What you're looking at
The 3AXD50000583270: The description reads ACS880-304LC-0490A-7 PN:kW, IN:A. That tells you it's a 490 A input module for the ACS880 line. The frame size is listed as undefined, so physical dimensions aren't pinned down here — but the WEEE Category 4 classification (Large Equipment, any external dimension more than 50 cm) gives you a rough size floor: this thing is big, over half a meter in at least one dimension.
