GB 21518-2022 (English Version) PDF

Standard No.: GB 21518-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB 21518-2022
Replace: GB 21518-2008

Scope: This document specifies the energy efficiency level, allowable value of energy efficiency, sampling, testing and calculation methods of AC contactors (hereinafter referred to as contactors). This document is applicable to the three-pole electromechanical type with a rated frequency of 50 Hz, a rated operating voltage of the main circuit of 1000V and below, a rated operating current of 6A~630A, a rated control power supply voltage of the contactor of AC 400V and below, and an application category of AC3. , Direct-acting integral contactor. This document does not apply to external power-saving devices, household and similar contactors and semiconductor contactors (solid-state contactors). Note: The "direct-acting type" mentioned in this document refers to the products whose contact system and electromagnetic system are both direct-acting.

GB 21518-2022 Referenced Document

GB/T 14048.1 Low voltage switchgear and controlgear Part 1: General principles*， 2023-11-27 Update
GB/T 14048.4 Low-voltage switchgear and controlgear—Part 4-1: Contactors and motor-starters—Electromechanical contactors and motor-starters (Including motor protector)

2022 GB 21518-2022 Minimum allowable values of energy efficiency and energy efficiency grades for AC contactors
0000 GB 21518-2008(XG1-2008)