LiftMaster H J -New style with thermal overload Manual - Page 4

OPERATOR SPECIFICATIONS MOTOR ELECTRICAL TYPE Continuous Duty HORSEPOWER 1/3, 1/2, 3/4 and 1 HP Single or Three Phase SPEED 1725 RPM VOLTAGE 115, 220, 230 Single Phase 208, 230, 460, 575 Three Phase CURRENT See Motor Nameplate TRANSFORMER 24Vac CONTROL STATION NEMA Three-Button Station Open/Close/Stop WIRING TYPE C2 (Standard) Momentary contact to OPEN & STOP, constant pressure to CLOSE, open override plus wiring for sensing device to reverse. (Other types available. See chart, Pg. 11) LIMIT ADJUST: . . . . .Linear driven, fully adjustable screw type cams. Adjustable to 30 feet. MECHANICAL DRIVE REDUCTION Primary: Heavy duty (5L) V-Belt Secondary: #48 chain/sprocket; Output: #50 chain OUTPUT SHAFT SPEED 36 RPM DOOR SPEED 6-7" (15.24-17.78 cm) per second depending on door BRAKE (Optional Solenoid actuated disc brake BEARINGS Output Shaft Shielded ball bearing; Clutch Shaft: Iron Copper sintered and oil impregnated HAND CHAIN WHEEL Left or right handing Models H and HJ ONLY SAFETY DISCONNECT: Model J Floor level disconnect for emergency manual door operation. Model H Floor level chain hoist with electrical interlock for manual door operation. Model HJ Includes both floor level disconnect systems stated above. Reversing Edge Optional) Electric or pneumatic sensing device attached to the bottom edge of door. 4