Motor Efficiency classes as defined by IEC/EN 60034-30-1: 2014

Motor efficiency is important to optimize power consumption. The standard defines four IE (International Efficiency) efficiency classes for single speed electric motors that are rated according to IEC 60034-1 or IEC 60079-0 (explosive atmospheres) and designed for operation on sinusoidal voltage.  Super-Premium efficiency IE4 Premium efficiency IE3 High Efficiency IE2 Standard Efficiency IE1 The coverage …

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