Configuration notes from the suffix codes
The ACS800-31-0060-3+E200+K451: The order string ends +E200+K451, which means the converter ships with two option packages already integrated — not as field-installed kits. For a sourcing buyer that matters because the BOM line is complete as written: a +E200 or +K451 option added later as a separate part is not the same configuration, and the panel-builder commissioning notes that travel with the cabinet assume both codes are present from the factory.
Sourcing posture
Reach out with the full MPN and the panel context (cabinet, motor rating, fieldbus) and the quote comes back against the same configuration the line was frozen on.