LiftMaster MT


The Model MT is a Medium-Duty Logic trolley door opener, as manufactured by The Chamberlain Group, Inc. and is for use on standard lift sectional doors. It is rated for 12 cycles per hour during peak periods.

  • Trolley Type Door Opener
  • Voltage/phase : 115 V/1 ph
    •   24V NEC Class 2
    • Horse power : ½ h.p.


  • Additional headroom required: “4”
  • Required depth: door height + 48″
  • Built-in 3-channel, 315MHz radio receiver accepts up to 20 Chamberlain® Security+® or unlimited DIP switch remotes. 3-button remotes can be programmed for OPEN/CLOSE/STOP operation.
  • Integrated Timer-to-Close (TTC) allows programming from 5 to 60 seconds in 5-second increments. Allows for timed automatic door closure after the door reaches the full open position (Requires monitored safety devices, with CPS-U, CPS-UN4, or CPS-EI).
  • Integrated 90-second maximum run timer
  • UL325-2010 Monitored Entrapment Capability
  • Monitored protection against transient overvoltage conditions
  • 3-button control station included
  • High-starting torque door opener with instant reverse.
  • Solid-state Medium-Duty Logic circuit board.
  • Capacitor start on single-phase.
  • Motor is removable without affecting limit switch settings.
  • All operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close. Monitored entrapment protection, using approved photo sensors CPS-U are standard. All other wiring types, B2, T, TS and FSTS, can be selected with the selection of a switch. LiftMaster CPS-UN4 and CPS-RPEN4 photo sensors or a monitored 4-wire sensing edge (via a CPS-EI Edge Interface Card) are optional. Logic 4.0 door openers can only accept UL-approved LiftMaster CPS-U, CPS-UN4, CPS-RPEN4 or CPS-EI monitored entrapment protection devices.
  • Spring-loaded disconnect for emergency manual operation.
  • First-stage heavy-duty 4L V-Belt; second and third stages #48 chain.
  • Heavy-duty oil-filled bushings.
    • Adjustable friction clutch helps protect against damage to the door and opener should the door meet an obstruction.
    • Floor level disconnect provides emergency manual operation.
  • Motor overload protection.
  • NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with baked-on powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • High strength dual L-rail track with exclusive nylon quiet gliding chain guides on rail spacers for quiet, smooth operation. Includes quick-mount header bracket which provides fast, swing-up installation. 
  • UL and CSA listed.
  • 2-year warranty.



CPS® Commercial Protector System® 

The presence of primary entrapment protection is standard CPS-U for all modes. Primary entrapment protection devices are monitored continuously to ensure safe operation of the door and limit door opener functionality should an obstruction be detected or in the event of device failure. Optional LiftMaster Monitored Entrapment Protection devices, CPS-UN4, CPS-RPEN4 and CPS-EI, are designed to work in conjunction with LiftMaster commercial door openers to provide enhanced door safety and a broad range of modes and features to end users. Either monitored photo-sensor or monitored 4-wire sensing edge (in conjunction with the CPS-EI Edge Interface) protection may be selected, but one must be detected by the LiftMaster Logic 4.0 or Medium-Duty Logic circuit board in order to unlock full functionality.



Garage doors and garage door openers can be dangerous if not installed and verified by a professional and not used properly . Children must be supervised by an adult when they are inside or in proximity of the garage.



    • LiftMaster MT door openermt liftmaster opener


    • 3-Button control station with LED


    • Radio receiver & external radio control terminal


    • Chain pack (according to door height)


    • Installation hardware


  • Rail according to door height


Single-Button Remote Control 315MHz (371LM)

Our basic single-button remote control isn’t so basic. It can operate a single garage door or gate, or turn your garage door opener lights on/off. You can also use it as an extra remote control to turn on lights or small appliances inside your home – all from the comfort of your car.Get additional access and security with our single-button remote control. Use it to open and close a single garage door or gate, or as an extra remote to turn interior lights and small appliances on inside your home.

371 remote

Liftmaster 371LM Garage Door Opener Remote

3-Button Remote Control 315MHz (373LM)

Our basic 3-button remote control isn’t so basic. It can operate up to 3 garage doors or gates, and/or turn your garage door opener lights on/off. You can also use it as an extra remote control to turn on lights or small appliances inside your home – all from the comfort of your car.Get additional access and security with our 3-button remote control. Use it to open and close 3 garage doors or gates, or as an extra remote to turn interior lights and small appliances on inside your home.

373lm remote

373LM LiftMaster 3-Button Remote Control

3-Buttons Premium Remote Control (895MAX)

Now it’s easy to find the right button on your remote control, even in the dark. The sleek design of the 3-Button Premium Remote Control from LiftMaster® includes bright blue LED buttons for easy night operation. Another convenience feature is its built-in MyQ™ enabled technology that allows you to control up to three LiftMaster® garage door openers or gate operators, or MyQ™ enabled light accessories. And for added security, it is equipped with Security+2.0™ rolling code technology that uses a new code at every click, making it virtually impossible for anyone to steal your remote control signal.

895 3 button remote

Liftmaster 895MAX 3-Button Multi Frequency Remote

3-Button Visor Remote Control (893MAX)

This powerful multi-door control can operate up to 3 garage door openers, gate operators, or MyQ® enabled light accessories. Plus, it’s compatible with all LiftMaster® garage door openers manufactured since 1993.

3 button remote

3-Button Mini Remote Control (893LM)

Mini 3-Button Remote Control 315MHz (890MAX)

Are you always on the go? Our mini 3-button remote control is a miniature version of our 3-button remote control, and just as powerful. It can open and close 3 garage doors or gates, turn opener lights on/off, and/or turn on lights and small appliances in your home. And the best part is that it can fit almost anywhere – in your purse, your pocket, or even on your keychain.Get control on the go. Our mini 3-button remote control is small enough to fit in your purse, in your pocket, or on your keychain, and can operate 3 garage door openers or gates, or lights and small appliances.

3 button 890 max

3-Button Mini Remote (890MAX)

Wireless Keyless Entry System 315MHz (377LM)

Access your garage and home without the use of a key or a remote control. The LiftMaster® Security+® Wireless Keyless Entry can open your garage door using a code that you program directly into the unit. There is also a temporary password option that enables family, friends, or service people to enter the garage/your home without giving them your personal code.


• Backlit keypad which makes numbers easy to see, even in the dark.


• One-button-to-close feature makes it easier than ever to close your garage door.


377lm keypad

377LM Keyless Entry System


Commercial Protector System® (CPS-UN4)


 CPS-RPEN4 Retro-Reflective Photo Eye makes installs faster and simpler, by only having wiring on one side of door and Reflector on the other. Range of 50 feet in most cases. NEMA-4 rated.

retro-reflective photo eye

Liftmaster CPS-RPEN4 Monitored Retro-Reflective Photo Eye



Sensing Edge

 If CPS-U / CPS-UN4 photo sensors are present, a non-monitored 2-wire electric edge or pneumatic (air hose) edge may be used as ancillary protection devices.


Rolling Door Interlock Switch


Interlock switch disables the operator control circuit when a manual door lock is engaged, preventing damage to the door and operator.

Vehicle detection system

 (65-8202) Pneumatic Sensing Edge Kit with exterior air switch, 2-wire coil cord and 14′ air hose.
(65-5202) Pneumatic Sensing Edge Kit with exterior air switch, 2-wire  take-up reel (20′ extended) and 14′ air hose.


Solenoid Brake

Heavy-duty solenoid-actuated brake. Order operator BMT.


Auto-Reconnect Trolley Assembly

Spring-loaded trolley features nylon inserts for quiet operation and auto-reconnect feature eliminating the need to manually reattach the door arm to the trolley after emergency disconnect.

Key Switch


Designed to restrict operation of door to authorized personnel only. Various types available.

Antenna Extension Kit

 The antenna extension kit can be used with EXT-ANT for maximum radio receiver range.86LM (15′)


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