GB 21518-2022
ActiveMinimum allowable values of energy efficiency and energy efficiency grades for AC contactors
交流接触器能效限定值及能效等级
Application Summary AI generated
GB 21518-2022 specifies the minimum allowable values of energy efficiency and the energy efficiency grades for AC contactors, covering devices with rated voltages up to 1000V AC. It is applied in industrial and commercial electrical systems to classify contactors into energy efficiency grades (1, 2, or 3), ensuring compliance with national energy conservation regulations during procurement and use. This standard is used by manufacturers, testing laboratories, and regulatory bodies to evaluate and certify the energy performance of AC contactors in power distribution and motor control applications.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.