GB/T 14048.3-2025 Active
GB/T 14048.3-2025 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors,switch-disconnectors and fuse-combination units
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 14048.3-2025 |
| CCS | Low-voltage electrical equipment |
| ICS | Switch |
| Implement Date | 2026-05-01 |