Siemens SIMOREG‑K 6RA2485‑6DV62‑0 four‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 600A, regenerative energy feedback to mains without external braking resistor, digital armature & field control, heavy‑duty forced‑air cooling, for ultra‑high‑power reversible DC motor speed‑control applications.

Siemens SIMOREG‑K 6RA2475‑6DS22‑0 single‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 200A, non‑regenerative operation requiring external braking resistor, digital armature & field control, forced‑air cooling, for heavy‑duty non‑reversible DC motor speed‑control applications.

Siemens SIMOREG‑K 6RA2418‑6DS22‑0 single‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 30A, non‑regenerative operation requiring external braking resistor, digital armature & field control, forced‑air cooling, for light‑to‑medium‑duty non‑reversible DC motor speed‑control applications.

Siemens SIMOREG‑K 6RA2431‑6DS22‑0 single‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 125A, non‑regenerative operation requiring external braking resistor, digital armature & field control, forced‑air cooling, for medium‑heavy‑duty non‑reversible DC motor speed‑control applications.

Siemens SIMOREG‑K 6RA2425‑6DS22‑0 single‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 60A, non‑regenerative operation requiring external braking resistor, digital armature & field control, forced‑air cooling, for medium‑duty non‑reversible DC motor speed‑control applications.

Siemens SIMOREG‑K 6RA2428‑6DS22‑0 single‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 90A, non‑regenerative operation requiring external braking resistor, digital armature & field control, forced‑air cooling, for medium‑duty non‑reversible DC motor speed‑control applications.

Siemens SIMOREG‑K 6RA2481‑6DV62‑0 four‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 400A, regenerative energy feedback to mains without external braking resistor, digital armature & field control, forced‑air cooling, for heavy‑duty reversible DC motor speed‑control applications.

Siemens SIMOREG‑K 6RA2477‑6DV62‑0 four‑quadrant fully‑digital thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 250A, regenerative energy feedback to mains without external braking resistor, digital armature & field control, forced‑air cooling, for heavy‑duty reversible DC motor speed‑control applications.