GB/T 14048.3-2025 Active National standards

GB/T 14048.3-2025 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors,switch-disconnectors and fuse-combination units

Publish Date: 2025-10-31 Implement Date: 2026-05-01 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 14048.3-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Low-voltage electrical equipment

ICS Name: Switch

Publish Date: 2025-10-31

Implement Date: 2026-05-01

Pages: 84 pages

Scope

This document applies to switches, isolators, disconnect switches, and fuse-combination devices in distribution circuits and motor circuits with a rated voltage of no more than 1,000 V AC or 1,500 V DC, as well as dedicated accessories for these devices.
Note 1: Accessories include interconnecting units, expansion interfaces, internal coils, auxiliary contacts, motor operators, etc., which are optional components used in conjunction with the basic units.
This document does not apply to devices covered by IEC 60947-2, IEC 60947-4-1, and IEC 60947-5.
For the special requirements of switches, isolators, disconnect switches, and fuse-combination devices used in photovoltaic DC systems, see Appendix D.
For the specific requirements of low-voltage switchgear connected with aluminum conductors, see Appendix E.
Guidelines for power measurement are provided in Appendix F.
This document does not include additional requirements for electrical equipment in explosive gas environments.

Development Information

Word Count: 150 Thousand words Pages: 84 pages

Same series standard

GB/T 14048.6-2025 Low-voltage switchgear and controlgear—Part 4-2:Contactors and motor-starters—Semiconductor motor controllers,starters and soft-starters GB/T 14048.10-2025 Low-voltage switchgear and controlgear—Part 5-2:Control circuit devices and switching elements—Proximity switches GB/T 14048.12-2025 Low-voltage switchgear and controlgear—Part 4-3:Contactors and motor-starters—Semiconductor controllers and semiconductor contactors for non-motor loads GB/T 14048.16-2025 Low-voltage switchgear and controlgear—Part 8:Control units for built-in thermal protection(PTC) forrotating electrical machines GB/T 14048.25-2025 Low-voltage switchgear and controlgear—Part 9-2:Active arc-fault mitigation systems—Optical-based internalarc-detection and mitigation devices

Replace the following standards

GB/T 14048.3-2017 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors，switch-disconnectors and fuse-combination units

Referenced Standards

GB/T 5169.11-2017 Fire hazard testing for electric and electronic products—Part 11:Glowing/hot-wire based test methods—Glow-wire flammability test method for end-products(GWEPT) GB/T 14048.1-2023 Low-voltage switchgear and controlgear—Part 1:General rules IEC 60034-12 IEC 60034-30-1 IEC 60050-441 IEC 60228 IEC 60269(所有部分) IEC 60417 IEC 60947-5-1:2016 IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 IEC 61000-4-5 IEC 61000-4-6 IEC 61545:1996 IEC 62208 IEC 62475:2010 ISO 2859-1 CISPR 11 CISPR 32