LiftMaster LA400XL20W Dual Solar Gate Operator Kit

Off-Grid Dual Swing Gate Automation with High-Capacity Battery Storage

The LiftMaster LA400XL20W Dual Gate Operator Solar Package is an off-grid automation system for residential bi-parting swing gates where bringing AC power to the entrance is difficult or impractical. The package combines a primary LA400DC actuator and secondary LA400DCS actuator with a 20W solar charging system and two high-capacity 33Ah batteries.

Each LA400 actuator supports up to 850 lb at 10 ft, 750 lb at 12 ft, 650 lb at 14 ft, or 550 lb at 16 ft per gate leaf. The 24 VDC linear actuators provide soft start and soft stop, electronic limits, inherent obstruction sensing, and approximately 15-18 second travel for a 90-degree opening.

For the standard dual installation, the secondary actuator connects to the primary control system through the included junction box and extension cable. Both gate leaves are controlled from the same board, with individual limit programming and Bi-Part Delay for gates that need one leaf to open first and close last.

The solar system uses two 10W panels wired for 24V charging and two 12V 33Ah batteries housed in LiftMaster's large metal solar control box. The LA400 also supports myQ technology for remote gate monitoring and control when paired with compatible LiftMaster connectivity equipment.

Key Features

• Dual solar swing gate system for off-grid residential entrances
• Includes primary LA400DC and secondary LA400DCS actuator arms
• Handles up to 850 lb at 10 ft per gate leaf
• Supports gate leaves up to 16 ft at the corresponding weight rating
• 24 VDC linear actuators with soft start and soft stop
• Approximately 15-18 second travel time for a 90° opening
• Electronic open and close limits programmed for each gate leaf
• Bi-Part Delay coordinates gates that require sequential opening and closing
• Wired secondary-gate connection operates both actuators from one control system
• Includes two 10W solar panels for 20W solar charging
• Includes two 12V 33Ah batteries for extended energy storage
• Large metal solar control enclosure designed for 33Ah batteries
• Solar capacity can be expanded up to 60W with compatible LiftMaster equipment
• Built-in obstruction sensing with adjustable reversal force
• LMRRUL monitored retro-reflective photoeye included
• myQ compatible for remote monitoring and gate control
• Security+ 2.0 onboard radio receiver supports compatible LiftMaster remote controls
• Optional expansion board adds additional safety inputs, loop detector support, auxiliary relays, Quick Close, and Anti-Tailgate functions
• Keyed manual release on each actuator
• UL listed for Class I, II, and III vehicular swing gate applications

Technical Specifications

• Manufacturer: LiftMaster
• Kit Model: LA400XL20W-D
• Operator Series: LA400UL
• Primary Actuator: LA400DC
• Secondary Actuator: LA400DCS
• Product Type: Dual solar swing gate operator package
• Gate Configuration: Dual swing / bi-parting vehicular gate
• Number of Actuators: 2
• System Operating Voltage: 24 VDC battery run / solar charge
• Maximum Gate Capacity at 10 ft: 850 lb per leaf
• Maximum Gate Capacity at 12 ft: 750 lb per leaf
• Maximum Gate Capacity at 14 ft: 650 lb per leaf
• Maximum Gate Capacity at 16 ft: 550 lb per leaf
• 90° Travel Time: Approximately 15-18 seconds
• Maximum Travel Range: 115°
• Maximum Operator Cycle Rating: Up to 100 cycles per day
• Maximum Duty Cycle: 4 minutes on
• Operating Temperature: -4°F to 140°F (-20°C to 60°C)
• Solar System Voltage: 24 VDC
• Included Solar Capacity: 20W total using 2 x 10W 12V panels wired in series
• Maximum Supported Solar Input: 60W
• Included Batteries: 2 x 12V 33Ah
• Solar Control Box: XLSOLARCONTUL large metal solar enclosure
• Battery Tray: Required 33Ah battery tray included
• Solar Battery Harness: Included
• Accessory Power: 24 VDC, 500 mA maximum
• Dual Gate Connection: Wired through secondary junction box and extension cable
• Gate Sequencing: Bi-Part Delay
• Limit Setting: Electronic, independently programmed for each gate leaf
• Radio System: Security+ 2.0
• Remote Capacity: Up to 50 compatible remote controls
• myQ Connectivity: Supported with compatible LiftMaster connectivity equipment
• Main Board Safety Inputs: Up to 3 monitored entrapment protection inputs
• Expansion Board: Optional, not included with the solar control box
• Obstruction Protection: Inherent reversing sensor plus monitored external entrapment protection
• Included Entrapment Protection: LMRRUL monitored retro-reflective photoeye
• Photoeye Heater: Not recommended for solar installations
• Manual Operation: Keyed manual release
• UL Usage Classification: Class I, II, and III
• Warranty: 2 years
• Remote Controls: Not included

What Comes with This Dual Solar Package

• 1 LiftMaster LA400DC primary actuator arm with mounting brackets
• 1 LiftMaster LA400DCS secondary actuator arm with mounting brackets
• 1 XLSOLARCONTUL large metal solar control box
• 2 12V 33Ah batteries
• 1 33Ah battery tray
• 1 solar battery harness
• 2 10W 12V solar panels
• 1 LMRRUL monitored retro-reflective photoeye
• 1 secondary junction box and terminal block
• 1 secondary actuator extension cable and connection hardware
• Keys, warning signs, mounting hardware, and documentation

Conclusion

The LiftMaster LA400XL20W Dual Solar Package provides a complete starting configuration for automating two swing gate leaves without extending AC power to the entrance. Its 20W solar array, two 33Ah batteries, dual LA400 actuators, and wired dual-gate control make it particularly useful for remote residential driveways and other off-grid vehicular entrances.

Solar performance should be evaluated for the actual site. Dual gates consume more energy than a single gate, and available cycles depend on sunlight, geographic location, battery condition, accessory load, gate size, and daily traffic. Additional solar capacity may be required for higher-use installations or sites with limited sun exposure.

Gate capacity should also be evaluated per leaf using both length and weight. The 850 lb rating applies to a 10 ft leaf, while a 16 ft leaf is rated up to 550 lb.