LiftMaster H 3/4 Hp Hoist Door Operator

Key Features
STANDARD APPLICATION	Recommended for rolling steel doors/grilles and high or vertical-lift sectional overhead doors in standard duty-cycle commercial applications where a manual hoist is required
RATED DUTY CYCLE	Standard-duty: Up to 25 cycles/hour and up to 90 cycles/day (using continuous-rated motor)
OPERATOR SPEED	8-9 Inches per second
LIMIT SETTINGS	Mechanical
EMERGENCY DISCONNECT FOR MANUAL OPERATION	Floor-level emergency release sash chain
EMERGENCY DISCONNECT WITH AUTO-RECONNECT	Reconnects when tension is removed from emergency release sash chain
PROGRAMMING	Control function selector dial/tactile button
CIRCUIT BOARD	Solid-state Logic 5.0 circuit board
TIMER-TO-CLOSE	Programmable in 1 second and 15 second increments up to 68 minutes, standard
CLUTCH	Standard adjustable friction clutch
MID-STOP	Programmable
RUN TIME PROTECTION	Maximum run timer
MOTOR REVERSE ACTION PROTECTION	Delay-on-reverse circuit
MOTOR OPERATOR WALL CONTROL	3-Button Control Station with Maintenance Alert System (MAS)

More Information
Insurance Price Type	Fixed
Motor Size	3/4 Hp
Duty Type	Commercial, Commercial/Industrial, Industrial

Specifications
RADIO RECEIVER	LiftMaster Security+2.0
VOLTAGE CONNECTIONS	Single-phase: 115V/230V dual voltage; 3-phase: 208V/230V/460V dual voltage;3-phase: 575V single voltage
CONTROL CIRCUIT	5VDC NEC class 2
DRIVE REDUCTION	Belt/chain & pulley; first-stage heavy-duty 5L V-belt; second-third-fourth stages #48 chain; #50 output spricket chain
BEARINGS/BUSHINGS	Industrial ball bearings on a 1" output shaft; heavy-duty oil-filled bushings on reduction shafts
BRAKE	Standard on 3/4 operators; optional on 1/2 HP
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
WARRANTY	2 years

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