LiftMaster Model MT - Trolley Arm Commercial Door Operator
Medium Duty Trolley Operator for Standard Lift Sectional Doors
Model MT is a Medium-Duty Logic trolley operator for standard lift sectional doors. It features a high-starting torque motor, a compact design, quick-gliding rail spacers and a quick-mount swivel header bracket.MEDIUM-DUTY LOGIC TECHNOLOGYAdded Value
- UL325-2010 compliant Medium-Duty Logic programmable integrated circuit board.
- 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.
- Programmable C2 or B2 wiring options (B2 requires CPS-U, CPS-UN4, or CPS-EI).
- 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.
DUAL VOLTAGE CONNECTIONS
Increase flexibility by enabling the installer to select the required voltage, within phase, to meet job-site requirements.
Within phases, voltage is selectable at the time of installation with the placement of a connector. • Single-Phase: 115V and 230V• 3-Phase: 208V, 230V and 460V• 575V is a discrete model without field-selectable voltage
Disconnects operator from door for manual lifting in an emergency.
HEAVY-DUTY WORM GEAR-IN-OIL GEAR REDUCER
Delivers performance for heavy industrial, high-cycle applications.
CONTROL FUNCTION SELECTOR DIAL
Enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
Conveniently and confidently closes the commercial door automatically after a predetermined amount of time has elapsed for added security and peace of mind.
CONTINUOUS-DUTY HIGH-STARTING TORQUE MOTOR
Performs in demanding industrial overhead door applications.
MOTOR REMOVABLE WITHOUT AFFECTING LIMIT SWITCH SETTINGS
Saves time and money for maintenance.
ADJUSTABLE FRICTION CLUTCH
Helps to protect door and operator from damage should the door meet an obstruction.
Enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
MAXIMUM RUN TIMER
Reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
Prevents abrupt reversal of door, reducing wear on the door and operator system.
3-BUTTON CONTROL STATION WITH MAINTENANCE ALERT SYSTEM (MAS)
Provides open/close/stop functions and notification when routine maintenance is required.
SECURITY+ 2.0™ RADIO RECEIVER
Standard on-board with Logic 5.0 operators. Accepts up to (90) single-button or (30) 3-Button remote controls plus up to (30) wireless keypads or an unlimited number of DIP switch remotes.
Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/2, 3/4, 1 and 1-1/2 HP; single- or three-phase. Capacitor start on single-phase.
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 or sensing edges is optional, although recommended, when using C2, D1 or E2. All other wiring types, B2, T, TS and FSTS can be selected with the addition of an appropriately monitored entrapment protection device (LiftMaster® CPS-U photo eyes, LiftMaster OES monitored sensing edge, or a monitored sensing edge supported by the CPS-EI, as examples). Logic 5.0 operators can only accept UL-Approved LiftMaster monitored entrapment protection devices.
5V DC NEC Class 2.
10:1 first-stage using heavy-duty gears running in oil bath; cast iron housing; #41 chain second stage; #41 output chain on trolley.
Sealed roller bearings in gear reducer. Flange-mount industrial ball bearings on drive shaft.
Standard on all GT operators.
NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
#41 TROLLEY ROLLER CHAIN
Standard on GT Operators.