The Model MT Medium Duty Trolley Operator is designed for use on standard lift sectional doors up to 14 feet high and up to 12 cycles per hour.
MOTOR
- Instant Reverse
- Capacitor Start and Overload Protection
- Removable Without Affecting Limit Switch Settings
- Duty Cycle: Maximum 12 Cycles per Hour;
Less than 50 Cycles per Day
POWER
- 1/2 HP, 115V Single-Phase Motor
- 24V NEC Class 2 Control Circuit
COMMERCIAL-GRADE DESIGN
-First-Stage Heavy-Duty 4L V-belt; Second and Third Stages #48 Chain
- Optional: Heavy-Duty Solenoid-Actuated Brake (BMT)
- Spring Loaded Disconnect for emergency manual
operation
- Maximum Door Height: 14 Feet
BUILT-IN 315 MHz RECEIVER
-315 MHz radio receiver is integral to the Medium-Duty Logic board
- Accepts up to (20) LiftMaster® Security+® remote controls and unlimited DIP switch remote controls
WIRING
-All operators are factory preset to C2 mode, 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 this wiring type
-Momentary contact to close (B2 mode) is an available optional wiring type, but can only be selected when the appropriate LiftMaster Monitored Entrapment Protection Device is installed, either photo eye or the directly wired Optical Edge System
CONSTRUCTION
- Heavy-duty oil-filled bushings
- Adjustable friction clutch helps protect against
damage to the door and operator should the door meet
an obstruction
-NEMA 1 type electrical box, heavy-duty 11-gauge steel
frame with baked-on powder-coat finish, all reduction
sprockets drilled and pinned to shafts
-Rail Assembly provides high-strength dual L-rail track
with exclusive nylon quick-gliding chain guides on rail spacers for quiet, smooth operation. Includes quick- mount swivel header bracket, providing fast, swing-up installation.
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