Direct drive operator with a DC electric motor directly coupled to a hollow
shaft (30:1 reduction) worm gear reducer designed to install over keyed door shaft.
Continuous duty 0.75 HP 90 V DC 1750 rpm motor 110 to 240 V 1 PH and 60 Hz power supply.
Integral absolute encoder to control the door travel
24 V 7 amps back-up battery pack and 3/8” ratchet socket to accept and crank for manually operating the door in case of power failure
Programmable wall mountable UL325 compliant NEMA 4X control panel with LCD display and OPEN-CLOSE-STOP buttons on cover
Pulse with modulation programming to provide soft-start soft-stop dynamic brake and speed control
Cycle counter dual upper limit for partial opening time delay on reverse and programmable close timer terminal blocks for external activating and reversing devices.
Photo Cell: NEMA 4
Maximum Recommended Counter balance Sectional Door size: 400 square feet
Apron: Laterally adjustable formed steel 11-3/4" l. x 4" w.
Pendant: 3/4" dia. square head bolt with adjusting nut zinc plated
Door Thickness: 1-3/4" to 2-1/4
Includes: 1 Pair in a box.
Included in each box:
12 flat head stove bolts 3/8" dia. x 2-3/4" l. for 150B1
12 flat head stove bolts 3/8" dia. x 4" l. for 150B2
2 carriage bolts 7/16" dia. x 1"â??long
1 lock joint clip for No. 33 track.
2 blinds for track ends
Compatible with LiftMaster® Models 85503 & 85503-267 DC Battery Backup Belt Drive WiFi® Garage Door Openers; featuring myQ® technology and Secure View™ Video Camera.