ABB / ENGINEERING COMPONENT SERIES TECHNICAL BOARD IDENTIFICATION LEX11 R1D ABB CIRCUIT BOARD PART IDENTIFICATION PART NUMBER ANR27900277 MANUFACTURER ABB DRAWING INDEX / 02 CONTROL HARDWARE / BOARD SERIES LEX11 R1D ABB LEX11 R1D is a circuit board identified by part number ANR27900277. It is associated with excitation-system hardware; verify its installed function and assembly compatibility before replacement. CIRCUIT BOARD BRAND ABB MODEL LEX11 R1D PART NUMBER ANR27900277