What the code points to
The ABB ACS580-0P-077A-4+F255+G310 is a general-purpose ACS580-series drive configured at the factory for 480 VAC supply, sitting in the Drives / Motor Drives line at 6.80 kgs. The suffix string +F255+G310 indicates option bundles selected at build time on the standard ACS580-0P frame, so two drives with the same base code but different suffix tails are not the same configured unit.
Frame size and panel implications
Listed at 6.80 kgs, the unit is a single-person lift into a panel cut-out, but still heavy enough that the panel builder should plan mounting rails rather than relying on the gland plate to carry the chassis. The +F255 / +G310 option codes are factory-installed and do not change the outer footprint, so cabinet layout drawings keyed off the standard ACS580-0P mechanical outline stay valid as long as the base frame size is preserved.
Where it sits against real siblings
Two ACH580-01 units carried in the same listing — the ACH580-01-014A-4 and ACH580-01-023A-4 — share the 6.80 kgs figure, which means the mechanical envelope is interchangeable with this ACS580-0P; the deciding factor between them is the application class (HVAC/water versus general-purpose industrial), not the chassis.
Sourcing posture
Sourced to order against an RFQ against the configured code ACS580-0P-077A-4+F255+G310, with the +F255 and +G310 option tails quoted as built, not retrofitted — that is the only way the factory-build configuration can be guaranteed to match the original BOM line. Because the suffix string drives the factory build, a spare-unit quote should be requested with both option codes spelled out; a base ACS580-0P-077A-4 without +F255+G310 is a different configured good and will not satisfy the same I/O or firmware profile.