Drive component for the ACQ580-01-115A-2
The ABB 3BBR50000418046 is a Frame Size R5 component within the ACQ580-01-115A-2 drive family. This is the part that carries the structural and electrical interface for that drive variant — the frame size determines the physical mounting footprint, bus-bar layout, and the maximum continuous current the drive can handle. For the ACQ580-01-115A-2, the R5 frame is the mechanical foundation; if you are replacing a failed drive or sourcing a spare for a line-down situation, confirming the frame size against the existing drive's nameplate is the first fit check.
What the frame size tells you
Frame Size R5 on the ACQ580-01 series defines the mechanical envelope and the power-terminal arrangement. When you are swapping a drive in a panel, the R5 frame dictates the drill pattern on the backplate, the bus-bar span to the line reactor or input filter, and the clearance needed for the cooling duct. It also sets the maximum motor cable cross-section the terminals accept — a detail the panel builder needs before laying out the gland plate. If the existing drive is an R5, this part drops in without rework.