The LA400 has a powerful 24VDC motor, which provides exceptional starting torque and features soft start/stop operation. This promotes longer gate and operator life, as well as dependable performance. The LA400 is capable of operating gates up to 16 feet long and weighing up to 550 pounds. RECOMMENDED CAPACITIES: up to 550 lbs, or up to 16ft.
1 - Liftmaster LA400DCS arm
1 - 40 feet of secondary arm cable
J. Jerry 15-02-2023 Hello there, and thank you for reaching out to us. The arm itself, end to end, is 37.38". It'll open up to a 90 degree opening.
P. C. peter c. 29-11-2022 Thank you for reaching out. The secondary unit (DCS) comes with a master/secondary cable to connect the farthest arm to the control board. Each arm comes with a short cable but when you have 2 arms, one arm will be situated farther from the control box, which means you have to extend the wire, hence the included long cable for the secondary arm. Liftmaster has a youtube channel you can look through but they don't feature the LA400 rather the LA500 model which works the same as far as wiring goes
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