What the configured string actually denotes
The ABB ACS800-04-0025-3+D150+E200+K454+L501+L503+N652+P904+Q950+R701 is a configured build of the ACS800-04 wall-mount AC drive platform, shipped as a single factory-coded string with the application, control, and option suffixes already resolved — buyers don't assemble the +codes in the field, they spec the exact line they need on the PO. The base frame designation (ACS800-04) is the wall-mount, single-cabinet industrial drive family; the trailing suffix block carries the application macro, control board, I/O, fieldbus, and brake-chopper selections, which is why the part number is unusually long and why a buyer quoting a replacement has to carry the full string — not just the base code.
Fieldbus and option block — read the suffixes, not the base code
The suffix block (+D150+E200+K454+L501+L503+N652+P904+Q950+R701) is where the real commissioning picture lives: it sets the application macro, the control panel/firmware variant, the I/O and feedback boards, and the fieldbus adapter selection, which collectively determine which PLC, encoder, and brake-resistor drop onto the terminals at install. For a maintenance tech swapping a dead unit, the rule is simple — match the full configured string, not just the base frame. Two ACS800-04-0025-3 drives with different +code tails are NOT the same drive to the PLC scan, the motor nameplate, or the brake resistor sizing, even though they look identical on the lifting eye.