GB/T 10963.1-2020
Electrical accessories—Circuit-breakers for overcurrent protection for household and similar installations—Part 1: Circuit-breakers for a.c. operation (English Version)

Standard No.

GB/T 10963.1-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 10963.1-2020

Replace

GB/T 10963.1-2005

Scope

This part of GB/T 10963 is applicable to AC air circuit breakers with AC 50 Hz, 60 Hz or 50/60 Hz, rated voltage not exceeding 440V (phase-to-phase), rated current not exceeding 125A, and rated short-circuit capacity not exceeding 25000A. This part is as consistent as possible with the technical requirements in GB/T14048.2-2008. This appendix is applicable to circuit breakers with screwless terminals within the scope of Chapter 1. The current of the screwless terminals does not exceed 20A, and is mainly used to connect unprocessed wires with a cross-sectional area up to 4 mm2 (see J. This appendix applies to Circuit-breakers within the scope of Clause 1 having flat quick-connect terminals consisting of plug-in lugs (see K.3.2) of nominal width 6.3 mm and thickness 0.8 mm for mating with socket connector , Connectors are connected electrically according to the manufacturer's instructions. This appendix applies to circuit breakers within the scope of this standard that have screw-type terminals for untreated aluminum conductors or aluminum screw-type terminals for copper or aluminum conductors. For Screw-type terminals for the connection of untreated aluminum conductors are made of copper, or of an alloy containing at least 58% copper (cold-worked) or at least 50% copper (otherwise worked), or of a corrosion-resistant material not less than Copper and other metals having suitable mechanical properties or suitable coated metals. Copper-plated and nickel-plated aluminum conductors are considered as aluminum conductors in this annex. L.

GB/T 10963.1-2020 Referenced Document

• GB/T 14048.2-2008 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
• GB/T 16895.21-2011 Low-voltage electrical installations - Part 4-41: Protection for safety-Protection against electric shock
• GB/T 16935.1-2008 Insulation coordination for equipment within low-voltage systems.Part 1:Principles,requirements and tests
• IEC 60417 Graphical symbols for use on equipment (DATABASE SNAPSHOT) ((SNAPSHOTS ARE NOT AVAILABLE FOR RETAIL PURCHASE))*， 2024-01-11 Update
• IEC 60529 Degrees of Protection Provided by Enclosures (IP Code) (Edition 2.1 ***Applies to French text only***)*， 2024-01-11 Update
• IEC 61210:1993 Connecting devices; flat quick-connect terminations for electrical copper conductors; safety requirements
• IEC 61545:1996 Connecting devices - Devices for the connection of aluminium conductors in clamping units of any material and copper conductors in aluminium bodied clamping units

GB/T 10963.1-2020 history

• 2020 GB/T 10963.1-2020 Electrical accessories—Circuit-breakers for overcurrent protection for household and similar installations—Part 1: Circuit-breakers for a.c. operation
• 2005 GB/T 10963.1-2005 Electrical accessories-Circuit-breakers for overcurrent protection for household and similar installation Part 1:Circuit-breakers for a.c.operation

GB/T 10963.1-2020 -All Parts