They are not a substitute for a product sellers or users own judgment with respect to the particular product referenced in the Standard or guideline, and NEMA does not undertake to guarantee the performance of any individual manufacturers products by virtue of this Standard or guide. Thus, NEMA expressly disclaims any responsibility for damages arising from the use, application, or reliance by others on the information contained in these Standards or guidelines. An extended motor product is a system that involves an electric motor paired with another component or components to deliver work. Examples of extended motor products include commercial and industrial pump, fan and compressor products, among others, which all use motors in combination with other components. In particular, extended motor products are increasingly subject to energy efficiency regulation whereby both the minimum energy efficiency of the motor itself is regulated along with the minimum energy efficiency of the product (e.g., pump or fan) containing the motor. This may not always be the best or most economical approach to achieving energy savings, particularly where extended motor products use variable speed drives. A motor not subject to efficiency regulation paired with a variable speed drive is capable in many extended motor products of achieving greater energy savings than an extended motor product not using a variable speed drive with a motor subject to minimum efficiency regulation. This user guide gives a quick overview on how to use the power loss data of power drive systems calculations from IEC Standard 61800-9-2 to make energy efficiency determinations of extended motor products when considering energy regulations for those systems. The energy efficiency regulation of extended motor products allows additional energy saving compared to the component regulation predominantly used today. In the case of an extended motor product without a variable speed drive, an end user is motivated to use the most efficient motor with the highest IE (international efficiency) class.