Soft starters are matched by rated operational current (A) and motor power at 400 V, the supply voltage range, the control voltage, whether they switch two or three phases, and whether an internal bypass contactor is fitted. The table groups the catalogue by current so an equivalent Siemens SIRIUS 3RW30/3RW40/3RW52, Schneider Altistart ATS01/ATS22/ATS48, ABB PSR/PSE/PSTX or Eaton DS7 unit can be quoted.
For heavy-duty starts (high-inertia loads, more than 10 starts per hour) select the next frame up or a starter rated for heavy duty; check the number of starts per hour in the manufacturer data.
Coverage: 292 catalogue rows with a readable rating, of 349 in these categories. Each cell lists up to six part numbers per make; click a part number for the product page and a quotation.
Part numbers and designations are those of the original manufacturers and are given for identification. cBallast is an independent supplier; confirm ratings against the nameplate of the installed equipment before ordering. Table generated from the cBallast catalogue on 2026-09-29.