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Inverter/Vector Duty

An inverter-duty motor is a much newer concept that became necessary as motors began to be driven by VFDs (inverters or AC drives). An inverter duty motor can withstand the higher voltage spikes produced by all VFDs (amplified at longer cable lengths) and can run at very slow speeds without overheating.


INVERTER-READY means that some of the extras required to protect the machine from the damaging effects of the AC drive output waveform are included. Typically, this means beefed up insulation on the winding and (usually) a choice of a certain pitch to help damp out prevalent harmonics.