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  • IEC 60364-4-43:2008

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  19-07-2023

    Language(s): 

    Published date:  13-08-2008

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    43 Protection against overcurrent
        430.1 Scope
        430.2 Normative references
        430.3 General requirements
    431 Requirements according to the nature of the circuits
        431.1 Protection of line conductors
        431.2 Protection of the neutral conductor
        431.3 Disconnection and reconnection of the neutral conductor
              in multi-phase systems
    432 Nature of protective devices
        432.1 Devices providing protection against both overload
              current and short-circuit current
        432.2 Devices ensuring protection against overload current only
        432.3 Devices ensuring protection against short-circuit
              current only
        432.4 Characteristics of protective devices
    433 Protection against overload current
        433.1 Coordination between conductors and overload protective
              devices
        433.2 Position of devices for overload protection
        433.3 Omission of devices for protection against overload
        433.4 Overload protection of conductors in parallel
    434 Protection against short-circuit currents
        434.1 Determination of prospective short-circuit currents
        434.2 Position of devices for short-circuit protection
        434.3 Omission of devices for protection against short-circuit
        434.4 Short-circuit protection of conductors in parallel
        434.5 Characteristics of short-circuit protective devices
    435 Coordination of overload and short-circuit protection
        435.1 Protection afforded by one device
        435.2 Protection afforded by separate devices
    436 Limitation of overcurrent by characteristics of supply
    Annex A (informative) Protection of conductors in parallel against
                          overcurrent
    Annex B (informative) Conditions 1 and 2 of 433.1
    Annex C (informative) Position or omission of devices for
                          overload protection
    Annex D (informative) Position or omission of devices for
                          short-circuit protection
    Annex E (informative) List of notes concerning certain countries
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60364-4-43:2008 provides requirements for the protection of live conductors from the effects of overcurrents. IEC 60364-4-43:2008 describes how live conductors are protected by one or more devices for the automatic disconnection of the supply in the event of overload (Clause 433) and short-circuit (Clause 434) except in cases where the overcurrent is limited in accordance with Clause 436 or where the conditions described in 433.3 (omission of devices for protection against overload) or 434.3 (omission of devices for protection against short-circuit) are met. Coordination of overload protection and short-circuit protection is also covered (Clause 435). This third edition cancels and replaces the second edition, published in 2001, and constitutes a technical revision. The main changes with respect to the previous edition are:
    - Introduction of new informative Annexes B, C and D.
    - Information concerning flexible cables added to Scope.
    - Requirements added for overload detection for the neutral conductor for harmonic currents.
    - Requirement that devices for protection against short-circuit current be capable of making as well as breaking short-circuit current added.
    - Information added to clarify protection against overload current.
    - Requirements where devices for protection against overload need not be provided expanded.
    - Requirements where devices for protection against short-circuit need not be provided expanded.
    - Requirements for short-circuit current ratings of busbar trunking systems added.The contents of the corrigendum of October 2008 have been included in this copy.

    General Product Information - (Show below) - (Hide below)

    Committee TC 64
    Development Note Supersedes IEC 60364-4-473 (01/2002) Supersedes and renumbers IEC 364-4-43 (07/2004) Stability Date: 2018. (10/2012)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By
    Supersedes

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    I.S. HD 384.6.61 S2:2003 ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 6-61: VERIFICATION - INITIAL VERIFICATION
    BS EN ISO 17409:2017 ELECTRICALLY PROPELLED ROAD VEHICLES - CONNECTION TO AN EXTERNAL ELECTRIC POWER SUPPLY - SAFETY REQUIREMENTS (ISO 17409:2015)
    DD CLC/TS 50457-1:2008 CONDUCTIVE CHARGING FOR ELECTRIC VEHICLES - PART 1: D.C. CHARGING STATION
    HD 60364-5-56:2010/A12:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-56: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SAFETY SERVICES
    PREN 1648-1 : DRAFT 2017 LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: CARAVANS
    BS EN 60950-22:2017 Information technology equipment. Safety Equipment to be installed outdoors
    I.S. EN 15869-2:2010 INLAND NAVIGATION VESSELS - ELECTRICAL SHORE CONNECTION, THREE PHASE CURRENT 400 V, UP TO 63 A, 50 HZ - PART 2: ONSHORE UNIT, SAFETY REQUIREMENTS
    15/30321124 DC : 0 BS EN 60364-4-41 ED 5.0 /A1 - LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-41: PROTECTION FOR SAFETY - PROTECTION AGAINST ELECTRIC SHOCK
    S.R. HD 60364-5-53:2015 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    I.S. HD 60364-5-54:2011 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-54: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS
    ISO 14990-1:2016 Earth-moving machinery Electrical safety of machines utilizing electric drives and related components and systems Part 1: General requirements
    I.S. EN 60950-22:2017 INFORMATION TECHNOLOGY EQUIPMENT - SAFETY - PART 22: EQUIPMENT TO BE INSTALLED OUTDOORS
    CEI 103-1/12 : 2001 PRIVATE TELEPHONE EXCHANGES - PART 12: PROTECTION OF THE PRIVATE TELEPHONE EXCHANGES
    S.R. HD 60364-5-559:2012 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-559: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - LUMINAIRES AND LIGHTING INSTALLATIONS
    I.S. HD 60364-5-534:2008 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - ISOLATION, SWITCHING AND CONTROL - CLAUSE 534: DEVICES FOR PROTECTION AGAINST OVERVOLTAGES
    S.R. HD 60364-5-54:2011 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-54: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS
    S.R. HD 60364-5-52:2011 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-52: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - WIRING SYSTEMS
    UNI EN 1648-1 : 2012 LEISURE ACCOMMODATION VEHICLES - 12 V DIRECT CURRENT EXTRA LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: CARAVANS
    UNE-EN 60947-7-3:2011 Low-voltage switchgear and controlgear -- Part 7-3: Ancillary equipment - Safety requirements for fuse terminal blocks
    IEC 61024-1-2:1998 Protection of structures against lightning - Part 1-2: General principles - Guide B - Design, installation, maintenance and inspection of lightning protection systems
    I.S. HD 60364-6:2007 LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 6: VERIFICATION
    IEC 60364-5-54:2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
    I.S. HD 60364-5-551:2010 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-55: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - OTHER EQUIPMENT - CLAUSE 551: LOW-VOLTAGE GENERATING SETS
    I.S. HD 60364-7-708:2009 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-708: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - CARAVAN PARKS, CAMPING PARKS AND SIMILAR LOCATIONS
    IEC 60364-5-523:1999 Electrical installations of buildings - Part 5: Selection and erection of electrical equipment - Section 523: Current-carrying capacities in wiring systems
    IEC 60364-6-61:2001 Electrical installations of buildings - Part 6-61: Verification - Initial verification
    S.R. CLC/TR 50480:2011 DETERMINATION OF CROSS-SECTIONAL AREA OF CONDUCTORS AND SELECTION OF PROTECTIVE DEVICES
    IEC 60364-7-715:2011 Low-voltage electrical installations - Part 7-715: Requirements for special installations or locations - Extra-low-voltage lighting installations
    BS EN 15869-2:2010 INLAND NAVIGATION VESSELS - ELECTRICAL SHORE CONNECTION, THREE PHASE CURRENT 400 V, UP TO 63 A, 50 HZ - PART 2: ONSHORE UNIT, SAFETY REQUIREMENTS
    BS PD88-5(2010) : 2010 LOW-VOLTAGE FUSES - PART 5: GUIDANCE FOR THE APPLICATION OF LOW-VOLTAGE FUSES
    07/30169755 DC : 0 BS EN 60364-5-53 - LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - PROTECTION, ISOLATION, SWITCHING, CONTROL AND MONITORING
    BS EN 50090-2-2 : 1997 HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) - PART 2-2: SYSTEM OVERVIEW - GENERAL TECHNICAL REQUIREMENTS
    14/30238347 DC : 0 BS EN 60204-1 ED 6.0 - SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 1: GENERAL REQUIREMENTS
    08/30195018 DC : DRAFT DEC 2008 BS EN 60204-33 - SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 33: REQUIREMENTS FOR SEMICONDUCTOR FABRICATION EQUIPMENT
    PD CLC/TR 50480:2011 Determination of cross-sectional area of conductors and selection of protective devices
    00/246907 DC : DRAFT DEC 2000 BS EN 61980-1 - ELECTRICAL - ELECTRIC VEHICLE INDUCTIVE CHARGING SYSTEMS - PART 1: GENERAL REQUIREMENTS
    UNE-EN 61009-1:2013 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) - Part 1: General rules
    IEC 60947-7-3:2009 Low-voltage switchgear and controlgear - Part 7-3: Ancillary equipment - Safety requirements for fuse terminal blocks
    IEC TS 61439-7:2014 Low-voltage switchgear and controlgear assemblies - Part 7: Assemblies for specific applications such as marinas, camping sites, market squares, electric vehicles charging stations
    IEC 60950-22:2016 Information technology equipment - Safety - Part 22: Equipment to be installed outdoors
    ISO 22734-2:2011 Hydrogen generators using water electrolysis process Part 2: Residential applications
    11/30232911 DC : 0 BS ISO 13577-1 - INDUSTRIAL FURNACES AND ASSOCIATED PROCESSING EQUIPMENT - SAFETY - PART 1: GENERAL REQUIREMENTS
    BS ISO 14990-1:2016 Earth-moving machinery. Electrical safety of machines utilizing electric drives and related components and systems General requirements
    IEC TR 62368-2:2015 Audio/video, information and communication technology equipment - Part 2: Explanatory information related to IEC 62368-1
    BS EN 60204-33:2011 SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 33: REQUIREMENTS FOR SEMICONDUCTOR FABRICATION EQUIPMENT
    BS EN 61009-1 : 2012 RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS WITH INTEGRAL OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR USES (RCBOS) - PART 1: GENERAL RULES
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    98/203095 DC : DRAFT JULY 1998 PRENV 50275-2-3 - CONDUCTIVE CHARGING FOR ELECTRIC VEHICLES - PART 2-3: D.C. CHARGING STATION
    09/30150663 DC : 0 BS ISO 22734-2 - HYDROGEN GENERATORS USING WATER ELECTROLYSIS PROCESS - PART 2: RESIDENTIAL APPLICATIONS
    BS ISO 22734-2:2011 Hydrogen generators using water electrolysis process Residential applications
    07/30153021 DC : 0 BS IEC 60204-33 - SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 33: REQUIREMENTS FOR SEMICONDUCTOR FABRICATION EQUIPMENT
    EN 746-2:2010 Industrial thermoprocessing equipment - Part 2: Safety requirements for combustion and fuel handling systems
    EN 746-1:1997+A1:2009 Industrial thermoprocessing equipment - Part 1: Common safety requirements for industrial thermoprocessing equipment
    EN 15869-2:2010 Inland navigation vessels - Electrical shore connection, three phase current 400 V, up to 63 A, 50 Hz - Part 2: Onshore unit, safety requirements
    EN ISO 16230-1:2015 Agricultural machinery and tractors - Safety of higher voltage electrical and electronic components and systems - Part 1: General requirements (ISO 16230-1:2015)
    EN 1648-1:2018 Leisure accommodation vehicles - 12 V direct current extra low voltage electrical installations - Part 1: Caravans
    EN 1648-2:2018 Leisure accommodation vehicles - 12 V direct current extra low voltage electrical installations - Part 2: Motor caravans
    I.S. EN 61009-1:2012 RESIDUAL CURRENT OPERATED CIRCUIT-BREAKERS WITH INTEGRAL OVERCURRENT PROTECTION FOR HOUSEHOLD AND SIMILAR USES (RCBOS) - PART 1: GENERAL RULES
    EN 61851-22:2002 Electric vehicle conductive charging system - Part 22: AC electric vehicle charging station
    CEI EN 60519-7 : 2010 SAFETY IN ELECTROHEAT INSTALLATIONS - PART 7: PARTICULAR REQUIREMENTS FOR INSTALLATIONS WITH ELECTRON GUNS
    HD 60364-4-41:2017/A11:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-41: PROTECTION FOR SAFETY - PROTECTION AGAINST ELECTRIC SHOCK
    06/30145325 DC : DRAFT JUN 2006 IEC 60519-7 - SAFETY IN ELECTROHEAT INSTALLATIONS - PART 7: PARTICULAR REQUIREMENTS FOR INSTALLATIONS WITH ELECTRON GUNS
    IEC 60364-6:2016 Low voltage electrical installations - Part 6: Verification
    I.S. HD 60364-7-709:2009 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-709: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - MARINAS AND SIMILAR LOCATIONS (IEC 60364-7-709:2007 (MOD))
    CAN/CSA-C22.2 NO. 60947-7-3:17 Low-voltage switchgear and controlgear ? Part 7-3: Ancillary equipment ? Safety requirements for fuse terminal blocks (Trinational standard NMX-J-538/7-3-ANCE with UL 60947-7-3)
    I.S. EN 60519-7:2008 SAFETY IN ELECTROHEAT INSTALLATIONS - PART 7: PARTICULAR REQUIREMENTS FOR INSTALLATIONS WITH ELECTRON GUNS
    IEC 60364-4-42:2010+AMD1:2014 CSV Low-voltage electrical installations - Part 4-42: Protection forsafety - Protection against thermal effects
    IEC 60364-7-712 REDLINE : 2ED 2017 LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-712: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - SOLAR PHOTOVOLTAIC (PV) POWER SUPPLY SYSTEMS
    HD 50573-5-57:2014 Co-ordination of electrical equipment for protection, isolation, switching and control
    ISO 13577-1:2016 Industrial furnaces and associated processing equipment Safety Part 1: General requirements
    IEC 60364-5-56:2009 Low-voltage electrical installations - Part 5-56: Selection and erection of electrical equipment - Safety services
    I.S. EN 60204-33:2011 SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 33: REQUIREMENTS FOR SEMICONDUCTOR FABRICATION EQUIPMENT
    IEC TS 62257-5:2015 Recommendations for renewable energy and hybrid systems for rural electrification - Part 5: Protection against electrical hazards
    ISO 17409:2015 Electrically propelled road vehicles Connection to an external electric power supply Safety requirements
    BS ISO 22734-1:2008 Hydrogen generators using water electrolysis process Industrial and commercial applications
    BS PD IEC TR 60269-5 : 2010 LOW-VOLTAGE FUSES - PART 5: GUIDANCE FOR THE APPLICATION OF LOW-VOLTAGE FUSES
    02/203840 DC : DRAFT MAY 2002 IEC 60204-1/ED.5.0 - SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 1: GENERAL REQUIREMENTS
    07/30091745 DC : 0 BS IEC 62368 - AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - SAFETY - REQUIREMENTS
    IEC 60204-32:2008 Safety of machinery - Electrical equipment of machines - Part 32: Requirements for hoisting machines
    08/30182293 DC : 0 BS EN 746-3:1997/A1 - INDUSTRIAL THERMOPROCESSING EQUIPMENT - PART 3: SAFETY REQUIREMENTS FOR THE GENERATION AND USE OF ATMOSPHERE GASES
    ISO 22734-1:2008 Hydrogen generators using water electrolysis process Part 1: Industrial and commercial applications
    01/219359 DC : DRAFT JUNE 2001 IEC 60364-6-61/A3 ED.1 - ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 6-61: VERIFICATION - INITIAL VERIFICATION
    EN ISO 17409:2017 Electrically propelled road vehicles - Connection to an external electric power supply - Safety requirements (ISO 17409:2015, Corrected version 2015-12-15)
    07/30170388 DC : 0 BS EN 60364-5-54 - LOW VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-54: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS, PROTECTIVE CONDUCTORS AND PROTECTIVE BONDING CONDUCTORS
    BS EN 60204-1 : 2006 SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 1: GENERAL REQUIREMENTS
    PD IEC/TS 62257-5:2015 Recommendations for renewable energy and hybrid systems for rural electrification Protection against electrical hazards
    BS EN 60204-32:2008 Safety of machinery. Electrical equipment of machines Requirements for hoisting machines
    IEC 60519-7:2008 Safety in electroheat installations - Part 7: Particular requirements for installations with electron guns
    BS EN 60654-2:1998 OPERATING CONDITIONS FOR INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL EQUIPMENT - PART 2: POWER
    HD 60364-5-53:2015/A11:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    UNE-ISO 22734-1:2012 Hydrogen generators using water electrolysis process. Part 1: Industrial and commercial applications
    CLC/TR 50480:2011 Determination of cross-sectional area of conductors and selection of protective devices
    EN 50090-2-2:1996/A2:2007 HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) - PART 2-2: SYSTEM OVERVIEW - GENERAL TECHNICAL REQUIREMENTS
    IEC 60364-7-712:2017 RLV Low voltage electrical installations - Part 7-712: Requirements for special installations or locations - Solar photovoltaic (PV) power supply systems
    HD 60364-6:2016/AC:2017-11 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 6: VERIFICATION (IEC 60364-6:2016/COR1:2017)
    HD 60364-7-715:2012/A11:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 7-715: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - EXTRA-LOW-VOLTAGE LIGHTING INSTALLATIONS
    EN 60204-32:2008 Safety of machinery - Electrical equipment of machines - Part 32: Requirements for hoisting machines
    HD 384.5.523 : 200S2 ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 5: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - SECTION 523: CURRENT-CARRYING CAPACITIES IN WIRING SYSTEMS
    EN 60204-33:2011 Safety of machinery - Electrical equipment of machines - Part 33: Requirements for semiconductor fabrication equipment
    HD 60364-5-551:2010/A11:2016 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-55: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - OTHER EQUIPMENT - CLAUSE 551: LOW-VOLTAGE GENERATING SETS
    CLC/TS 61643-12 : 2009 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 12: SURGE PROTECTIVE DEVICES CONNECTED TO LOW-VOLTAGE POWER DISTRIBUTION SYSTEMS - SELECTION AND APPLICATION PRINCIPLES
    IEC 60950-22:2016 RLV Information technology equipment - Safety - Part 22: Equipment to be installed outdoors
    HD 384.6.61 : 200S2 ELECTRICAL INSTALLATIONS OF BUILDINGS - VERIFICATION - INITIAL VERIFICATION

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60287-1-3:2002 Electric cables - Calculation of the current rating - Part 1-3: Current rating equations (100 % load factor) and calculation of losses - Current sharing between parallel single-core cables and calculation of circulating current losses
    IEC 60364-5-54:2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
    IEC 60947-6-2:2002+AMD1:2007 CSV Low-voltage switchgear and controlgear - Part 6-2: Multiple function equipment - Control and protective switching devices (or equipment) (CPS)
    IEC 60269-4:2009+AMD1:2012+AMD2:2016 CSV Low-voltage fuses - Part 4: Supplementary requirements forfuse-links for the protection of semiconductor devices
    IEC 60724:2000+AMD1:2008 CSV Short-circuit temperature limits of electric cables with rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV)
    IEC 60947-4-1:2009+AMD1:2012 CSV Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
    IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    IEC 60439-2:2000+AMD1:2005 CSV Low-voltage switchgear and controlgear assemblies - Part 2: Particular requirements for busbar trunking systems (busways)
    IEC 60269-2:2013+AMD1:2016 CSV Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K
    IEC 60269-1:2006+AMD1:2009+AMD2:2014 CSV Low-voltage fuses - Part 1: General requirements
    IEC 60269-3:2010+AMD1:2013 CSV Low-voltage fuses - Part 3: Supplementary requirements for fuses foruse by unskilled persons (fuses mainly for household or similar applications) - Examples of standardized systems of fuses A to F
    IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV Low-voltage switchgear and controlgear - Part 1: General rules
    IEC 61557-9:2014 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems
    IEC 60947-3:2008+AMD1:2012+AMD2:2015 CSV Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
    IEC 60947-2:2016 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
    IEC 60364-5-52:2009 Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems
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