Gearhead Trolley (GT) style commercial door operators employ lubricated gears and are optimal for heavy industrial, high-cycle applications.
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.
MOTOR - Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/2, 3/4, 1, 1-1/2 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings
WIRING TYPE - 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.
CONTROL CIRCUIT - 5V DC NEC Class 2.
DRIVE REDUCTION - 10:1 first-stage using heavy-duty gears running in oil bath; cast iron housing; #41 chain second stage; #41 output chain on trolley.
BEARINGS - Sealed roller bearings in gear reducer. Flange-mount industrial ball bearings on drive shaft.
BRAKE - Standard on all GT operators.
CONSTRUCTION - 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.
WARRANTY - Two Years.
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