Author: David Chong

Siemens SIMOREG 6RA28 6RA2825‑6DS21‑0 single‑quadrant non‑regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 60A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry low‑medium‑power DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2828‑6DS21‑0 single‑quadrant non‑regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 90A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry low‑medium‑power DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2831‑6DS21‑0 single‑quadrant non‑regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 125A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry medium‑power DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2875‑6DS21‑0 single‑quadrant non‑regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 200A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry medium‑power DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2881‑6DS21‑0 single‑quadrant thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 400A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry high‑power DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2885‑6DS21‑0 single‑quadrant thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 600A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry high‑power DC variable‑speed motor application

Siemens SIMOREG 6RA28 6RA2877‑6DS21‑0 single‑quadrant thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 250A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2818‑6DV61‑0 four‑quadrant regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 30A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry low‑power DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2825‑6DV61‑0 four‑quadrant regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 60A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry low‑medium‑power DC variable‑speed motor applications.

Siemens SIMOREG 6RA28 6RA2830‑6DV61‑0 four‑quadrant regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 100A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry medium‑power DC variable‑speed motor applications.