:
120V
Door Opening Size:
180 Degrees
Hold Open Feature:
Yes
Mounting Method:
Surface Mount
Product Category:
Door Controls
Product Substrate:
Iron
Department:
Door Hardware

LCN 4631-689 – Frequently Asked Questions

1) If the power goes out, does the LCN 4631 still close the door?
It does. The 4631 works as a standard door closer as well as a power operator, so with the circuit dead the door still closes under hydraulic control and users simply push it open by hand. That closing side is not a token spring: cast iron body, 1-1/2 inch diameter piston, 3/4 inch diameter double heat treated pinion journal, all weather fluid. On an opening that has to keep closing regardless of the electrical system, that dual function is the reason to choose an electrohydraulic operator.
2) Which side of the door does the LCN 4631 power operator mount on?
Pull side, top jamb, surface mounted to the frame face above the door. Pull side means the door swings toward the operator. If the only workable surface at your opening is the push side, or the door swings away from where the unit would sit, the 4631 mounting is wrong for it and you need a push side operator instead. Worth confirming on the drawing before the frame is prepped, because the mounting side is fixed on this model, not a suffix you select.
3) Does the LCN 4631 meet ADA requirements for an accessible entrance?
In power mode the 4631 is ANSI A117.1 and ADA compliant, and it is UL 325/228 listed. Opening force and door opening speed are both field adjustable, which is how the installer brings the opening within the accessible limits for that door once it is hung. Powered opening assist runs up to 90 degrees.
4) What is the CS option on the LCN 4631, and which version should I order?
Two switch configurations, and it is the only real decision on the order besides finish. The default unit has a visible on/off switch plus a hold open switch, so staff can kill powered operation or hold the door open right at the operator. CS gives you a concealed on/off switch and no hold open switch, which keeps the public from switching the operator off or propping the opening. Schools, retail, and any door where you do not want the setting touched usually go CS; a back of house or staff controlled door is where the visible switches earn their keep. Both configurations are offered in all six finishes.
5) Should I use a low energy operator like the LCN 4631 or a full energy automatic door operator?
Low energy covers most accessible openings and installs far lighter. The 4631 does not require guard rails or safety mats, so there is no guarding package to buy, no floor space given up, and nothing extra to maintain. A full energy automatic opens faster and with more force, and that speed is exactly why it brings the sensor and guarding requirements with it. If the goal is an accessible entrance that someone activates and that still closes as a normal closer when the power drops, the 4631 is the type to spec. If you need the door to swing open on approach at full speed, that is full energy territory and a different product.
6) Can the LCN 4631 be tied into a card reader and an electric strike?
Yes. Electric strike delay time is one of the 4631's field adjustable settings, so the operator can be timed to release the strike before it starts pushing the door rather than driving against a latched leaf. The other adjustments on the unit are door opening speed, hold open time, opening force, safety scanner lockout time, and alternate action timeout. The strike, reader, and power supply are separate items to order with it.
7) Do I have to order a specific closer size with the LCN 4631, or does one unit cover a range of doors?
One unit covers closer sizes 1 through 4, so the same 4631 spans a light interior door through a heavier one within its width limits. There is no size to choose on the order. Switch configuration (default or CS) and finish are the only two selections, which keeps things simple when you are buying several for a building and want them all identical.
8) Is the LCN 4631 acceptable on a federally funded project with Buy American requirements?
The 4631 is BAA qualified, which is the box a federal or federally funded job needs checked on door hardware submittals. Pair that with ANSI A117.1 and ADA compliance in power mode and UL 325/228 listing and the accessibility and procurement lines on the submittal are covered by one product.
9) Will an LCN 4631 hold up on an exterior door through a cold winter?
Exterior is fine up to a 3'0" wide door, and the operator uses all weather fluid, so closing speed stays put through the temperature swing instead of slowing down in cold and racing in heat the way a plain hydraulic fluid does. The powder coat finish and cast iron body are what handle the exposure on the outside of the opening.
10) We have dark bronze hardware throughout the building. Does the LCN 4631 come in a matching finish?
695 dark bronze is one of six. The full set is 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze, and 696 brass, all powder coat rather than plated. Three of those are bronzes, so matching an existing bronze fleet across a set of openings is a matter of confirming which bronze is already up there.
How fast can I get the LCN 4631-689 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 4631-689 come with a warranty?
Absolutely. The LCN 4631-689 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 4631-689?
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 4631-689 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.

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