What this drive is
The ABB ACS550-U1-041A-6 is a member of the ACS550 series of general-purpose motor drives, line-listed under Motors & Motor Controls in the Drives / Motor Drives class — the wall-mount AC drive slot most panels reserve for standard induction motor control rather than a high-horsepower regenerative application. At 22.68 kgs the unit is a two-person lift on the cabinet lift-eye, and panel builders should size the gland plate and the DIN backplate anchor to clear that mass plus the cable bend radii from the line and motor glands. ABB is the listed brand on this code; the U1 frame and 041A current class position it within the same hardware family as the rest of the ACS550-U1 line that panel builders have specified for years.
Handling and panel-fit
Drive selection on the ACS550-U1-041A-6 starts with the U1 frame and the 22.68 kgs lift mass — that weight sets the cabinet anchor pattern and the eye-bolt rigging point for installation. The Motor Drives category placement means the gland plate is sized for line, motor, brake chopper (if fitted) and control cable entries on the same footprint; cable shielding and EMC gland landing matter in this class because the drive sits next to motor cables carrying switching-edge content. Two-person handling is the working assumption given the mass; rigging should clear the cabinet door swing.