Frame identification
The ABB ACS580-01-156A-4 is the 156 A frame of the ACS580-01 wall-mount drive family, sitting in the motor drives tier under the Drives category and the Motors & Motor Controls parent. The order code reads ACS580-01-156A-4 and that exact string is the BOM line a buyer needs to commit. The catalog title and description both list the ACS580 series entry as ACS580-01-156A-4, so no variant suffix is needed on the PO.
Handling and panel consequence of the 54.43 kg figure
Listed weight is 54.43 kgs. That figure matters for two panel-builder decisions: how the cabinet floor or back-plate is reinforced before the drive is landed, and whether a two-person lift is written into the install method statement rather than left as an unwritten assumption. At this mass the drive belongs on the cabinet base rails or a reinforced plinth rather than on a swing-out mid-panel, because the cantilever load on standard DIN rails is not what the 54.43 kgs figure was designed around.
Sourcing posture
Sourcing for ACS580-01-156A-4 is handled against an RFQ on this line, quoted to order. The 54.43 kgs frame is a standard catalog frame of the ACS580-01 family and is specified into the BOM as ABB ACS580-01-156A-4 rather than walked around with an unofficial substitute.