GB/T 20641-2025 Active National standards

GB/T 20641-2025 Empty enclosures for low-voltage switchgear and controlgear assemblies—General requirements

Publish Date: 2025-12-02 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 20641-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Low-voltage distribution electrical equipment

ICS Name: Low-voltage switchgear and controllers

Publish Date: 2025-12-02

Implement Date: 2026-07-01

Pages: 32 pages

Scope

This document applies to empty shells (hereinafter referred to as "shells") provided by shell manufacturers before switchgear and control equipment components are installed by equipment manufacturers. This document specifies the definitions, classifications, performance, and test requirements for low-voltage switchgear and control equipment shells (e.g., those that comply with the IEC 61439 series of product standards). Their rated voltage is not more than 1,000 V AC or 1,500 V DC, and they are suitable for indoor or outdoor applications. Note 1: Additional requirements may apply for special applications. Note 2: The shells in this document are suitable for the installation of electrical components. This document does not apply to shells mentioned in other specific product standards (such as IEC 60670-24). The equipment manufacturer is responsible for ensuring that the final products produced using the shells comply with the safety requirements of the corresponding product standards. Note 3: This document can be used as a basic standard for other technical committees.

Development Information

Word Count: 41 Thousand words Pages: 32 pages

Replace the following standards

GB/T 20641-2014 Empty enclosures for low-voltage switchgear and controlgear assemblies—General requirements

Referenced Standards

GB/T 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle) GB/T 2423.17-2024 Environmental testing—Part 2:Test methods—Test Ka:Salt mist GB/T 5169.5-2020 Fire hazard testing for electric and electronic products—Part 5:Test flames—Needle-flame test method—Apparatus,confirmatory test arrangement and guidance GB/T 9286-2021 Paints and varnishes—Cross-cut test GB/T 11021-2014 Electrical insulation—Thermal evaluation and designation GB/T 16422.2-2022 Plastics—Methods of exposure to laboratory light sources—Part 2:Xenon-arc lamps IEC 60068-2-2:2007 IEC 60364(所有部分) IEC 60529:1989 IEC 60529:1989/AMD1:1999 IEC 60529:1989/AMD2:2013 IEC 60695-2-10:2021 IEC 60695-2-11:2021 IEC TR 60890 IEC 62262:2002 IEC 62262:2002/AMD1:2021 ISO 178:2019 ISO 179-1:2010 ISO 179-2:2020 ISO 4628-3:2016 ISO 11469:2016

Adopt standards

IEC 62208:2023

Related Standards

GB 7251.2-1997 Replaced

GB 7251.2-1997 Low-voltage switchgear and control gear assemblies—Part 2:Particular requirements for busbar trunking systems(busways)

Publish Date: 1997-12-30

GB/T 11022-1999 Replaced

GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards

Publish Date: 1999-10-10

GB/T 18858.1-2002 Replaced

GB/T 18858.1-2002 Low-voltage switchgear and control gear Controller-device interface(CDIs)—Part 1:General rules

Publish Date: 2002-10-08

GB/T 18858.3-2002 Replaced

GB/T 18858.3-2002 Low-voltage switchgear and control gear—Controller-Device interface(CDI)—Part 3:Device Net

Publish Date: 2002-10-08

GB/Z 18859-2002 Replaced

GB/Z 18859-2002 Enclosed low-voltage switchgear and controlgear Assemblies—Guide for testing under conditions of arcing due to internal fault

Publish Date: 2002-10-08

GB 14048.4-2003 Replaced

GB 14048.4-2003 Low-voltage switchgear and controlgear—Electromechanical contactors and motor-starters

Publish Date: 2003-09-10