What the order code pins down
The ABB ACS580-01-124A-4+B056 is the wall-mount ACS580 family low-voltage drive at 124 A output current, ordered with the +B056 option suffix on the base code. The base frame carries 124 A output current and the +B056 suffix is appended to the ABB order string, which on ACS580 builds typically denotes a factory-fitted option kit shipped on the same logistics line as the drive.
Handling and mounting
At 45.81 kg the unit sits in the wall-mount class where panel builders plan a two-person lift and confirm the wall structure or back-plate is rated for the load before the drive arrives. Mounting the ACS580-01 vertically with the required clearances top and bottom keeps the cooling path intact — once the heatsink fins are choked the DC-bus caps are the first to suffer, and on these frames I have autopsied more than one with bulged tops that started as poor clearance at install.