Liftmaster Model J, 110 Volt, 1/2 H.P., Industrial Duty Sidemount Garage Door Opener

The Model J continuous-duty door operator is designed for use on industrial sectional doors with high or vertical lift and small rolling doors and grilles.

* UL325-2010 Monitored Entrapment Capability (provides primary monitored entrapment protction through monitored photo sensors: either CPS-U or CPS-UN4, or a 4-wire monitored edge using the CPS-EI interface) * UL-Listed and UL-Labeled to insure compliance to local codes and approval at final inspection * Solid-state Logic 5.0 (L5) circuit board * Continuous-duty high-starting torque motor with instant reverse, capacitor start, and overload protection * First-stage heavy-duty 5L V-belt; second and third stages #48 chain; #50 chain * Easy emergency manual operation and floor level disconnect * 5V DC NEC Class 2 * Wiring is factory present to C2 mode * Adjustable friction clutch helps protect against damage to the door and operator * Self-locking mechanical reduction system * Industrial ball bearings on a 1" output shaft * 3-button station for open/close/stop functionality * 315MHz radio receiver on Logic 5.0 * NEMA 1 type electrical box * 2-year warranty

Works with all high lift and full vertical industrial sectional garage doors and rolling steel doors that have a 1" drive or torsion shaft.

J 50 11 L5 Liftmaster Garage Door Opener-Installation Instructions -Connecting Chain and Sprocket (fits over your 1" garage door shaft)*Transmitters, keypads and safety equipment sold separately on site. Purchase your safety equipment and accessories separately: CPS-L photo protective beams, 658202 or 658302 Pneumatic safety edge kits. Transmitters 371LM, 372LM, 373LM or 333LM. Keypad 377LM. Always use a additional safety device when operating your door from a remote control transmitter or when your garage door is operated from a push button that is momentary contact close.