LiftMaster Opener MJ

Call 901-521-6875 for pricing, availability, and install in the Mid-South.

Overview

Medium-Duty Logic jackshaft (MJ). Compact side-mount with a floor-level disconnect, solenoid brake, and 1/2 HP 115V motor. Not a hoist (MH / MHS) and not industrial Logic 5.0 J.

Pick this when…

• You need a medium-duty jackshaft — not MH (hoist) and not Logic 5.0 J.
• 1/2 HP, 115V single-phase is the motor on this page’s factory copy.
• See the family comparison chart.

At a glance

• Motor: 1/2 HP · 115V single-phase · instant reverse · thermal overload
• Disconnect: floor-level (no hoist chain)
• Brake: solenoid, standard
• Drive: 4L V-belt first stage · #48 chain
• Warranty: 2 years

Medium-Duty Logic

• UL 325-2010 Medium-Duty Logic board.
• Built-in 315 MHz receiver — up to 20 Security+ remotes or unlimited DIP-switch remotes.
• Factory C2 wiring; B2 needs CPS-U / CPS-UN4 / CPS-EI.
• Timer-to-close 5–60 seconds (5-second steps) when a monitored device is present.
• 90-second maximum run timer.
• 3-button OPEN/CLOSE/STOP station included.

Specs