Replacement Arm for Your LiftMaster LA400 Gate System The LiftMaster LA400DC 24VDC Primary Actuator Arm is the perfect solution for replacing a malfunctioning or worn-out primary actuator in your LiftMaster LA400 swing gate operator system. This arm provides a seamless plug-and-play installation, requiring no additional mounting hardware, making it ideal for both DIY enthusiasts and professional installers. The arm's durability and compatibility ensure that your gate system remains reliable and fully operational. Key Features Direct Replacement: Tailor-made for the LiftMaster LA400 single gate system, this primary actuator arm ensures a perfect, plug-and-play fit. Plug-and-Play Wiring: Pre-attached cord simplifies connection to your control board, following the same configuration as the original arm. Durable, Weather-Resistant: Engineered with high-quality materials, this actuator arm withstands harsh weather conditions for long-lasting performance. Solar-Compatible: Supports solar-powered systems, making it an eco-friendly choice. myQ-Enabled: Integrates with myQ technology (when paired with a controller) to allow for remote gate control via smartphone, enhancing security and convenience. Battery Backup Capabilities: Operates for up to 400 cycles or 97 days on standby power, ensuring continued functionality during power outages. Easy Installation: Reuse existing bolts and brackets - simply connect the cord to the control board for fast, hassle-free installation. Technical Specifications Power: 24 VDC motor Weight Capacity: Supports gates up to 850 lbs. Gate Length: Suitable for gates up to 16 ft. Operation Speed: Opens gate 90 degrees in approximately 17 seconds. Temperature Rating: Operates in temperatures ranging from -4°F to 140°F (-20°C to 60°C). Frequently Asked Questions Is the LA400DC Primary Arm compatible with the LA400DCS system?Yes, the LA400DC Primary Arm is designed as a replacement for the primary arm in the LA400 system. For dual-gate setups, you will need the LA400DCS Secondary Arm. Does the LA400DC come with a control panel or other accessories?No, this listing is for the primary arm only. The control panel and other accessories are sold separately. Can I install the LA400DC myself, or do I need professional help?This unit is designed for easy DIY installation. Simply unbolt the old unit, bolt the new unit to the existing bracket, wire it into the control board and reprogram the open/close limits. Is the LA400DC solar-compatible?Yes, the LA400DC Primary Arm is solar-compatible, making it ideal for energy-efficient, solar-powered gate setups. What is the maximum gate size and weight the LA400DC can handle?This arm is rated for gates up to 16 feet in length and 850 lbs in weight, ensuring it can handle most residential gates. Conclusion Selecting the LiftMaster LA400DC guarantees a high-quality replacement that fits perfectly within your existing setup. Whether you're replacing a malfunctioning arm or upgrading, this actuator arm provides trusted performance and reliability. It integrates smoothly with myQ technology and offers the added benefit of solar compatibility, giving you both modern functionality and eco-friendly energy solutions. Download Specs Download Manual
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