Garage Door Opener - Medium-Duty Series

Offers a robust solution for lightweight commercial garage doors, grilles, and sectional doors—whether they are standard lift, vertical lifting or high lift.

Product view of the LiftMaster MJ medium-duty jackshaft door operator.

Choose a model

  • MH MH The MH medium-duty wall-mount door opener is suitable for standard, vertical, or overhead doors. It offers up to 12 cycles per hour, for a maximum of 50 cycles per day. Features Security+ coding and CPS protection.
  • MT MT The LiftMaster MT medium-duty trolley operator is built for standard-lift sectional doors at up to 12 cycles/hour, for a maximum of 50 cycles per day. With Security+ rolling code receiver and CPS entrapment protection.
  • MJ MJ The MJ medium-duty wall-mount door opener is suitable for standard, vertical, or overhead doors. It offers up to 12 cycles per hour, for a maximum of 50 cycles per day. Features Security+ coding and CPS protection.

The MJ medium-duty wall-mount door opener is suitable for standard, vertical, or overhead doors. It offers up to 12 cycles per hour, for a maximum of 50 cycles per day. Features Security+ coding and CPS protection.

MJ
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LiftMaster MJ Commercial Door Operator

The MJ medium-duty wall-mount door opener is suitable for standard, vertical, or overhead doors. It offers up to 12 cycles per hour, for a maximum of 50 cycles per day. Features Security+ coding and CPS protection.

Product Specifications

Manufactured by LiftMaster

Industry-leading brand of professionally installed garage door openers and gate entry systems

Drive System

Wall Mount Installation (Jackshaft)

Power

1⁄2 HP, 24V.
With Overload Protection

Voltage

Single-Phase: 115V, 60Hz

Brake

Electric service brake

Security+

Rolling code technology that sends a new security code with each use to prevent the cloning of radio signals.

Certifications

UL 325 and CSA listed

Warranty*: 2 years on motor

* Other parts of the opener are guaranteed for 1 year (accessories are not covered by this warranty).
* Photocells and wall station are guaranteed for one year. Please refer to manual for details.

Brochure Owner's manual Replacement Parts Maintenance Program

Product inclusion

Infrared photocells

Trough-beam technology offer you an entrapment protection.

Wall Station with MAS

OPEN/CLOSE/STOP allows complete control of the door. With Maintenance Alert System.

Manual Disconnect

Allows door opener to be operated manually

Optional Accessories

Remotes

371LM

Single-Button remote control 315MHz

373LM

3‐button remote control 315MHz

811LMX

Encrypted DIP Single-Button Remote Control

813LMX

Encrypted DIP 3-Button Remote Control

L932M

2-Button Keychain Remote Control MAX

893MAX

3-Button Remote Control MAX

Wall Controls

02-103

3-Button Wall Station NEMA 1

02-109

Key Control Station NEMA 1

02-110

Key Control Station NEMA 1 with Stop Button

Access Systems

878MAX

Wireless Keypad MAX

KPW250

Wireless Commercial Keypad

Traffic Control

50450

Sectional Door Interlock Switch

Safety Devices

CPS-U

Monitored Infrared Photoelectric Sensors NEMA 1 (included in all operators)

CPS-UN4

Monitored Thru-Beam Photoelectric Sensors NEMA 4

CPS-RPEN4

Monitored Retro-Reflective Photoelectric Sensors NEMA 4

OES-SD

Monitored Optical Edge System NEMA 4

Other Devices

EXT-ANT

Antenna External Kit

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Warning

Garage doors and garage door openers can be dangerous if not installed and verified by a professional and not used properly.