What it is
The ABB ACS800-104-0120-5+Q950 is an inverter unit on the Motor Drives line, listed in the ACS800-104 frame as catalogued under ASEA BROWN BOVERI. The +Q950 suffix sits on the order code as configured — a build code that typically selects a specific option package on the ACS800-104 platform, so the BOM line should be quoted against the full string, not a bare frame code. The ACS800-104 family is the cabinet-style, liquid-cooled branch of the ACS800 series — inverter modules intended to mount inside a customer-built or ABB-supplied cabinet rather than as a wall-mount standalone drive.
Handling and mechanical note
The unit is listed at 37.00 kgs, so panel-side lifting needs a second pair of hands or a hoist; this is a cabinet-mount module, not a DIN-rail snap-on, and the mounting surface has to carry the mass under continuous vibration.
Where the class fits
ACS800-104 inverter units are typically specified for industrial process lines where the drive is integrated into a MCC section or a dedicated drive cabinet alongside line filtering, input contactors, and output reactors or dV/dt filters — the inverter module is the power stage, not the complete packaged drive.