Commercial Garage Door Openers by Liftmaster®
Model DJIndustrial-Duty Jackshaft Operator with Internal Door Lock Sensor
Model DJ is an industrial-duty jackshaft operator with an internal door lock sensor. It features a removable hinged electrical box cover, a continuous-duty high-starting torque motor, industrial ball bearings on the output shaft and a universal-mount frame design.
Reliability & Programming Simplicity
Available Plug-in Options for Logic 3.0 (L3) STANDARD FEATURES Motor: Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/3 and 1/2; single- or three-phase. Removable without affecting limit switch settings. Drive Reduction: First-stage heavy-duty 5L V-belt; second and third stages #48 chain; #50 drive chain. Emergency Disconnect: Easy emergency manual operation using an electrically interlocked floor level disconnect. Wiring Type: D1, C2 and B2 wiring types are all available. D1 wiring is standard and is pre-wired to accept a photoelectric control, sensing edge, radio controls and most types of access control devices. Failsafe wiring can be selected with the addition of a CPS-L, CPS-LN4 or failsafe edge and CPS3 card. External Radio Control Terminal: Quick, convenient connections for retrofitting or adding radio controls on logic or mechanical operators. Bearings: Industrial ball bearings on a 1" output shaft; heavy-duty oil-filled iron bearings on reduction shafts. Friction Clutch: Adjustable, helps protect against major damage to door and operator should the door meet an obstruction. Construction: NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powdercoat finish, all reduction sprockets drilled and pinned to shafts. Push Button Station: 2-button station for OPEN/CLOSE functions is standard with D or D1 wiring. 3-button station is standard with B2 or C2 wiring. Positive Locking Mechanical Brake System: Self-locking mechanical reduction system that functions as a holding brake. Warranty: 2-year warranty. CONTROL ACCESSORIES CPS® Commercial Protector System®: (recommended) A "non-contact" photo safety sensor designed to sense an obstruction and signal the door operator to reverse to open. Sensing Edge: (recommended) Designed to sense an obstruction and signal door operator to stop or reverse as desired. An electric or pneumatic sensing device can be added to bottom edge of door. 2-Position Keylock (flush mount): Ideal for use with the DJ operator. Provides open/close operation with spring to center (Model 02-109). Emergency Egress Device: Faceplate mounts flush on wall and contains pull handle to disconnect operator from grille. Allows the door to be opened manually or by spring tension. |

