LiftMaster MAXUM JDC 1/2 HP Jackshaft Operator – 480V 3-Phase Commercial Door Operator with CPSU Photoeyes

Battery Backup

• Smooth Start/Stop Operation: extends the life of the operator and door hardware.
• Faster Speed: average of 12” per second opening on sectional doors, and 8-9” per second on rolling steel doors.
• Floor Level Wall Controller: 4 line LCD display for easy access to programming, troubleshooting, and diagnostics at floor level.
• Battery Backup: provides seamless operation during power outages.
• Advanced Diagnostics and Troubleshooting: real-time alerts and relevant information without flashing LEDs.
• Wi-Fi®: Connect to myQ Facility via Wi-Fi for visibility and control.
• High-efficiency motor and gearbox for adequate power.
• New 700 Jackshaft operators are 30 lbs. lighter than 1/2 HP Logic 5.0.
• Protect up to 3 entrapment protection points.
• Includes LiftMaster CPSU photocell kit: For openings up to 30'W (indoor use only)

Operator does not include the door sprocket.

The LiftMaster MAXUM JDC 1/2 HP Jackshaft Operator, 480V 3-Phase, is a commercial DC jackshaft door operator designed for compatible sectional overhead doors, rolling steel doors, and commercial door applications that require wall-mounted operation. This model is intended for professional commercial installations where 480V 3-phase power is available and a compact, efficient jackshaft operator is preferred over a trolley-style ceiling-mounted operator.

This operator is part of LiftMaster’s MAXUM commercial operator platform and is designed for faster, smoother operation compared with older commercial operator systems. It features smooth start/stop operation, a high-efficiency motor and gearbox, floor-level programming, built-in Wi-Fi connectivity, advanced diagnostics, and integrated battery backup functionality.

This model is commonly used on commercial overhead doors, industrial sectional doors, warehouse doors, loading dock doors, municipal buildings, service bays, and other commercial facilities where reliable powered operation is needed for a high-lift, vertical-lift, or rolling door application.

Compatibility & Fitment

This LiftMaster MAXUM jackshaft operator is designed for compatible commercial door systems requiring a 1/2 HP operator with 480V 3-phase power. Before ordering, confirm the door type, door size, door weight, duty-cycle requirements, shaft configuration, available side room, voltage, phase, control requirements, entrapment-protection requirements, and whether the application requires a jackshaft operator rather than a trolley operator.

LiftMaster describes the MAXUM JDC jackshaft operator as a wall-mounted commercial DC operator with built-in Wi-Fi, myQ Facility connectivity, advanced diagnostics, and faster average operating speed. The platform is available for commercial sectional and rolling door applications, and LiftMaster notes average opening speeds around 12" per second on sectional doors and 8–9" per second on rolling steel doors.

This product page lists the unit with a LiftMaster CPSU photocell kit for indoor openings up to 30' wide. The operator does not include the door sprocket, so the proper sprocket and any job-specific mounting or drive components should be selected separately.

Key Features

LiftMaster MAXUM JDC commercial jackshaft operator
1/2 HP motor rating
480V 3-phase power
Commercial DC operator platform
Wall-mounted jackshaft design
Smooth start/stop operation
Built-in Wi-Fi for myQ Facility connectivity
Floor-level wall controller with 4-line LCD display
Advanced diagnostics and troubleshooting
High-efficiency motor and gearbox
Battery backup functionality
Average opening speed up to approximately 12" per second on sectional doors
Designed to protect up to 3 entrapment-protection points
Includes LiftMaster CPSU photocell kit for indoor openings up to 30' wide
Operator does not include door sprocket

Best Applications

Commercial sectional overhead doors
Industrial sectional doors
Rolling steel doors
Warehouse doors
Loading dock doors
Service bay doors
Municipal and fleet facilities
Commercial properties with 480V 3-phase power
High-lift and vertical-lift sectional door systems
Commercial door upgrades from older jackshaft operators
Professional commercial door service and installation work

Installation Notes

This operator should be installed according to LiftMaster instructions and the commercial door manufacturer’s requirements. Confirm voltage, phase, circuit protection, door balance, shaft condition, sprocket selection, chain alignment, door travel limits, monitored safety devices, wall control location, and all required entrapment-protection devices before installation.

The garage door must be properly balanced before operator installation. A commercial jackshaft operator should not be used to compensate for broken springs, incorrect spring tension, damaged cables, worn drums, bent tracks, failed bearings, or an unsafe door system.

After installation, test the operator through multiple full open and close cycles. Confirm smooth travel, correct limit settings, correct safety-device response, proper monitored photoeye operation, Wi-Fi/myQ setup if used, and reliable operation under normal traffic conditions.

Safety Notice

Commercial garage doors and industrial overhead doors are heavy systems that operate with springs, cables, drums, shafts, bearings, electrical controls, and monitored safety devices. Incorrect operator selection, wiring, programming, or installation can cause serious injury, death, door damage, or property damage.

This product is for professional installation only. Installation should be performed by trained commercial garage door technicians or qualified overhead door professionals. Never bypass monitored entrapment-protection devices, photoeyes, safety edges, or required reversing systems.

Why Buy From Garage-DoorParts.com

Garage-DoorParts.com supplies professional garage door operators, commercial door parts, safety devices, and replacement hardware for contractors, technicians, service companies, facility maintenance teams, and knowledgeable buyers. This LiftMaster MAXUM 1/2 HP 480V 3-phase jackshaft operator is a professional commercial operator solution for compatible overhead door systems where reliability, diagnostics, and modern connectivity are important.

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