What it is
The ACS800-U1-0016-5+P90: Listed weight is 14.06 kgs — the value that drives two-person lift and panel-framing decisions for a wall-mount install, not the parameter that picks this drive against alternatives in the same class.
Frame class versus the ACS880-01 successor family
The ACS880-01 successor family lists three frames: ACS880-01-040A-5 at 18.14 kgs, ACS880-01-034A-5 at 10.43 kgs, ACS880-01-027A-5 at 10.41 kgs. The seed ACS800-U1-0016-5+P90 at 14.06 kgs falls between the 034A and 040A frames on mass only.