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
K20-8100M-DC is a 1HP Motor Replacement Kit (90VDC BM CF). For use with various LiftMaster® 1HP 1-Phase Commercial Door Operators and Gate Operator Systems