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How long will a phase converter last?

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It is worth mentioning that all products have a natural lifetime. In the case of inverter drives and phase converters these are likely to be of the order of 5-15 years before the first components start to fail, depending on usage of course. In VFDs the semiconductor layers eventually start to delaminate due to thermal effects. Similarly the capacitors and any electromechanical contactors in phase converters tend to fail due to thermal cycling.