GB/T 14048.4-2020 Active National standards

GB/T 14048.4-2020 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector)

Publish Date: 2020-09-29 Implement Date: 2021-04-01 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 14048.4-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Control appliances

ICS Name: Low-voltage switchgear and controllers

Publish Date: 2020-09-29

Implement Date: 2021-04-01

Pages: 146 pages

Scope

This part of GB/T 14048 specifies:
a) The characteristics of electrical appliances.
b) The applicable conditions for the following aspects:
1) Operation and performance;
2) Dielectric properties;
3) Protection grade;
4) Structure, including safety measures to prevent electric shock, fire, and mechanical hazards.
c) Tests used to confirm that electrical appliances meet these conditions, as well as test methods.
d) Information that needs to be provided on the product or in the manufacturer's documents.
This part also specifies the evaluation procedures for electromechanical overload protection in safety areas, such as protecting motors located in explosive environments from external environmental influences (see Appendix L).
This part applies to:
——Electromechanical contactors and starters, including motor protection switch devices (MPSD);
——Operating devices for contactor relays;
——Special contacts for the coil circuits of contactors or contactor relays;
——Special accessories (such as special wiring and special latching accessories).
The above-mentioned electrical appliances are connected to distribution circuits, motor circuits, and other load circuits, with a rated voltage of not more than 1,000 V AC or 1,500 V DC.

Development Information

Word Count: 279 Thousand words Pages: 146 pages

Same series standard

GB/T 14048.2-2020 Low-voltage switchgear and controlgear—Part 2:Circuit-breakers

Replace the following standards

GB/T 14048.4-2010 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector)

Referenced Standards

GB/T 755-2019 Rotating electrical machines—Rating and performance GB/T 2423.2-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests B:Dry heat GB/T 2423.22-2012 Environmental testing—Part 2:Test methods—Test N:Change of temperature GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 3836.15-2017 Explosive atmospheres—Part 15:Electrical installations design,selection and erection GB/T 3956-2008 Conductors of insulated cables GB/T 11021-2014 Electrical insulation—Thermal evaluation and designation GB/T 14048.1-2012 Low-voltage switchgear and controlgear—Part 1:General rules GB/T 14048.2-2020 Low-voltage switchgear and controlgear—Part 2:Circuit-breakers GB/T 14048.3-2017 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors，switch-disconnectors and fuse-combination units GB/T 14048.5-2017 Low-voltage switchgear and controlgear—Part 5-1:Control circuit devices and switching element—Electromechanical control circuit devices GB/T 16895.1-2008 Low-voltage electrical installations—Part 1:Fundamental principles,assessment of general characteristics,definitions GB/T 17045-2008 Protection against electric shock—Common aspects for installation and equipment GB/T 21210-2016 Starting performance of single-speed three-phase cage induction motors GB/T 21711.1-2008 Electromechanical elementary relays—Part 1:General and safety requirements IEC 60715:2017 IEC 60947-1:2007/A2:2014 IEC 61000-6-2 IEC 61439(所有部分) CISPR 11:2015 CISPR 11:2015/A1:2016 GB 156-2003 Standard voltages GB/T 156-2007 Standard voltages GB/T 156-2017 Standard voltages GB/T 2893.2-2008 Graphical symbols—Safety colours and safety signs—Part 2:Design principles for product safety labels GB/T 2893.2-2020 Graphical symbols—Safety colours and safety signs—Part 2:Design principles for product safety labels GB/T 10194-1997 Varistors for use in electronic equipment Part 2:Sectional specification for surge suppression varistors GB 14536.1-1998 Automatic electrical controls for household and similar use Part 1:General requirements GB/T 14536.1-2008 Automatic electrical controls for household and similar use—Part 1:General requirements GB/T 14536.1-2022 Automatic electrical controls—Part 1:General requirements GB/T 16895.32-2008 Electrical installations of buildings—Part 7-712:Requirements for special installations or locations—Solar photovoltaic (PV) power supply systems GB/T 16895.32-2021 Low voltage electrical installations—Part 7-712:Requirements for special installations or locations—Solar photovoltaic (PV) power supply systems GB 21518-2008 Minimum allowable values of energy efficiency and energy efficiency grades for AC contactors GB 21518-2022 Minimum allowable values of energy efficiency and energy efficiency grades for AC contactors GB/T 32891.1-2016 Rotating electrical machines—Efficiency classes (IE code)—Part 1:Line operated AC motors GB/Z 156-2025 Good practice for dynamic light scattering(DLS) measurements

Adopt standards

IEC 60947-4-1:2018

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