LiftMaster K41-0390-000 EMI Board for MAXUM Operators

K41-0390-000 is a replacement MAXUM EMI board designed for 480VAC LiftMaster commercial door operators. This board is recommended for MAXUM 700 lb. and 1,200 lb. operators and is used on units manufactured after 2023. Built for field replacement and service work, it supports proper operator compatibility across select JHDC, JDC, RJDC, and TDC models. Confirm model and part compatibility with the installation manual or replacement parts diagram before ordering.

Specifications

• Replacement EMI board for MAXUM commercial door operators
• Part number: K41-0390-000
• Electrical rating: 480VAC
• Recommended for MAXUM 700 lb. and 1,200 lb. operators
• Compatible with JDC, JHDC, RJDC, and TDC models
• For operators manufactured after 2023 only
• Designed for commercial service and replacement applications
• Helps streamline part identification for matching MAXUM operator configurations
• Installation should be verified against the operator manual or replacement parts diagram

Part Numbers

• K41-0390-000 EMI board, 480VAC, for select MAXUM 700 lb. and 1,200 lb. commercial door operators
• K41-0392-000 Alternate associated part number for this MAXUM EMI board assembly