LiftMaster LA400PKGUL Dual Swing Gate Operator Kit

Dual-Leaf Residential Swing Gate Automation with Battery Backup

The LiftMaster LA400PKGUL Dual Swing Gate Operator is a 24 VDC linear actuator system for automating two vehicular swing gate leaves. This dual configuration combines the LA400PKGUL primary operator package with an LA400DCS secondary actuator, allowing both gate leaves to operate from the same control system.

Gate capacity depends on the length of each leaf. The LA400 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. Electronic limits, automatic force learning, inherent obstruction sensing, programmable bi-part delay, and synchronized closing provide coordinated control for residential and other compatible vehicular gate applications.

The standard control system includes battery backup, a Security+ 2.0 radio receiver, diagnostic display, and solar capability. An LMRRUL monitored retro-reflective photoeye is included with the primary LA400PKGUL package. Additional monitored entrapment protection may be required based on the layout and entrapment zones of the installation.

Key Features

• Dual swing gate system with primary and secondary LA400 actuator arms
• Supports gate leaves up to 16 ft, with weight capacity based on gate length
• 24 VDC linear actuators with precision-machined all-metal gear drive
• Rated for up to 100 cycles per day
• Approximately 15-18 second travel time for 90° operation
• Electronic open and close limit programming
• Automatic force learning with adjustable reversal force
• Built-in obstruction sensing reverses the gate when resistance is detected
• Programmable bi-part delay helps sequence overlapping gate leaves
• Synchronized close capability for coordinated dual-gate operation
• Battery backup maintains gate operation during AC power loss
• Solar-ready for installations using compatible LiftMaster solar equipment
• Security+ 2.0 onboard receiver supports up to 50 compatible remote controls
• LED diagnostic display assists with setup and troubleshooting
• myQ compatible when paired with appropriate LiftMaster connectivity equipment
• Optional expansion board adds loop detector inputs, auxiliary relays, additional safety inputs, quick close, and anti-tailgate functions

Technical Specifications

• Manufacturer: LiftMaster
• Series: LA400UL
• Primary Package: LA400PKGUL
• Secondary Operator: LA400DCS
• Product Type: Dual linear swing gate operator system
• Gate Configuration: Dual swing / bi-parting vehicular gate
• System Operating Voltage: 24 VDC
• Motor Type: DC motor with soft start and soft stop
• Operator Duty Rating: Up to 100 cycles per day
• Gate Capacity at 10 ft: Up to 850 lb per leaf
• Gate Capacity at 12 ft: Up to 750 lb per leaf
• Gate Capacity at 14 ft: Up to 650 lb per leaf
• Gate Capacity at 16 ft: Up to 550 lb per leaf
• 90° Travel Time: Approximately 15-18 seconds
• Accessory Power: 24 VDC, 500 mA maximum
• Battery Backup: Two 7Ah batteries supplied with the standard control box
• Solar Capability: Yes, with compatible LiftMaster solar equipment
• Entrapment Protection Inputs: Up to 3 on the main control board
• Additional Safety Inputs: Available with optional expansion board
• Radio System: Security+ 2.0
• Remote Capacity: Up to 50 compatible remotes or KPW250 keypads
• Operating Temperature: -4°F to 140°F (-20°C to 60°C)
• Control Features: Timer-to-Close, bi-part delay, synchronized close, diagnostic display, electronic limits, and adjustable reversal force
• Warranty: 2 years
• UL Compliance: UL 325 listed for vehicular swing gate applications

What Comes with This Dual Kit

• 1 LiftMaster LA400DC primary actuator arm
• 1 LiftMaster LA400DCS secondary actuator arm
• 1 LiftMaster standard control box with control board
• 2 7Ah backup batteries
• 1 LMRRUL monitored retro-reflective photoeye
• Primary and secondary operator mounting and connection hardware

Remote controls are not included. Additional monitored photoeyes or sensing edges may be required depending on the entrapment zones created by the gate installation.

Dual Gate Installation

The LA400DCS secondary actuator is wired back to the primary LA400 control box, allowing both gate leaves to be managed from one controller. The control board provides separate Gate 1 and Gate 2 connections and allows the limits and force settings of each actuator to be programmed individually.

For gates with a decorative overlap or locking arrangement, the bi-part delay can sequence the leaves so the appropriate gate opens first and closes last. The system can also be configured for synchronized closing when both leaves should reach the closed position together.

Conclusion

The LiftMaster LA400PKGUL dual configuration is designed for properties that need coordinated automation of two residential-style swing gate leaves with battery backup, programmable gate sequencing, monitored safety integration, and optional solar operation. Because gate capacity decreases as leaf length increases, verify the weight and length of each individual gate leaf against LiftMaster's published capacity chart before selecting the LA400 for the installation.