LiftMaster Door Lock Jackshaft Operator
LiftMaster Door Lock Jackshaft Operator is designed for shopping mall and light commercial applications using lighter rolling doors and grilles. Doors paired with this operator must be properly balanced to allow manual lifting by hand. The operator includes a built-in door lock sensor for added safety and proper operation. Available through authorized LiftMaster dealers and professionally installed to ensure reliable performance.
BY:
Connectivity
- MyQ® Technology lets you monitor and control your commercial door operator and lights from your smartphone, tablet, or computer
- Provides greater peace of mind by allowing remote access anytime, anywhere
- Receive door status alerts as email or push notifications on your mobile device
- Stay informed about when your commercial door opens or closes
- MyQ® Mobile App is free to download with no annual activation fees
- Requires the 828LM MyQ® Internet Gateway for smartphone app connectivity
Performance
Power & Voltage Options
- Dual voltage connections allow installers to select the required voltage on-site
- Single-phase: 115V, 230V
- Three-phase: 208V, 230V, 460V
- 575V available as a separate model (not field-selectable)
- 5V DC NEC Class 2 control system
Motor & Drive System
- Continuous-duty, high-starting torque motor for demanding industrial applications
- Available in 1/2 HP and 3/4 HP, single- or three-phase
- Capacitor start on single-phase models
- Instant reverse and overload protection
- Motor can be removed without affecting limit switch settings
- Brake standard on 3/4 HP models (optional on 1/2 HP)
Door Control & Operation
- Internal door lock sensor prevents jamming and damage when the door is locked
- Control Function Selector Dial supports 7 wiring types, including Timer-to-Close
- Factory preset to C2 wiring (momentary open/stop, constant close)
- Mid-Stop feature allows partial door opening to a preset position
- Adjustable friction clutch protects door and operator from obstructions
Safety & Protection Features
- Maximum Run Timer stops or reverses the door if closing exceeds expected time
- Delay-On-Reverse circuit reduces wear by preventing abrupt reversals
Mechanical Construction
- First-stage heavy-duty 5L V-belt drive
- Second, third, and fourth stages use #48 chain with #50 output sprocket chain
- Industrial ball bearings on a 1" output shaft
- Heavy-duty oil-filled bushings on reduction shafts
Housing & Build Quality
- NEMA Type 1 electrical box
- Heavy-duty 11-gauge steel frame
- Durable powder-coated finish
- All reduction sprockets drilled and pinned to shafts for strength
Warranty
- Backed by a LiftMaster two-year warranty
Safety & Security
- Complies with UL 325 requirements for commercial door operators
- Requires constant pressure to close or use of a monitored external entrapment protection device
- Security+ 2.0™ technology sends a new code with every use, ensuring only authorized access
- Timer-To-Close automatically closes the door after a set time for added security
- Floor-level disconnect allows manual door operation during emergencies
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What applications is this operator designed for?
This operator is ideal for shopping malls and light commercial settings using lighter rolling doors and grilles. Doors must be properly balanced for safe manual lifting.
Does it include a door lock sensor?
Yes. It features a built-in door lock sensor that helps prevent door jamming and protects the operator when the door is locked.
Can I monitor the door remotely?
Yes. With MyQ® Technology and the 828LM Internet Gateway, you can monitor and control the door remotely and receive real-time status alerts.
What voltage options are available?
The operator supports multiple single- and three-phase voltage options, including 115V, 230V, 208V, 460V, and a separate 575V model.
What motor options does it offer?
It is available in ½ HP and ¾ HP models with continuous-duty motors, overload protection, and optional braking on ½ HP units.
What safety features are included?
The operator includes a maximum run timer, delay-on-reverse circuit, adjustable friction clutch, UL 325 compliance, and emergency manual disconnect.
Is professional installation required?
Yes. The operator is sold through authorized LiftMaster dealers and must be professionally installed to ensure safe, reliable operation and warranty coverage.