What this order code is
The ABB ACS580-01-145A-4 + B056 is a wall-mounted drive from the ACS580-01 line, catalogued under Servo Motor & Drives.
Reliability framing for this build slot
For a reliability review, the failure mode that actually decides approval here is the frame-mounted cooling path: a wall-mounted drive draws its heat-sinking through the rear face, so the cabinet back-plate and clearance envelope around the unit are what govern the long-term junction temperature — not the headline current class.