MJ – Medium-Duty Jackshaft Operator
Medium-Duty Jackshaft Operator
Security+®
Built-in 3-Channel Security+ Receiver allows you to learn/program up to 20 LiftMaster 315 MHz remote controls.
Safety Standards
Meets UL 325 Safety Standards.
Commercial Safety Sensors
Protect people and vehicles with safety sensors and accessories that stop the door from closing on obstructions.
Timer to Close
Integrated timer-to-close programmable from 5 to 60 seconds in 5-second increments. Allows for timed automatic door closure after the door reaches the full open position.
115 Volts
1/2 HP, 115V single-phase motor
NEC Class
24V NEC Class 2 control circuit
Single Button Control
Single button control provides an additional input for single-button control functionality. Required for installation of any external radio receiver.
Auxiliary Limit Switches
Auxiliary limit switches provide additional limit switches with dry form C contacts at the open and closed door positions to control lights, heaters and dock levelers.
Interlock Switch
Interlock switch disables the operator control circuit when door is locked, preventing damage to the door and operator.