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LiftMaster LC-36A Light Curtain

LiftMaster LC-36A Light Curtain

LiftMaster’s® LC-36A Light Curtains provide 36 in. of coverage to keep your customers, employees and equipment safe. The LC-36A must be used with a primary entrapment device and be installed along the vertical plane of the door. The light curtains are NEMA 4 rated.



  • Color-coded transmitter and receiver for easy identification.
  • Provides 36 in. of effective height coverage to increase the area of protection.
  • Multiple sets of LC-36A curtains can be mounted on a door providing coverage flexibility*.
  • Maximum door width of 33 ft. ensures coverage for most commercial doors.
  • Eight (8) LEDs per side and 22 cross-beams produce an invisible curtain of infrared light for maximum detection capability.
  • Solid LED lights indicate correct sensor alignment, simplifying installation.
  • Green LED on receiver flashes when interrupted, providing visible interrupt detection.

The LiftMaster LC-36A is an ancillary device and must be used with a primary monitored entrapment device to maintain compliance with UL 325. The LiftMaster CPS-UN4, CPS-RPEN4, CPS-OPEN4 and CPS-U meet this requirement. Failure to use the appropriate sensor or failure to install the sensors properly, may expose the installer and customer to liability, should an accident occur.