The ABB 3ADT218566S0245 is a DCS880-S02-4000-08L DC converter — a four-quadrant regenerative unit rated for 800 VAC input and 4000 A output. It sits in the H8 frame size, which sets the physical mounting footprint and busbar interface for the drive cabinet. Four-quadrant operation means it can both motor and regenerate in both directions, making it suitable for overhauling loads like cranes, hoists, and test stands where energy recovery is needed.
The 4000 A continuous rating is the headline number — this converter is sized for large DC motor drives or electrolysis supplies in the multi-megawatt range. The 800 VAC input side expects a three-phase supply at 50 Hz, as listed. Acoustic noise is specified at 82 dB(A) — expect audible fan and magnetic hum at that level, which may require ear protection in walk-in cabinets or separate drive rooms. Auxiliary terminals carry an IP00 protection rating per IEC 60529 and IEC 60947-1, meaning the terminals are open and require enclosure or segregated wiring for safety. The main drive enclosure rating is not stated here, but the terminal strip itself is exposed.
Analog I/O for process integration
The converter carries 3 analog inputs and 2 analog outputs for speed reference, torque limit, or process feedback from a PLC or DCS. Enough for a basic speed/current control loop with one spare input.