What this drive is
The ABB ACS800-ITTU1-0016-5+B056+P901 is an industrial low-voltage AC drive from the ACS800 family, configured with the -ITTU1-0016-5 base rating and the +B056 and +P901 option suffixes that are typical of ABB's factory-engineered build codes. It sits in the Motor Drives segment of the ABB drives catalog, the same shelf that houses wall-mount and cabinet-build AC drives for standard induction and PMSM motors in industrial panels.
Mechanical envelope
Plan the backplate fixings and the cable entry gland plate around the ACS800-ITTU1 family footprint; the +B056 and +P901 options do not change the mounting pattern, they add to the factory build sheet.
Where it fits in the application
For long motor cable runs, plan a dV/dt or sine filter at the drive end — the ACS800 platform will drive the motor but reflected-wave overvoltage on cables beyond the manufacturer's published limit will eat winding insulation long before the drive itself faults.
Cross-shopping the ACS880-01 successor shelf
The natural successor shelf is the ACS880-01 family. The 040A-5 frame (ACS880-01-040A-5, 18.14 kg) is the heavier, higher-current option if you need headroom; the 034A-5 (10.43 kg) and 027A-5 (10.41 kg) frames are the lighter, lower-current candidates if the ACS800-ITTU1-0016-5+B056+P901 was sized with margin to spare.