GB/T 3794-1983
Abolished
GB 21518-2022
Active
National standards
force_standard
GB 21518-2022 Minimum allowable values of energy efficiency and energy efficiency grades for AC contactors
GB 21518-2022 Minimum allowable values of energy efficiency and energy efficiency grades for AC contactors
Price:
$ 30
Basic Information
Standard Code:
GB 21518-2022
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
yes
CCS Name:
Technical management
ICS Name:
Integrated Energy and Heat Transfer Engineering
Publish Date:
2022-12-29
Implement Date:
2024-01-01
Pages:
8 pages
Scope
This document specifies the energy efficiency grades, energy efficiency limits, sampling, testing, and calculation methods for contactors (hereinafter referred to as "contactors").
This document applies to three-pole electromechanical, direct-acting integral contactors with a rated frequency of 50 Hz, a rated working voltage of 1,000 V or less in the main circuit, a rated working current of 6 A to 630 A, and a rated control power supply voltage of 400 V AC or less. They are used in application category AC3.
This document does not apply to contactors equipped with external energy-saving devices, contactors for household and similar purposes, or semiconductor contactors (solid-state contactors).
Note: In this document, "direct-acting" refers to products with both a direct-acting contact system and an electromagnetic system.
Development Information
Replace the following standards
Referenced Standards
GB/T 14048.1-2000 Low-voltage switchgear and controlgear—General rules
GB 14048.1-2006 Low-voltage switchgear and controlgear—Part 1:General rules
GB/T 14048.1-2012 Low-voltage switchgear and controlgear—Part 1:General rules
GB/T 14048.1-2023 Low-voltage switchgear and controlgear—Part 1:General rules
GB 14048.4-2003 Low-voltage switchgear and controlgear—Electromechanical contactors and motor-starters
GB/T 14048.4-2010 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector)
GB/T 14048.4-2020 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector)
Related Standards
GB/T 5623-1985
Replaced
GB/T 5623-1985 Guides for the stipulation and administration of electricity consumption norm of product
GB/T 6421-1986
Abolished
GB/T 6421-1986 Methods for drawing energy flow diagram of industrial enterprise
GB/T 6422-1986
Replaced
GB/T 6422-1986 Directives for measuring and testing energy consumption in industrial enterprises
GB/T 6425-1986
Replaced
GB/T 6425-1986 Nomenclature for thermal analysis
GB/T 8174-1987
Replaced