Genuine LiftMaster K41-0391-000 EMI board for 120/240VAC operators for the Maxum industrial DC operators.
Fitment: LiftMaster Maxum JDC, RJDC, JHDC, TDC.
Check the voltage digit in your model number - a 1 means 120/240V. The 480V board is K41-0390-000.
Ordering the right part depends on the full model number, which is printed on the operator label. Call GateHouse Supplies if you are not sure — we service these units every day.
