GB/T 20640-2006
Electrical accessories Circuit-breakers and similar equipment for household use Auxiliary contact units (English Version)

Standard No.

GB/T 20640-2006

Language

Chinese, Available in English version

Release Date

2006

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 20640-2006

Scope

This standard applies to electromechanical auxiliary contact assemblies assembled (or intended to be assembled) with overcurrent protective circuit breakers and residual current operated circuit breakers (with or without overcurrent protection) for household and similar places. The rated voltage of the head assembly shall not exceed AC 440V and DC 250V, and the rated current shall not exceed 10A. The purpose of this standard is to specify: a) the characteristics of the auxiliary contact assembly; b) the electrical and mechanical performance requirements of the auxiliary contact assembly in the following aspects: 1) various working modes to be performed; 2) rated characteristics and marking 3) The test to verify the rated characteristics; C) The auxiliary contact assembly should meet the functional requirements of the following aspects: 1) Environmental conditions, including environmental conditions of closed equipment; 2) Dielectric properties; 3) Terminal blocks; 4) Safe to use.

GB/T 20640-2006 Referenced Document

• GB 10963.1-2005 Electrical accessories-Circuit-breakers for overcurrent protection for household and similar installation Part 1:Circuit-breakers for a.c.operation
• GB 13140.3-1998 Connecting devices for low voltage circuits for household and similar purposes. Part 2: Particular requirements for connecting devices as separate entities with screwless-type clamping units
• GB 14048.5-2001 Low-voltage switchgear and controlgear Part 5-1: Control circuit devices and switching element Electromechanical control circuit devices
• GB 16916.1-2003 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses(RCCB)-Part 1: General rules
• GB 16917.1-2003 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses(RCBO)-Part 1: General rules
• GB 17196-1997 Connecting devices--Flat quick-connect terminations for electrical copper conductors--Safety requirements
• GB 8898-2001 Audio,video and similar electronic apparatus--Safety requirements
• GB/T 14472-1998 Fixed capacitors for use in electronic equipment. Part 14: Sectional specification. Fixed capacitors for electromagnetic interference suppression and connection to the supply mains
• GB/T 1633-2000 Plastics--Thermoplastic materials--Determination of vicat softening temperature(VST)
• GB/T 16935.3-2005 Insulation coordination for equipment within low-voltage systems Part 3:Use of coating,potting or moulding for protection against pollution
• GB/T 2900.18-1992 Electrotechnical terminology--Low voltage apparatus
• GB/T 4207-2003 Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
• GB/T 4728.1 Graphical symbols for electrical diagrams.Part 1:General information*， 2018-07-13 Update
• GB/T 4728.10 Graphical symbols for electrical diagrams—Part 10：Telecommunications: Transmission*， 2022-10-14 Update
• GB/T 4728.11 Graphical symbols for electrical diagrams—Part 11：Architectural and topographical*， 2022-10-14 Update
• GB/T 4728.12 Graphical symbols for electrical diagrams—Part 12：Binary logic elements*， 2022-10-14 Update
• GB/T 4728.13 Graphical symbols for electrical diagrams—Part 13： Analogue elements*， 2022-10-14 Update
• GB/T 4728.2 Graphical symbols for electrical diagrams—Part 2：Symbol elements,qualifying symbols and other symbols having general application*， 2018-07-13 Update
• GB/T 4728.3 Graphical symbols for electrical diagrams.Part 3:Conductors and connecting devices*， 2018-07-13 Update
• GB/T 4728.4 Graphical symbols for electrical diagrams—Part 4: Basic passive components*， 2018-07-13 Update
• GB/T 4728.5 Graphical symbols for electrical diagrams—Part 5：Semiconductors and electron tubes*， 2018-07-13 Update
• GB/T 4728.6 Graphical symbols for electrical diagrams—Part 6： Production and conversion of electrical energy*， 2022-10-14 Update
• GB/T 4728.7 Graphical symbols for electrical diagrams—Part 7：Switchgear, controlgear and protective devices*， 2022-10-14 Update
• GB/T 4728.8 Graphical symbols for electrical diagrams—Part 8：Measuring instruments, lamps and signalling devices*， 2022-10-14 Update
• GB/T 4728.9 Graphical symbols for electrical diagrams—Part 9： Telecommunications :Switching and peripheral equipment*， 2022-10-14 Update
• IEC 60249-2 Amendment 2 - Metal-clad base materials for printed circuits - Part 2: Specifications
• IEC 60947-5-4:1996 Low-Voltage Switchgear and Controlgear - Part 5: Control Circuit Devices and Switching Elements - Section 4: Methods of Assessing the Performance of Low-Energy Contacts - Special Tests (Edition 1.0; Corrigendum 1:2000)

GB/T 20640-2006 history

• 2006 GB/T 20640-2006 Electrical accessories Circuit-breakers and similar equipment for household use Auxiliary contact units