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The LiftMaster/Chamberlain LA400UL dual gate opener is a residential and light commercial linear actuator.
- Gate Materials: Wood, Steel, Aluminum, Vinyl, Chain Link, and others
- Weight and length: Up to 16' in length or 850 lbs. per leaf
- Operating Temperature: -4°F (-20°C) to 140°F (60°C)
- Max degree of opening: 100°
- Gate Post or Column size (pull to open): Max 7" x 7" post or gate
mounted 4" from the rear face of a column.
- Push to Open: Yes - setback above does not apply (not included)
- Solar Compatible: Yes
- Power: 120V Single Phase (standard control box)
- Power Wire Specification: (reference image)
- Warranty: 2 year manufacturer control board, 2 year
component manufacturer warranty | 
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LiftMaster recommends professional installation and provides direct support to its recognized dealer network. When customers purchase LiftMaster products through Gate Crafters, they receive seven-day installation, technical, and warranty support from us. We also assist with advanced support and warranty replacement directly with LiftMaster. Gate Crafters offers more expert assistance than anyone.
If you need help deciding if this gate opener has the abilities that are right for your gate we have live application specialists available 9am - 9 pm EST 7 days a week or try our exclusive gate opener recommendation tool 24 hours/day.
LiftMaster LA400UL Dual Swing Gate Opener Most people don't even realize the brand of their garage door opener because they've never had a problem that required contacting the manufacturer. This kind of reliability is now delivered with the LA400 gate opener. The LiftMaster/Chamberlain LA400 Dual Opener is a low-voltage system, eliminating the need to run expensive 110-volt AC power wire to your gate. Simply run 16-gauge low-voltage 2-conductor wire to a household outlet within 1,000 feet of the operator. With the LiftMaster/Chamberlain LA400's oversized control box, you can house two batteries to accommodate higher opening cycle situations and provide extra storage for a power outage. Furthermore, the LA400 meets the high safety standards of UL 325, making it a reliable and safe gate-opening device. LiftMaster has added an extra level of convenience with the integration of MyQ technology. By simply downloading the MyQ application to your smartphone and connecting the LiftMaster 828LM Internet Gateway (not included), you will be able to control your driveway gate openers and other LiftMaster automated doors and gates. The MyQ smartphone application is compatible with all of LiftMaster's line of MyQ-enabled devices.
Gate Opener Dual Options The LiftMaster LA400 with the use of the built-in network communication system 2 single LA400 gate openers can communicate and operate as a dual gate opener system. If you need a dual gate opener system, but are unable to run low voltage wire underneath your driveway, you can simply order two single gate opener systems. This will allow you to have a wireless dual gate opener system.
Gate Crafters has the resources you need.
How do you use your gate opener system once you get it? Gate Crafters is the only retailer to give a real answer to this question. We have develop videos for installing many of our gate openers and products and write DIY focused manuals for most gate openers and have individual instructions for each accessory to be installed with each gate opener.
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- Large 24V Motor - It is one of the largest swing gate motors available for any residential estate gate opener. It is capable of handling driveway security gates up to 850 lbs., which is more than many heavily ornamented electric gates weigh.
- Control Board, Easy Read Diagnostics - The LED light diagnostic on the control board permits easy diagnostics of problems or missing connections. This allows efficient repair and swift continuation of normal electric gate operation.
- Soft Start/Soft Stop - Soft start/soft stop is a feature in which the control board, during the set up process, learns where the opening and closing points are for the swing of the gate. Then during normal operation the gate operator automatically slows the motion of the gate to smoothly meet with the gates destination point. This reduces stress on the gate and operator for extended functionality.
- Bi-Part Latch - Designed to allow one gate leaf to begin opening or closing independently for those gates that have overlapping leaves.
- Adjustable Closing Timer - Set your gate to close between 0 and 120 seconds after reaching the full open position.
- Electronic Limit Switches - Set the limit switches with just the push of a button for accurate, easy setup.
- On Board Radio Receivers - It is compatible with a number of wireless remotes and allows operation of a number of devices with one remote - such as the garage door and the gate opener.
- Input Terminals - For convenient addition of accessories requiring like loops, sensing devices and controlling devices.
- Quick, Safe and Secure Manual Release - The LA400 operator comes with a manual release key that can be used should the power fail and the backup battery is not charged. This ensures that the driveway gate can be opened without damaging or disconnecting any components.
- Highest Level of Safety - This operator is designed with separate force adjustments for obstructions. If the gate meets an obstruction while it is opening it will reverse to close, and if it is closing it will reverse to open. Additionally, the LA400 is UL 325 Listed.
- Increased Convenience - The built in MyQ system will allow you to open your gate right from your smartphone.
- Solar-Ready Ultra-Reliable System - Simple solar conversion delivers power when you need it most and is extremely power efficient at all other times to maximize solar performance.
- Wireless Dual-Gate Communication - Eliminates expensive conduit costs and unsightly driveway scars.
- Programmable Auxiliary Relays - Easily add additional features, such as warning lights/alarms.
- Anti-Tailgate - Prevents unauthorized access. Gate will pause when closing as vehicle pulls onto interrupt loop or breaks photo beam. Once vehicle backs up, gate will continue to close.
- Homelink® Compatible - Version 4 and higher.
- Commercial Duty Cast Aluminum Housing with Heavy Duty DC Motor - Powerful enough to perform in the most demanding applications
- Keyed Manual Disconnect - When unlocked, allows gate to be operated manually.
- Inherent Reversing Sensor - Detects obstructions or increased loads. Reverses gate when closing or stops/reverses the gate when opening.
- Fire Department Compliance - Allows gate to auto open upon loss of AC power or battery depletion
- Surge Suppression - Provides industrial surge and lightning protection against strikes up to 50 feet away.
- Party Pass - Allows for the gates to be held open for an extended period of time, ideal for parties.
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- LA400DC Gate Operator (with 6 ft. cable attached)
- LA400DCS Gate Operator (with 40 ft. cable)
- Standard Control Box
- (2) Batteries
- Control Board
| - (2) Free LiftMaster Remotes
- Photo Eye
- Plug-in Transformer
- Pull-to-Open Bracket
- Gate Bracket
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- Post Bracket
- Junction Box
- Hardware
- Instruction Manual
- (2) Warning Signs
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 For over a decade, Gate Crafters has been the premier online retailer of gate openers and gate opener accessories. Due to our extensive technical and installation knowledge, we are authorized to sell to the DIY market. If you purchase an LA400 or LA12 gate opener system from Gate Crafters and install it yourself, your warranty eligibility will be recognized by LiftMaster and supported by Gate Crafters. You can access our trained technical staff seven days a week from 9 AM to 9 PM EST. The LA400 and LA12 can be installed with simple household tools and do not require any specialized equipment. The wiring required for installation is simple and straightforward, as it involves only low-voltage wiring. When you install your gate opener system yourself, you will save thousands of dollars over the life of your gate opener. You will also gain a working knowledge of your gate opener installation and how the system operates. This will make it easier for you to troubleshoot any issues and perform routine maintenance, if needed, in the future.
Gate Crafters is the DIY factor.
Gate Crafters further adds to most of our gate openers for easier DIY installation. We have developed exclusive components (example: easy adjustable mounting brackets), customized instructions, and offer a full spectrum of accessories to truly cover all aspects of the installation of your gate opener. In addition we have the largest staff of factory trained technicians in the US.
- Order specific customized accessory wiring instructions
- 360 degree accessories - we can take you through exit, entry, safety, power, and all other minute details to create a fully rounded kit.
- Free 24/7/365 Installation Support
- Free 7 day/week Technical Support
- Largest Number of Certified Techs in America
- Free assistance to find the right gate opener for your gate
- Free systems design assistance to match the right accessories to fit your needs.
- Extremely competitive pricing
- Free shipping on all accessories purchased with a gate opener
- We stock replacement parts
- Many brands of many types of accessories, enough to handle just about any operational situation you can imagine
Gate Crafters has actual experience.
We have a testing area, we have factory and internal training courses, we build gates and have our own gates that are automated, we attended all industry trade shows in multiple countries and are a member of the AFA, and we pay visits to our chosen manufacturers' factories. All these factors are what have lead to us having so many exclusive additions. When you see and actually use as many products as we have you tend to have many ideas for minor changes that have major impacts. We acted on these ideas and have utilized them to help thousands of customers automate their gates.
The following tools and supplies are suggested in the manufacturer manual for optimal installation. They are not provided by Gate Crafters, however, most tools are available at local hardware stores for purchase or rental. Please refer to the Installation Manual for Tools Needed. Depending on the type of gate, power supply and contributing environmental factors additional tools or supplies may be needed. Please review the product manual associated with this gate opener model for further details. |
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Words from Senior Application Engineer Anthony Geato | Top of Page |
“The LiftMaster LA400 and LA400 Dual plug in gate openers are rated by Gate Crafters for gates between the lengths of 10 and 14 feet. This kit includes your choice of control box enclosure as well as your choice of transmitter. The arm on the LiftMaster LA400 features a lockable release that allows you to unlock the arm and manual operate your gate. The motor on the LA400 is approximately 2 and 1/4 inches in diameter and about 4 inches in length. The worm drive transmission on the LA400 features gears that are made of stainless steel and brass. This transmission spins a shaft that controls both the limit switches and screw drive. The shaft that spins the screw drive rides on sealed ball bearings. This gate opener has 3 limit switches. Two of the limit switches tells the control board when the arm is either in the open or closed position and the 3rd limit switch tells the gate opener when the gate is unlocked. One downside of this type of limit switch, is that they are prone to contamination. At some point in time, these limit switches may need to be replaced due to dirt getting inside of them. The LiftMaster LA400 is available with your choice of control board enclosures. The larger control board enclosure can house a larger battery and is easier to wire. The larger control board enclosure can hold two 12 amp hour batteries, which you provide. The standard control board enclosure comes complete with 2 7 amp hour batteries. Each enclosure comes with the same control board, that has all the necessary plugins for the accessories you wish to use. This control board is compatible with various accessories such as: exit loops, locks, entry devices, safety devices, exit wands, and edge devices. Gate Crafters gives you the option to choose the transmitter that you want. When you order your LiftMaster LA400 from Gate Crafters, you have the option of choosing either LiftMaster transmitters or Estate Swing transmitters. When you choose the Estate Swing transmitters you will be able to easily add on other great inexpensive Estate Swing accessories such as wireless key pads. Also the Estate Swing transmitters are less expensive than the LiftMaster transmitters. We have also successfully tested the Estate Swing transmitters up to 1400 feet away from the receiver.
I started Gate Crafters in 2002 with the goal to provide my customers with high quality gate opener and gate opener accessories. Gate Crafters has technical support 7 days a week from 9 am to 9 pm, eastern time. When you are buying your gate opener, our experts can help you put together a complete package so your gate operates the way you want it to. So please give us a call, send us a email, or use our live chat and we are more than welcome to help you out. We look forward to hearing from you." |
Loyal Customer Eric S. from Crimmins Construction I bought the opener to install on my one of my costumer's gates that we built for their home. I was a little paranoid when she and her 2 year old son came out and watched the whole setup process. But, to my surprise, this was the first opener I have installed and it took no time at all to get it fully operational. The manual was very easy and it just took a few steps to set it up. It is working great now. Thanks, LiftMaster and the people at Gate Crafters. You made my life easy with the ease of ordering and install.
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Manual: LA400UL Generation 3 Installation Manual (Newer Manual)
Manual: LA400 Dual Generation 2 Manual (Older Manual)
QB ID: LA400-Dual
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