The ABB 3ADT218566S0136 is a DCS880-S01-3300-10L DC converter — a 2-quadrant unit rated for 3300 A at 990 VAC input. Frame size H8. It's the power conversion stage for large DC motor drives in heavy industrial applications: rolling mills, mine hoists, cement kilns, or any process that needs controlled DC power from an AC line.
The 3300 A current rating at 990 VAC defines the converter's throughput. The 2Q topology handles motoring in one direction and regenerative braking in the other. Three analog inputs and two analog outputs are on board for speed reference, current feedback, or process signals — enough for a basic drive control loop without an external I/O module. The 82 dB(A) sound level is the fan noise at full load; plan for ear protection if the cabinet is near operator stations. Auxiliary terminals carry IP00 protection per IEC 60529 and IEC 60947-1 — no enclosure around the control wiring. That's standard for large converter cabinets where the panel itself provides the IP rating, but it means the terminals need to live inside a locked, grounded enclosure. Operating humidity spans 5 to 95% RH, non-condensing.