What this order code covers
The ABB ACH580-PDR-077A-4 is an ACH580-series motor drive in the PDR frame, with an input spec of 3-phase 380-480 VAC as published for this part. The '077A' suffix marks the heavy-frame rating tier of the ACH580 family — well above the compact ACH580-01 frames — so the panel footprint, gland plate sizing, and floor loading all need to be planned around the larger mechanical envelope rather than copied from a 027A or 014A design.
Frame-class peer check
If the BOM line was specified around an ACH580-PDR-027A-4+B056, dropping this 077A in without rewiring is not a safe assumption: the larger frame needs a recheck of bus bar sizing, line reactor provisioning, and the output filter selection for the motor cable length in service.