This part of IEC 62271 applies to AC contactors and/or contactor-based controllers and motorstarters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 kV and up to and including 24 kV. This document also includes additional requirements for outdoor installations where the equipment is housed in an additional protective enclosure. It is applicable only to three-pole devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. Contactors and/or starters dealt with in this document typically do not have adequate short-circuit interruption capability. In this context, this document gives requirements for: - starters associated with separate short-circuit protective devices; - controllers - contactors combined with short-circuit protective devices (SCPD). Contactors intended for closing and opening electric circuits and, if combined with suitable relays, for protecting these circuits against operating overloads are covered in this document. This document is also applicable to the operating devices of contactors and to their auxiliary equipment. Motor-starters intended to start and accelerate motors to normal speed, to ensure continuous operation of motors, to switch off the supply from the motor and to provide means for the protection of motors and associated circuits against operating overloads are dealt with. Motor-starter types included are: - direct-on-line starters; - reversing starters; - two-direction starters; - reduced kVA (voltage) starters; - auto-transformer starters; - rheostatic starters; - reactor starters. This document does not apply to: - circuit-breaker-based motor-starters; - single-pole operation of multi-pole contactors or starters; - two-step auto-transformer starters designed for continuous operation in the starting position; - unbalanced rheostatic rotor starters, i.e. where the resistances do not have the same value in all phases; - equipment designed not only for starting, but also for adjustment of speed; - liquid starters and those of the "liquid-vapour" type; - semiconductor contactors and starters making use of semiconductor contactors in the main circuit; - rheostatic stator starters; - contactors or starters designed for special applications. This document does not deal with components contained in contactors and contactor-based motor-starters, for which individual specifications exist. NOTE 1 Thermal electrical relays are covered by IEC 60255-149. NOTE 2 High-voltage current-limiting fuses are covered by IEC 60282-1 and IEC 60644. NOTE 3 Metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV are covered by IEC 62271-200. NOTE 4 Disconnectors and earthing switches are covered by IEC 62271-102. NOTE 5 High-voltage switches above 1 kV and less than 52 kV are covered by IEC 62271-103. The object of this document is to state: a) the characteristics of contactors and starters and associated equipment; b) the conditions with which contactors or starters comply with reference to: 1) their operation and behaviour, 2) their dielectric properties, 3) the degrees of protection provided by their enclosures, where applicable, 4) their construction, 5) for controllers, interactions between the various components, for example SCPD co-ordination; c) the tests intended for confirming that these conditions have been met, and the methods to be adopted for these tests; d) the information to be given with the equipment or in the manufacturer's literature.

  • Standard
    104 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This part of IEC 61439 defines the specific requirements for the power switchgear and
controlgear assembly (abbreviated ‘PSC-assembly’ throughout this document see 3.1.101) as
follows:
• assemblies for which the rated voltage does not exceed 1 000 V AC or 1 500 V DC;
• assemblies designed for a nominal frequency of the incoming supply or supplies not
exceeding 1 000 Hz;
NOTE 1 Frequencies above 1 kHz are considered as high frequencies, see also IEC 60664-1:2007, 5.3.3.2.5
to take into account additional constraints to insulation coordination.
• assemblies intended for indoor and outdoor applications;
• stationary or movable assemblies with or without enclosures;
• assemblies intended for use in connection with the generation, transmission, distribution
and conversion of electrical energy, and for the control of equipment consuming electrical
energy and for associated data processing;
• assemblies designed for use under special service conditions, for example in ships and in
rail vehicles, provided that the other relevant specific requirements are complied with;
NOTE 2 Supplementary requirements for assemblies in ships are covered by IEC 60092-302-2.
This document also applies to assemblies for use in photovoltaic installations, designated as
photovoltaic assemblies (PVA). The particular characteristics, specific service conditions and
the requirements for PVA’s are included in Annexes DD, EE and FF.
This document provides supplementary requirements for PSC-assemblies intended for use as
part of the electrical equipment of machines and can be applied in addition to the
requirements given in IEC 60204-1.
This document applies to all assemblies whether they are designed, manufactured and
verified on a one-off basis or fully standardised and manufactured in quantity.
The manufacture and/or assembly can be carried out by an entity other than the original
manufacturer (see 3.10.1 of IEC 61439-1:2020).
This document does not apply to individual devices, for example, circuit-breakers, fuse
switches and self-contained components such as, motor starters, power electronic converter
systems and equipment (PECS), switch mode power supplies (SMPS), uninterruptable power
supplies (UPS), basic drive modules (BDM), complete drive modules (CDM), adjustable speed
power drives systems (PDS), stand-alone energy storage systems (battery and capacitor
systems), and other electronic equipment which comply with their relevant product standards.
This document describes their integration into a PSC-assembly or an empty enclosure used
as a part of a PSC-assembly.
For some applications, such as, explosive atmospheres, functional safety, there may be a
need to comply with the requirements of other standards or legislation in addition to those
specified in the IEC 61439 series.
This document does not apply to the specific types of assemblies covered by other parts of
IEC 61439. For assemblies not covered by other parts, this part applies.
Unless local legislation details additional requirements, equipment within the scope of this
document, which complies with this document, is deemed to meet essential safety
requirements. This includes fully verified specifier options, for example user choice of
protection against accidental contact with hazardous live parts of IPXXB or IP3XD. Where
special requirements are agreed between the user and manufacturer, that are not fully
specified within this document, for example, (i) part of the assembly is outside the scope of
this document, (ii) exceptional vibration is present at the place of installation, (iii) exceptional
voltage variations occur in service, or (iv) possible adverse effects from sonic or ultrasonic
sources, a risk assessment and/or additional or more severe verifications may be required to
demonstrate that the essential safety requirements have been fulfilled.

  • Standard
    57 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This part of IEC 61439 lays down the general definitions and service conditions, construction
requirements, technical characteristics and verification requirements for low-voltage
switchgear and controlgear assemblies.
NOTE Throughout this document, the term assembly(s) (see 3.1.1) is used for a low-voltage switchgear and
controlgear assembly(s).
For the purpose of determining assembly conformity, the requirements of the relevant part of
the IEC 61439 series, Part 2 onwards, apply together with the cited requirements of this
document. For assemblies not covered by Part 3 onward, Part 2 applies.
This document applies to assemblies only when required by the relevant assembly standard
as follows:
– assemblies for which the rated voltage does not exceed 1 000 V AC or
1 500 V DC;
– assemblies designed for a nominal frequency of the incoming supply or supplies not
exceeding 1 000 Hz;
– assemblies intended for indoor and outdoor applications;
– stationary or movable assemblies with or without an enclosure;
– assemblies intended for use in connection with the generation, transmission, distribution
and conversion of electric energy, and for the control of electrical energy consuming
equipment.
This document does not apply to individual devices and self-contained components such as
motor starters, fuse switches, power electronic converter systems and equipment (PECS),
switch mode power supplies (SMPS), uninterruptable power supplies (UPS), basic drive
modules (BDM), complete drive modules (CDM), adjustable speed power drives systems
(PDS), and other electronic equipment which comply with their relevant product standards.
This document describes the integration of devices and self-contained components into an
assembly or into an empty enclosure forming an assembly.
For some applications involving, for example, explosive atmospheres, functional safety, there
can be a need to comply with the requirements of other standards or legislation in addition to
those specified in the IEC 61439 series.

  • Standard
    164 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    147 pages
    English language
    sale 10% off
    e-Library read for
    1 day

2020-12-03: This AMD will revise Annex ZZ and allow citation of EN 61800-5-1:2007 & its A1:2017

  • Amendment
    4 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 62271-103:2021 is applicable to three-phase, alternating current switches and switch-disconnectors for their switching function, having making and breaking current ratings, for indoor and outdoor installations, for rated voltages above 1 kV up to and including 52 kV and for rated frequencies from 162/3 Hz up to and including 60 Hz. This document is also applicable to single-pole switches used on three-phase systems. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- this document has been aligned with IEC 62271-1:2017 and IEC 62271-102:2018;
- clarifications regarding the behaviour of the switch during breaking tests regarding current interruption and restrikes have been added;
- conditions of the switch after making and breaking tests have been clarified;
- a new informative Annex B intended to provide guidance for the calculation of Ief1 and Ief2 has been added;
- new rules for the combination of 50 Hz and 60 Hz switching tests have been defined and a new table (Table 7) has been added;
- tests with specified TRV have been modified to be in accordance with the practice described in IEC 62271-100;
- the behaviour of the switch during breaking tests has been clarified and boundaries for restrike allowance have been defined;
- explanations for short-circuit making tests have been added;
- vacuum integrity check after mechanical operations has been defined;
- all test voltages for single-phase capacitive testing have been grouped under 7.101.7.3.2 and have been confirmed by simulation and calculation.

  • Standard
    179 pages
    English and French language
    sale 15% off

This part of IEC 60947 series specifies requirements for three-position enabling switches.
These switches are used as components of enabling devices to provide signals that,
a) when activated, allow machine operation to be initiated by a separate start control, and
b) when de-activated,
– initiate a stop function, and
– prevent initiation of machine operation.
NOTE 1 The enabling control function is described in 9.2.3.9 of IEC 60204-1:2016 but the application of threeposition
enabling switches is not limited to a component of the enabling device described in IEC 60204-1.
NOTE 2 This document does not deal with enabling devices.
These switches are intended to be connected to circuits which rated voltage does not exceed
250 V AC 50 Hz/60 Hz or 300 V DC.
EXAMPLE Devices incorporating three-position enabling switches are:
– push-button enabling devices;
– grip actuated enabling devices;
– foot actuated enabling devices.
See Annex A for more typical examples.
This document does not apply to:
– three-position enabling switches for non-electrical control circuits, for example hydraulic,
pneumatic;
– enabling switches without three-position mechanism;
– emergency stop devices (see IEC 60947-5-5).

  • Standard
    29 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 62271-106:2021 applies to AC contactors and/or contactor-based controllers and motor-starters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 kV and up to and including 24 kV. This document also includes additional requirements for outdoor installations where the equipment is housed in an additional protective enclosure.
This second edition cancels and replaces the first edition published in 2011. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
document numbered to correspond to IEC 62271-1 2017.

  • Standard
    100 pages
    English language
    sale 15% off

IEC 60947-9-2:2021 covers internal arc-fault control devices, hereinafter referred to as IACD, which are intended to:
– detect internal arc-faults in low-voltage switchgear and controlgear assemblies, by processing (at a minimum) the optical effect of an internal arc-fault, and
– operate mitigation device (either external or combined) in order to minimize the effects of the internal arc-fault.

  • Standard
    175 pages
    English and French language
    sale 15% off

IEC 60947-6-1:2021 applies to transfer switching equipment (TSE), to be used in power systems for ensuring the continuity of the supply and allowing the energy management of the installation, by transferring a load between power supply sources, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC.
This third edition cancels and replaces the second edition published in 2005, and its Amendment 1:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
– clarification of scope and object;
– clarification of terms and definitions;
– removal of unnecessary definitions;
– modification of characteristics;
– modification of utilization categories definitions;
– introduction of new markings requirements;
– addition of new requirements for clearances and creepage distances;
– addition of new requirements and tests for mechanical and electrical interlocks;
– clarification of transfer sequences;
– modification of requirements for rated short-time withstand currents;
– modification of new requirements for electromagnetic compatibility;
– clarification of performance requirements for CB type TSE, in alignment with requirements stated in IEC 60947-2;
– addition of new test sequence V: Critical load current performance of equipment with DC ratings.

  • Standard
    121 pages
    English and French language
    sale 15% off

This part of IEC 60947 applies to switches, disconnectors, switch-disconnectors and fusecombination
units and their dedicated accessories to be used in distribution circuits and motor
circuits of which the rated voltage does not exceed 1 000 V AC or 1 500 V DC.
NOTE 1 Accessories are interconnecting units, extended terminals, internal coils, auxiliary contacts, motor
operator, etc. offered as options with the basic unit.
This document does not apply to equipment coming within the scope of IEC 60947-2, IEC 60947-4-
1 and IEC 60947-5-1.
Particular requirements for switches, disconnectors, switch-disconnectors and fusecombination
units for use in photovoltaic (PV) DC applications are given in Annex D.
Specific requirements for LV switchgear intended for the connections of aluminium conductors
are given in Annex E.
Guidance on measurement of power loss is provided in Annex F.
This document does not include the additional requirements necessary for electrical
apparatus for explosive gas atmospheres.
NOTE 2 Depending on its design, a switch (or disconnector) can be referred to as "a rotary switch
(disconnector)", "cam-operated switch (disconnector)", "knife-switch (disconnector)", etc.
NOTE 3 In this document, the word "switch" also applies to the apparatus referred to in French as
"commutateurs", intended to modify the connections between several circuits and inter alia to substitute a part of a
circuit for another.
NOTE 4 In general, throughout this document, switches, disconnectors, switch-disconnectors and fusecombination
units will be referred to as "equipment".
The object of this document is to state:
a) the characteristics of the equipment;
b) the conditions that apply to the equipment with reference to:
1) operation and behaviour in normal service;
2) operation and behaviour in case of specified abnormal conditions, e.g. short-circuit;
3) dielectric properties;
c) the tests for confirming that these conditions have been met and the methods that are
adopted for these tests;
d) the information relevant to the marking of the equipment or made available by the
manufacturer, e.g. in the catalogue.
Specific items requiring agreement between the user and the manufacturer are identified in
Annex B.

  • Standard
    99 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This document applies, when required by the relevant product standard, to low-voltage
switchgear and controlgear hereinafter referred to as "equipment" or “device” and intended to
be connected to circuits, the rated voltage of which does not exceed 1 000 V AC or
1 500 V DC.
This document states the general rules and common safety requirements for low-voltage
switchgear and controlgear, including:
− definitions;
− characteristics;
− information supplied with the equipment;
− normal service, mounting and transport conditions, decommissioning and dismantling;
− constructional and performance requirements;
− verification of characteristics and performance;
− energy efficiency aspects (see Annex V);
− environmental aspects.
This document does not apply to:
− low-voltage switchgear and controlgear assemblies which are dealt with in IEC 61439
series, as applicable;
− terminals for connection of aluminium conductors;
NOTE Terminals for aluminium conductors are under consideration for the next revision.
− use within explosive atmospheres (see IEC 60079 series);
− software and firmware requirements for functional safety application (see IEC 61508-3);
− cyber security aspects (see IEC 62443 series).

  • Standard
    292 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Standard
    309 pages
    French language
    sale 10% off
    e-Library read for
    1 day

IEC 60747-14-11:2021(E) defines the terms, definitions, configuration, and test methods can be used to evaluate and determine the performance characteristics of surface acoustic wave-based semiconductor sensors integrated with ultraviolet, illuminance, and temperature sensors. The measurement methods are for DC characteristics and RF characteristics, and the measurement method for RF characteristics includes a direct mode and differential amplifier mode based on feedback oscillation. This document excludes devices dealt with by TC 49: piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection.

  • Standard
    21 pages
    English language
    sale 15% off

IEC 61800-5-3:2021, which is a product standard, specifies requirements and makes recommendations for the design and development, integration and validation of safety-related encoder (Encoder(SR)) in terms of their functional safety considerations, electrical safety and environmental conditions. It applies to Encoder(SR), being sensors as part of a PDS(SR). This document can also be referred to and used for Encoder(SR) in any other safety-related application, for example safety-related position monitoring.
This document is applicable where functional safety of an encoder is claimed and the Encoder(SR) is operating mainly in the high demand or continuous mode. The requirements of IEC 61800-5-2:2016 for PDS(SR) apply to Encoder(SR) as applicable.
This document includes additional or different requirements for Encoder(SR). It sets out safety-related considerations of Encoder(SR) in terms of the framework of IEC 61508 (all parts), and introduces requirements for Encoder(SR) as subsystems of a safety-related system. It is intended to facilitate the realisation of the electrical/electronic/programmable electronic (E/E/PE) and mechanical parts of an Encoder(SR) in relation to the safety performance of safety sub-function(s) of an Encoder(SR).

  • Standard
    215 pages
    English and French language
    sale 15% off

2020-08-05 NEXT ACTION: CCMC action by 2020-08-31
2020-08-03 CCMC to prepare request for BT
2020-08-03 since no 2nd assessment allowed, EC confirmed that TC met requirements for pos. ass.  
2019-02-20 PC: "lack of compliance" for LVD, TC to adress comments
2019-01-30 PC: Sent for LVD assessment
2018-03-22 - missing Annex ZZ - on hold
2017-10-05 - Cannot allocate for publication due to missing assessment from Consultant.

  • Amendment
    15 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC TS 63058:2021 provides guidance to manufacturers of low-voltage switchgear and controlgear and their assemblies in evaluating and improving the environmental impact of their products, and in enabling effective communication using common references for environmental information throughout the supply chain.

  • Technical specification
    112 pages
    English and French language
    sale 15% off

IEC TR 62271-312:2021(E) refers to high-voltage / low-voltage prefabricated substations (hereinafter prefabricated substations) as specified in IEC 62271-202:2014.
This document, among other options as agreed between manufacturer and user, can be used for the transferability of type tests performed on one or more prefabricated substations with a defined set of ratings and arrangement of components to another prefabricated substation with a different set of ratings or different arrangement of components. It supports the selection of appropriate representative test objects for that purpose in order to optimize the type testing procedure for a consistent conformity assessment.
This document utilises a combination of sound technical and physical principles, manufacturer and user experience and mutually agreed upon methods of calculation to establish pragmatic guidance for the transferability of type test results, covering various design and rating aspects.

  • Technical report
    61 pages
    English language
    sale 15% off

IEC 61439-7:2018 defines the specific requirements of assemblies as follows:
- assemblies for which the rated voltage does not exceed 1 000 V in the case of AC or 1 500 V in the case of DC;
– assemblies intended for use in connection with the generation, transmission, distribution and conversion of electric energy, and for the control of electric energy consuming equipment;
– assemblies operated by ordinary persons (e.g. plug and unplug of electrical equipment);
– assemblies intended to be installed and used in market squares, marinas, campsites and other similar outdoor public sites;
– assemblies intended for charging stations for electric vehicles (AEVCS) for Mode 3 and Mode 4. They are designed to integrate the functionality and additional requirements for electric vehicle conductive charging systems according to IEC 61851-1:2017.
This first edition cancels and replaces the relevant technical specification published in 2014. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous technical specification:
    a new classification of the stationary ASSEMBLIES in accordance with their mechanical resistance (5.702);
    a new Table 702 with the list of tests and relevant severities to which the ASSEMBLIES have to be subjected according to the classification mentioned at point a);
    a new Annex (CC) with a new endurance test for the individual switching devices intended to be used in AEVSC, if they have not already been tested against this requirement;
    a general editorial review and a technical revision.
The contents of the corrigendum of August 2019 have been included in this copy.

  • Standard
    45 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 60947-6-2:2020 This document applies to control and protective switching devices (or equipment) (CPS), the main contacts of which are intended to be connected to circuits of rated voltage not exceeding 1 000 V AC or 1 500 V DC.
It covers control and protective switching device (CPS):
which provides protective and control functions for circuits and motors;
where its control function is operated exclusively otherwise than by hand;
which provides continuity of service after over-current conditions; and
which can have additional functions, such as isolation or communication.  This third edition cancels and replaces the second edition published in 2002 and its Amendment 1:2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
editorial changes according to ISO/IEC directives Part 2,
alignments with IEC 60947-1:2020:
markings ("s", "sol", "r" or "f");
constructional requirements including material requirements;
requirements for screwless terminals;
measurement method of the pole impedance;
EMC requirement and testing;
procedure to determine data for electromechanical CPS’s used in functional safety applications;  
harmonisation with IEC 60947-2:2016:
operation tests of under-voltage relays and shunt releases;
CPS for IT systems (Annex G);
coordination with other short-circuit protective devices;    
alignments with IEC 60947-4-1:2018:
test at the rated conditional short-circuit current Iq of protected switching devices;
short-circuit tests harmonisation with North America;
reliability data for functional safety applications (new Annex K);
safety aspects related to electronic circuits and protective impedance (new Annex N);
introduction of provisions covering the impact of higher locked rotor current to achieve high efficiency class;
mention of dedicated wiring accessories;
definitions and measurement method of the power consumption of the control circuit during holding and pick-up operations;
load monitoring indicators (new Annex M).

  • Standard
    225 pages
    English and French language
    sale 15% off

This part of IEC 62271 is applicable to three-pole alternating current switches for rated
voltages higher than 52 kV, having making and breaking current ratings, for indoor and
outdoor installations, and for rated frequencies up to and including 60 Hz.
This document is also applicable to the operating devices of these switches and to their
auxiliary equipment.
NOTE 1 Switches for gas insulated switchgear are covered by this document.
NOTE 2 Switches having a disconnecting function and called switch-disconnectors are also covered by
IEC 62271-102.
NOTE 3 Earthing switches are not covered by this document. Earthing switches forming an integral part of a
switch are covered by IEC 62271-102.
The main object of this document is to establish requirements for switches used in
transmission and distribution systems. General purpose switches for this application are
designed to comply with the following service applications:
– carrying rated continuous current;
– carrying short-circuit currents for a specified time;
– switching of mainly active loads;
– switching of no-load transformers;
– switching of the charging current of unloaded cables, overhead lines or busbars;
– switching of closed-loop circuits;
– making short-circuit currents.
A further object of this document is to establish requirements for limited purpose and special
purpose switches used in transmission and distribution systems.
Limited purpose switches comply with one or more of the service applications indicated above.
Special purpose switches may comply with one or more of the service applications indicated
above and, in addition, are suitable for one or more of the following applications:
– switching single capacitor banks;
– switching back-to-back capacitor banks;
– switching shunt reactors including secondary or tertiary reactors switched from the primary
side of the transformer;
– applications requiring an increased number of operating cycles;
– switching under earth fault conditions in non-effectively earthed neutral systems.

  • Standard
    55 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This part of EN 62271 applies to high-voltage alternating current disconnecting circuit-breakers for operation at frequencies of 50 Hz and 60 Hz on systems having voltages of 72,5 kV and above. This standard identifies which requirements of EN 60694, EN 62271-100 and EN 62271-102 standards are applicable. It also gives the additional requirements specific to these devices. This standard covers a circuit-breaker which, when in the open position, satisfies the requirements of both a circuit-breaker and a disconnector.

  • Standard
    24 pages
    English language
    sale 10% off
    e-Library read for
    1 day

This document provides information, and recommended minimum requirements related to embedded software supporting the main functions of switchgear and controlgear during the whole lifecycle of the equipment. It includes also the parameterization aspects and basics about secure coding standards.

  • Technical report
    30 pages
    English language
    sale 10% off
    e-Library read for
    1 day

The purpose of this document is to define homogeneous categories for the electromagnetic environments in order to harmonize as far as practicable all general rules and product standard requirements of electromagnetic compatibility (EMC), applicable to low-voltage switchgear, controlgear and their assemblies with built-in electronic circuits.

  • Technical report
    37 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 62271-104:2020 is applicable to three-pole alternating current switches for rated voltages higher than 52 kV, having making and breaking current ratings, for indoor and outdoor installations, and for rated frequencies up to and including 60 Hz.
This third edition replaces and cancels the second edition published in 2015. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- new numbering, following IEC 62271-1:2017.

  • Standard
    108 pages
    English and French language
    sale 15% off

IEC 60947-5-8:2020 is available as IEC 60947-5-8:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60947-5-8:2020 specifies requirements for three-position enabling switches. These switches are used as components of enabling devices to provide signals that,
- when activated, allow machine operation to be initiated by a separate start control, and
- when de-activated,
-- initiate a stop function, and
-- prevent initiation of machine operation.
This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- due to the increasing range of useful applications of three-position enabling switches, note of scope, operational characteristics and tests are reviewed;
- figures for example of devices incorporating enabling switch are added in Annex A;
- new Annex B for procedure to determine reliability data for the switch used in functional safety applications is added.

  • Standard
    50 pages
    English and French language
    sale 15% off

IEC 61439-2:2020 defines the specific requirements for the power switchgear and controlgear assembly (abbreviated ‘PSC-assembly’ throughout this document see 3.1.101) as follows:
assemblies for which the rated voltage does not exceed 1 000 V AC or 1 500 V DC;
assemblies designed for a nominal frequency of the incoming supply or supplies not exceeding 1 000 Hz;  NOTE 1 Frequencies above 1 kHz are considered as high frequencies, see also IEC 60664-1:2007, 5.3.3.2.5 to take into account additional constraints to insulation coordination.
assemblies intended for indoor and outdoor applications;
stationary or movable assemblies with or without enclosures;
assemblies intended for use in connection with the generation, transmission, distribution and conversion of electrical energy, and for the control of equipment consuming electrical energy and for associated data processing;
assemblies designed for use under special service conditions, for example in ships and in rail vehicles, provided that the other relevant specific requirements are complied with;  NOTE 2 Supplementary requirements for assemblies in ships are covered by IEC 60092-302-2.
This third edition cancels and replaces the second edition published in 2011. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:  
addition of Annexes DD, EE and FF for assemblies for use in photovoltaic installation;
clarification of the requirements for forms of internal separation and the addition of the requirement, when the form of separation is higher than 1, all parts within the functional unit compartment that remain live when the functional unit is switched off shall be protected to at least IPXXB;
alignment with the structure of IEC 61439-1:2020;
addition of temperature-rise verification for; (i) temperature-rise verification of assemblies with natural cooling and circuits rated above 1 600 A by a combination of comparison with a reference design and calculation, and; (ii) temperature-rise verification of assemblies with active cooling and rated currents up to 1 600 A.
consideration of IP with active cooling.

  • Standard
    51 pages
    English language
    sale 15% off
  • Standard
    103 pages
    English and French language
    sale 15% off

IEC 60947-4-3:2020(E) applies to semiconductor controllers and semiconductor contactors for non-motor load intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V AC.
It covers their use:
– for operations of changing the state of AC electric circuits between the ON-state and the OFF-state;
– with or without bypass switching devices;
– as controller, for reducing the amplitude of the RMS AC voltage.
This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) scope exclusions;
b) editorial correction of notes and hanging paragraphs;
c) safety aspects related to:
- general aspects;
- limited energy circuits;
- electronic circuits;
d) mention of dedicated wiring accessories;
e) power consumption measurement;
f) alignment to IEC 60947-1:2020;
g) alignment with IEC 60947-4-2 when appropriate.

  • Standard
    88 pages
    English language
    sale 15% off

IEC 62271-108:2020 applies to high-voltage alternating current disconnecting circuit-breakers for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV.
This second edition cancels and replaces the first edition published in 2005. This edition contains the following significant technical changes with respect to the previous edition:
- The document has been restructured according to IEC 62271-1:2017.
- The document has been adapted to some of the changes introduced in IEC 62271-100:–[1].
- The document has been adapted to some of the changes introduced in IEC 62271-102:2018.
- References have been reviewed and updated.
- Some definitions have been reviewed and adapted to the latest IEV editions.
- Rated static terminal load and static terminal load test have been removed and a design requirement for static mechanical loads has been included.
- Additional type tests for auxiliary and control circuits have been included.
- X-radiation test procedure for vacuum interrupters has been included.
- Type test for testing of interlocking device and type test for testing of temporary mechanical locking devices have been included.
- Special requirements for making and breaking tests on class E2 disconnecting circuit-breakers have been removed.
[1] Under preparation. Stage at the time of publication: IEC CDV 62271-100:2020.

  • Standard
    42 pages
    English and French language
    sale 15% off

IEC 60947-4-2:2020 applies to semiconductor motor controllers, starters and soft-starters which can include a series mechanical switching device, intended to be connected to circuits the rated voltage of which does not exceed 1 000 V AC.
This fourth edition cancels and replaces the third edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- scope exclusions;
- editorial correction of notes and hanging paragraphs;
- reference to IEC 62683-1;
- safety aspects related to:
- general aspects;
- limited energy circuits;
- electronic circuits;
- mention of dedicated wiring accessories;
- power consumption measurement;
- alignment to IEC 60947-1:2020.

  • Standard
    230 pages
    English and French language
    sale 15% off

IEC 61439-1:2020 is available as IEC 61439-1:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61439-1:2020 lays down the general definitions and service conditions, construction requirements, technical characteristics and verification requirements for low-voltage switchgear and controlgear assemblies. NOTE Throughout this document, the term assembly(s) (see 3.1.1) is used for a low-voltage switchgear and controlgear assembly(s). For the purpose of determining assembly conformity, the requirements of the relevant part of the IEC 61439 series, Part 2 onwards, apply together with the cited requirements of this document. For assemblies not covered by Part 3 onward, Part 2 applies. This third edition cancels and replaces the second edition published in 2011. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) clarification that power electric converter systems, switch mode power supplies, uninterruptable power supplies and adjustable speed power drive systems are tested to their particular products standard, but when they are incorporated in assemblies the incorporation is in accordance with the IEC 61439 series of standards;
b) introduction of a group rated current for circuits within a loaded assembly and the refocusing of temperature-rise verification on this new characteristic;
c) addition of requirements in respect of DC;
d) introduction of the concept of class I and class II assemblies regarding protection against electric shock.

  • Standard
    321 pages
    English and French language
    sale 15% off

IEC TS 63107:2020 states requirements for integration and testing of IAMS in low-voltage switchgear and controlgear assemblies – power switchgear and controlgear assemblies according to IEC 61439-1 and IEC 61439-2 (PSC-assemblies) to demonstrate their correct operation.
This document does not address personnel safety or damage to the PSC-assembly. These requirements are dealt with in IEC TR 61641 (see also 10.10.1).

  • Technical specification
    79 pages
    English and French language
    sale 15% off

IEC 60947-3:2020 applies to switches, disconnectors, switch-disconnectors and fuse-combination units and their dedicated accessories to be used in distribution circuits and motor circuits of which the rated voltage does not exceed 1 000 V AC or 1 500 V DC.
This fourth edition cancels and replaces the third edition published in 2008, Amendment 1:2012 and Amendment 2:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
addition of critical load current tests for DC switches (see 9.3.9);
addition of requirements for a conditional short-circuit rating for disconnectors, switches, and switch-disconnectors protected by circuit-breakers (see 9.3.7.2);
addition of new categories for high-efficiency motors switching (see Annex A);
addition of new Annex E for connection to aluminium conductors;
addition of new Annex F for power losses measurement.

  • Standard
    190 pages
    English and French language
    sale 15% off

IEC 60947-1:2020 applies, when required by the relevant product standard, to low-voltage switchgear and controlgear hereinafter referred to as "equipment" or “device” and intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC.
This document states the general rules and common safety requirements for low-voltage switchgear and controlgear, including:
- definitions;
- characteristics;
- information supplied with the equipment;
- normal service, mounting and transport conditions, decommissioning and dismantling;
- constructional and performance requirements;
- verification of characteristics and performance;
- energy efficiency aspects (see Annex V);
- environmental aspects.
This sixth edition cancels and replaces the fifth edition published in 2007, Amendment 1:2010 and Amendment 2:2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
– DC values testing improvement;
– update of EMC tests;
– Annex B deletion;
– update of requirements for environmental tests (Table Q.1);
– improvement of Annex R (new examples);
– deletion of digital input Type 2, and introduction of Type 3 in Annex S;
– example for materials declaration (Annex W);
– new Annex X (co-ordination between short-circuit protective devices associated in the same circuit) created.

  • Standard
    577 pages
    English and French language
    sale 15% off

EN-IEC 60947-5-2 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. Products covered by the scope of this document are not subjected to defined behaviours under fault conditions. Proximity switches with defined behaviour are covered by IEC 60947-5-3 and have to fulfil additional requirements. These proximity switches are self-contained, have semiconductor switching element(s) and are intended to be connected to circuits, the rated voltage of which does not exceed 250 V 50 Hz/60 Hz AC RMS or 300 V DC. Examples of typical applications for in-scope products: - factory automation and machinery industry; - logistic and packaging industry; - conveyor belts, lifts; - process industry; - power plants. Special applications (e.g. corrosive atmosphere) can cause additional requirements. This document is not intended to cover proximity switches with analogue outputs. The object of this document is to state for proximity switches: - definitions; - classification; - characteristics; - product information; - normal service, mounting and transport conditions; - constructional and performance requirements; - tests to verify rated characteristics. Products covered by the scope of this document are expected to be selected, installed, and maintained by skilled personnel only.

  • Standard
    137 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 60947-5-2:2019 applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. This fourth edition cancels and replaces the third edition published in 2007 and Amendment 1:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  update of the scope; adaptation and update of the construction requirements according to IEC Guide 116 (e.g. material requirements, artificial optical radiation, instruction requirements, hot surface, unattended operation, foreseeable misuse…); modification of the specifications concerning the sensing range and operating distance; new definitions for photoelectric proximity switch type D with background suppression; integration of the requirements and test procedures of photoelectric proximity switch type D with background suppression; update of EMC requirements in Table 9 and Table 10; integration of environmental information requirements and environmental condition by referencing Annexes O, W and Q of IEC 60947-1:2007, IEC 60947-1:2007/AMD1:2010 and IEC 60947-1:2007/AMD2:2014; modification of impulse withstand voltage test (5.3.1.3, 9.3.3.4.5); modification of the references in the (normative) standard body to the (informative) Annex A; major update of Annex A (definitions update, new dimensions and shapes); update of C.9.1.1; update of Annex D in order to consider new connector types and normative references; update of Annex F (additional symbols for photoelectric proximity switches).

  • Standard
    137 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC TS 63208:2020 applies to the security related main functions of switchgear and controlgear during the whole lifecycle of the equipment. It is applicable to wired and wireless data communication means and the physical accessibility to the equipment, within its limits of environmental conditions.
This document is intended to develop awareness about security aspects and provides recommendations and requirements on the appropriate countermeasures against vulnerability to threats.

  • Technical specification
    46 pages
    English language
    sale 15% off

IEC 61000-4-36:2020 is available as IEC 61000-4-36:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61000-4-36:2020 provides methods to determine test levels for the assessment of the immunity of equipment and systems to intentional electromagnetic interference (IEMI) sources. It introduces the general IEMI problem, IEMI source parameters, derivation of test limits and summarises practical test methods. This second edition cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- addition of a hyperband and mesoband radiated transients immunity test method in
- Annex H;
- addition of a calibration method of sensors for radiated hyperband and mesoband transient fields and measurement uncertainty in Annex I.

  • Standard
    108 pages
    English language
    sale 15% off

2020-11-24: EC formal rejection for citation under EMCD
2019-11-13: D164/C065: BT approved the Annex ZA and Annexes ZZ for LVD and EMC and asked CCMC to make the standard available without further delay with the inclusion of the approves Annexes.

  • Amendment
    129 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 62026-3:2014 specifies an interface system between single or multiple controllers, and control circuit devices or switching elements. The interface system uses two conductor pairs within one cable - one of these pairs provides a differential communication medium and the other pair provides power to the devices. This part establishes requirements for the interoperability of components with such interfaces. This third edition of IEC 62026-3 cancels and replaces the second edition published in 2008. This third edition constitutes a technical revision. The main changes with respect to the previous edition are the followings:
- specification of group 4 messages (5.1.2);
- clarifications on messaging protocol (5.2);
- addition of I/O multicast poll messages (5.5.2 and 5.5.8);
- clarifications on slave behaviour (5.5.4 and 5.5.9);
- clarifications on physical layer (transceiver) in 5.7;
- miscellaneous corrections/clarifications on cable (8.2);
- clarifications on EMC testing (9.2.10) and logical testing (9.3).

  • Amendment
    4 pages
    English language
    sale 10% off
    e-Library read for
    1 day

2018-06-07: assessment requested on CD - HAS consultant comments to be addressed before CDV

  • Amendment
    11 pages
    English language
    sale 10% off
    e-Library read for
    1 day

2020-11-24: EC formal rejection for citation under EMCD
2019-11-13: D164/C065: BT approved the Annex ZA and Annexes ZZ for LVD and EMC and asked CCMC to make the standard available without further delay with the inclusion of the approves Annexes.

  • Amendment
    129 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC 62026-3:2014 specifies an interface system between single or multiple controllers, and control circuit devices or switching elements. The interface system uses two conductor pairs within one cable - one of these pairs provides a differential communication medium and the other pair provides power to the devices. This part establishes requirements for the interoperability of components with such interfaces. This third edition of IEC 62026-3 cancels and replaces the second edition published in 2008. This third edition constitutes a technical revision. The main changes with respect to the previous edition are the followings: - specification of group 4 messages (5.1.2); - clarifications on messaging protocol (5.2); - addition of I/O multicast poll messages (5.5.2 and 5.5.8); - clarifications on slave behaviour (5.5.4 and 5.5.9); - clarifications on physical layer (transceiver) in 5.7; - miscellaneous corrections/clarifications on cable (8.2); - clarifications on EMC testing (9.2.10) and logical testing (9.3).

  • Amendment
    4 pages
    English language
    sale 10% off
    e-Library read for
    1 day

IEC TR 63196:2020 is following the principles of IEC Guide 119. This document defines the energy efficiency aspects of switchgear and controlgear products complying with IEC 60947 (all parts), IEC 61095 and IEC 62626 (all parts), and associated assemblies complying with IEC 61439 (all parts), in the context of the overall system energy efficiency. This document references energy policy aspects, as well as product and system aspects.

  • Technical report
    22 pages
    English language
    sale 15% off

IEC TR 63216:2019 is to define homogeneous categories for the electromagnetic environments in order to harmonize as far as practicable all general rules and product standard requirements of electromagnetic compatibility (EMC), applicable to low-voltage switchgear, controlgear and their assemblies with built-in electronic circuits.
This document also addresses incorporated radiocommunication functions.
The typical application environments for such equipment include the electrical distribution in infrastructure, commercial and industrial buildings and the control systems of machinery, including motor-driven systems.
The primary intention of EMC requirements is to ensure the safe and reliable operation of the equipment, as well as the communication efficiency of the radiocommunication equipment within their intended environments.

  • Technical report
    32 pages
    English language
    sale 15% off