Multiple Sources - Siemens Vendor Manual

Physical Description MicroHarmony Cell Sizes 40 - 260A Manual

2.10.4 Multiple Sources

Never substitute with non-approved components.
Never parallel or series non-identical manufacturer's (or Siemens MDIT numbers) for IGBTs or capacitors in the
2
same power cell.
For any given cell, all electrolytic power capacitors must be from the same vendor with identical MDIT and
manufacturer's part numbers. Mixing capacitors can cause voltage imbalance and damage the cell.
IGBTs must be from the same vendor with identical MDIT and manufacturer's part numbers. Make sure to use the
correct IGBT kit label on the outside of the cell chassis. Always use the correct gate clamp and cell control board.
Mixing IGBTs or using incorrect control boards can result in cell damage.
Rectifiers should be from the same vendor with identical MDIT and manufacturer's part numbers; however this is not
required.
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