This part is a kind of semiconductor called ACS550-01.

Function of this product has Low Voltage AC Drives User Manual.

Manufacturers : ABB

Image and pinout :

Some of the text within the PDF file :

DriveIT Low Voltage AC Drives User’s Manual ACS550-01 Drives (0.75…110 kW) ACS550-U1 Drives (1…150 HP) 2 ACS550 User’s Manual ACS550 Drive Manuals GENERAL MANUALS ACS550-01/U1 User's Manual (0.75…110 kW) / (1…150 HP) • Safety • Installation • Start-Up • Embedded Fieldbus • Fieldbus Adapter • Diagnostics • Maintenance • Technical Data ACS550-02/U2 User's Manual (110…355 kW) / (150…550 HP) • Safety • Installation • Start-Up • Diagnostics • Maintenance • Technical Data ACS550 Technical Reference Manual (available in electronic format only) • Detailed Product Description – Technical product description including Dimensional drawings – Cabinet mounting information including power losses – Software and control including complete parameter des [ ... ]

ACS550-01 PDF Datasheet Download