Liftmaster LA400 Single Arm Swing Gate Opener Package - LA400PKGUL

Use this single-arm swing gate opener package to smoothly open and close your residential gate. A retro-reflective photo eye and control box ensure you have everything you need to install your linear actuator immediately.
Part Number: LA400PKGUL
$1,234.67 each
$1,234.67 each


Liftmaster LA400 Single Arm Swing Gate Opener Package - LA400PKGUL

This single-arm swing gate opener package with photo eye is a residential linear actuator with all the features you’ll need to operate a swing gate successfully. This package includes two 7AH batteries, a standard control box, a retro-reflective photo eye, and the LA400DC primary actuator arm. This swing gate package is made for heavy-duty gates up to 850 pounds or 16 feet long. This package is also UL-compliant once used with monitored safety entrapment protection devices.

The handy LED diagnostic display allows you to resolve issues and assist with troubleshooting quickly. A new party pass feature also lets you hold your gate open for an extended period when having guests in your home. This unit complies with fire department standards, and the gate will auto-open when AC power or battery depletion occurs. With an inherent reversing sensor, a gate will reverse when an obstruction is detected, allowing pets and kids to stay safe during gate operation.


  • Power: 120V Single Phase (Standard Control Box)
  • Functions In -4°F to 140°F Temperatures
  • UL Classifications: I, II, III, and IV
  • 90-Degree Opening In Only 15 to 17 Seconds
  • Accessory Power: 24VDC 500mA Output in Switched And Unswitched Power
  • Height: 6.06” And Width: 37.96”
  • Rated For Gates Up To 16 Ft. In Length And 850 Lbs.
LA400UL Capacity Chart

Key Features:

  • Homelink Compatible
  • Anti-Tailgate And Quick Close Technology
  • Operate Gates Manually With Keyed Manual Disconnect
  • Easily Program Auxiliary Relays And Add Features Like Warning Lights Or Alarms
  • Adjust Speed Of Gate Closing With Bi-Part Delays
  • Use MyQ App On Phone To Control Gate Operation

To Convert into a Solar Unit

The 40W33A, which includes (2) SP20W12V solar panels with mounting hardware, (2) K94-37236 solar adapter harness kits, and (2) A12330SGLPK 33Ah batteries.

You may also need (2) K10-36183 battery trays and a LA500CONTXLMUL Solar Control Box.

Product Drawing

Owners Install Manual

Start Guide

Name Liftmaster LA400 Single Arm Swing Gate Opener Package - LA400PKGUL
Alternate Part Number LA400PKGULMC
Max Gate Length 16 ft.
Max Gate Weight 850 lbs.
Solar Compatible Yes
Cycle Speed 15 - 17 sec.
Operator Duty Rating 100 Cycles/Day
Compatible Remotes 50 Remotes
Motor 24VDC Motor
Input Voltage 110/115/120 AC (60 Hz, 1 Phase), 220/230/240 AC (60 Hz, 1 Phase)
Code Type Compatibility Security+ 2.0
UL Usage Classification I, II, III, IV
Manufacturer LiftMaster
MyQ Compatibility Yes
Price $1,234.67