• Usually Ships Following Business Day


  • Usually Ships Following Business Day
MSRP: $74.07
(You save $6.74 )
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Increase the safety and functionality of your LiftMaster Garage Door Operator by installing a LiftMaster Interface Box for a CPS. The Safety Beam CPI Interface Box is compatible with the LiftMaster 3950 Garage Door Opener and Link Commercial Door Operators only. The LiftMaster relay is a replacement interface box that allows the garage door to function correctly and safely. The CPI Interference Box is used with CPS protector systems.

The LiftMaster 41K4629 Safety Beam CPI Interface Box is easy to install and comes with clearly labeled connection points to ensure the proper connections are made. The box is petite and comes with pre-drilled mounting holes on the attached side brackets. The replacement part ships quickly from North Shore Commercial Door and usually leaves the warehouse the next business day after ordering.

  • LiftMaster interface box for a CPS
  • Replacement interface box
  • Used with CPS Protector Systems (included)
  • For use on LiftMaster and Link Commercial Door Operators only
  • Uses 24V of electricity