LiftMaster Medium Duty Jackshaft Operator MJ5011U, 1/2 HP, 115V 1PH w/CPS-UN4 Kit

$1,172.56 each

Product Description

IMPORTANT NOTE: Due to the impact of COVID 19 on LiftMaster Manufacturing, shipping times may be delayed. Please contact us for estimated shipping times.
LiftMaster Medium Duty Jackshaft Operator MJ door operator is designed for use on vertical lift sectional doors or small rolling doors and grilles. Maximum recommended duty cycle: 12 cycles per hour.

  • Universal Install
  • 1/2 HP 115V Single Phase
  • CPS-UN4 Commercial Photo Cell System
  • For openings up to 45'W (indoor/outdoor use)
  • 3 button station, open/close/stop
  • 1" bore, 32 tooth sprocket for #41 chain
  • UL-325 Compliant, Logic 4 & 5
  • Built in 315 MHz receiver
  • Includes: emitter, receiver, floor/wall mounting brackets
  • Watertight - NEMA4
  • Pre molded for 1/2" conduit
  • 24VAC
  • 2 year warranty

  • Note: Over the Road freight charges apply.
    IMPORTANT: Due to supply chain shortages we currently do not offer quantity discounts, and for some of our products we are limiting the quantities that may be purchased.

Quantity Discounts

2+: $1,172.56 each
4+: $1,172.56 each
8+: $1,172.56 each


We are either "OUT OF" this part because it is currently unavailable, or the part is "NLA" - No Longer Available. Please contact us regarding future availability or possible substitutes for items that are no longer available.

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Huge inventory of parts and torsion springs for same or next day shipping! Here you will find all you need in the most common sizes of 1 3/4," 2," 2 1/4," and 2 5/8" inside diameter springs. Please contact us for specialty springs such as TorqueMaster, EZ Set, self-Storage, and steel rolling door springs as many of these have been subject to supply chain shortages. Larger 3 3/4" commercial and industrial springs may require an week to ship; other springs may require three to four weeks to process.

COVID update. No mask, no service! When picking up parts please wear a mask. We'll gladly provide one. Please honor the six foot social distancing rule. Thank you for your patience and understanding.

Shipping times and costs have changed. Normal transit times are currently not guaranteed, even on next day and second day shipments. Shipping prices on items over eight feet have more than tripled.