Weidmuller 1816250000 Wire Marker Card. Weidmuller MultiFit Neutral Terminal Marker, MultiCard, 5 mm Marker Length, 5 mm Marker Width, White Background, Polyamide. Additional Description: WEID-1816250000 (N) MF 5/5 MC NE WS BX=500 CD=100 EA NON-CANCELABLE, NON-RETURNABLE. Catalog Description: Marker for labelling terminals. The markers can be labelled with a printer or plotter and the appropriate software..