SIST EN 60309-1:2000/A1:2008

Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements

Applies to plugs and socket-outlets, cable couplers and appliance couplers, with a rated operating voltage not exceeding 690 V d.c. or a.c. and 500 Hz a.c. and a rated current not exceeding 250 A, primarily intended for industrial use, either indoors or outdoors. The list of preferred ratings is not intended to exclude other ratings, requirements for which are under consideration. This European Standard applies to Series I products only. Series II products are not allowed and not suitable for use in Europe: reference and requirements for Series II products are reported in this standard for information only and shall be ignored. This European Standard applies to products intended to be used with cables with metric sizes (mm2) only. Reference and requirements to AWG and MCM cables are present in the relevant IEC publication and they are reported in this standard for information only. See Annex ZB for a list of references to Series II and/or AWG/MCM cable which are excluded from this standard.

Stecker, Steckdosen und Kupplungen für industrielle Anwendungen -- Teil 1: Allgemeine Anforderungen

Prises de courant pour usages industriels -- Partie 1: Règles générales

Le contenu du corrigendum de mai 2014 a été pris en considération dans cet exemplaire.

Vtiči, vtičnice in spojni elementi za industrijsko rabo - 1. del: Splošne zahteve (IEC 60309-1:1999/A1:2005 spremenjen)

Standard se uporablja za vtiče in vtičnice, spojke kablov in aparatov z nazivno obratovalno napetostjo, ki ne presega 690 V enosmerne ali izmenične napetosti in frekvence 500 Hz, ter nazivnim tokom, ki ne presega 250 A, namenjene predvsem za industrijsko uporabo v notranjih prostorih ali na prostem. Seznam prednostnih nazivnih vrednosti ni namenjen izključitvi drugih nazivnih vrednosti, pri čemer so zahteve zanje v obravnavi. Ta evropski standard se uporablja samo za izdelke skupine I. Izdelki skupine II niso dovoljeni in niso primerni za uporabo v Evropi: sklicevanje in zahteve za izdelke skupine II so v tem standardu navedeni zgolj informativno in jih je treba prezreti. Ta evropski standard se uporablja samo za izdelke, ki so namenjeni uporabi s kabli z metričnimi velikostmi (mm2). Sklicevanje in zahteve za kable AWG in MCM so navedeni v ustrezni publikaciji IEC, pri čemer so v tem standardu navedeni zgolj informativno. Dodatek ZB zajema seznam sklicevanj na skupino II in/ali kable AWG/MCM, ki so izključeni iz tega standarda.

General Information

• Status: Published
• Publication Date: 17-Dec-2007
• ICS: 29.120.30 - Plugs, socket-outlets, couplers
• Technical Committee: EPR - Electrical accessories
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 17-Dec-2007
• Due Date: 21-Feb-2008
• Completion Date: 18-Dec-2007
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Ref Project: EN 60309-1:1999/A1:2007 - Plugs, socket-outlets and couplers for industrial purposes - Part 1: General requirements

Relations

• Amends: SIST EN 60309-1:2000 - Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements
• Effective Date: 01-Feb-2008
• Replaces: SIST EN 60309-1:2000/A11:2006 - Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements
• Effective Date: 01-Feb-2008
• Replaced By: SIST EN IEC 60309-1:2022 - Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part 1: General requirements (IEC 60309-1:2021)
• Effective Date: 21-Jun-2022
• Revised: SIST EN 60309-1:2000/A11:2006 - Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements
• Effective Date: 21-Sep-2010
• Amends: SIST EN 60309-1:2000 - Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements
• Effective Date: 28-Jan-2023
• Replaces: SIST EN 60309-1:2000/A11:2006 - Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements
• Effective Date: 28-Jan-2023
• Replaces: SIST EN 60309-1:2000/A11:2006 - Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60309-1:2000/A1:2008
01-februar-2008
1DGRPHãþD
SIST EN 60309-1:2000/A11:2006
9WLþLYWLþQLFHLQVSRMQLHOHPHQWL]DLQGXVWULMVNRUDERGHO6SORãQH]DKWHYH,(&
$VSUHPHQMHQ
Plugs, socket-outlets and couplers for industrial purposes - Part 1: General requirements
(IEC 60309-1:1999/A1:2005 modified)
Stecker, Steckdosen und Kupplungen für industrielle Anwendungen - Teil 1: Allgemeine
Anforderungen (IEC 60309-1:1999/A1:2005 modifiziert)
Prises de courant pour usages industriels - Partie 1: Regles générales (IEC 60309-
1:1999/A1:2005 modifiée)
Ta slovenski standard je istoveten z: EN 60309-1:1999/A1:2007
ICS:
29.120.30 9WLþLYWLþQLFHVSRMNH Plugs, socket-outlets,
couplers
SIST EN 60309-1:2000/A1:2008 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
EN 60309-1/A1

NORME EUROPÉENNE
April 2007
EUROPÄISCHE NORM

ICS 29.120.30 Supersedes EN 60309-1:1999/A11:2004


English version


Plugs, socket-outlets and couplers
for industrial purposes -
Part 1: General requirements
(IEC 60309-1:1999/A1:2005, modified)


Prises de courant  Stecker, Steckdosen und Kupplungen
pour usages industriels - für industrielle Anwendungen -
Partie 1: Règles générales Teil 1: Allgemeine Anforderungen
(CEI 60309-1:1999/A1:2005, modifié) (IEC 60309-1:1999/A1:2005, modifiziert)




This amendment A1 modifies the European Standard EN 60309-1:1999; it was approved by CENELEC on
2006-11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This amendment exists in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60309-1:1999/A1:2007 E

---------------------- Page: 2 ----------------------

EN 60309-1:1999/A1:2007 - 2 -
Foreword
The text of document 23H/174/FDIS, future amendment 1 to IEC 60309-1:1999, prepared by SC 23H,
Industrial plugs and socket-outlets, of IEC TC 23, Electrical accessories, was submitted to the
IEC-CENELEC parallel vote.
A draft amendment, containing common modifications to IEC 60309-1:1999 and this future amendment 1,
was prepared by CENELEC BTWG 112-1, Improvement of EN 60309-1 and EN 60309-2, and was submitted to
the formal vote.
The combined texts were approved by CENELEC as amendment A1 to EN 60309-1:1999 on 2006-11-01.
This amendment supersedes EN 60309-1:1999/A11:2004.
The following dates were fixed:
– latest date by which the amendment has to be
implemented at national level by publication of
(dop) 2007-11-01
an identical national standard or by endorsement
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2009-11-01
Annexes ZA and ZB have been added by CENELEC.
__________

---------------------- Page: 3 ----------------------

- 3 - EN 60309-1:1999/A1:2007
Endorsement notice
The text of amendment 1:2005 to the International Standard IEC 60309-1:1999 was approved by CENELEC
as an amendment to the European Standard with agreed common modifications as given below.
COMMON MODIFICATIONS
1 Scope
Add the following:
This European Standard applies to products intended to be used with cable with metric sizes (mm²) only.
Reference and requirements to AWG and MCM cables and voltages not used in Europe are present in the
relevant IEC publication and they are reported in this standard for information only.
See Annex ZB for a list of references to AWG/MCM cables or non-European voltages which are excluded
from this standard.
In this standard delete all reference to products of Series II. Values and corresponding requirements listed as
Series II ratings are to be considered as "Other ratings".

Add the new annex ZB.

---------------------- Page: 4 ----------------------

EN 60309-1:1999/A1:2007 - 4 -
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

Addition to Annex ZA of EN 60309-1:

Publication Year Title EN/HD Year

1)
ISO 1456 – Metallic coatings - Electrodeposited coatings of - -
nickel plus chromium and of copper plus nickel
plus chromium


1)
ISO 2081 – Metallic coatings - Electroplated coatings of - -
zinc on iron or steel


1)
ISO 2093 – Electroplated coatings of tin - Specification and - -
test methods



Annex ZB
(normative)

References to AWG/MCM cables and/or non-European voltages
which are excluded from this standard
EN 60309-1 and A1
Subclause 5.1 (277 V)
Subclause 7.7 Note 2 of Table 2
Subclause 10.4 Table 3


1)
Undated reference.

---------------------- Page: 5 ----------------------

NORME CEI
INTERNATIONALE
IEC



60309-1
INTERNATIONAL


1999
STANDARD


AMENDEMENT 1
AMENDMENT 1

2005-10

Amendement 1
Prises de courant pour usages industriels –
Partie 1:
Règles générales

Amendment 1
Plugs, socket-outlets and couplers
for industrial purposes –
Part 1:
General requirements
 IEC 2005 Droits de reproduction réservés  Copyright - all rights reserved
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
CODE PRIX
U
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

---------------------- Page: 6 ----------------------

60309-1 Amend. 1  IEC:2005 – 3 –
FOREWORD
This amendment has been prepared by subcommittee 23H:Industrial plugs and socket-outlets,
of IEC technical committee 23:Electrical accessories.
The text of this amendment is based on the following documents:
FDIS Report on voting
23H/174/FDIS 23H/182/RVD

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
This amendment is published as an exception to IEC rule (Administrative Circular
190/AC/1996) limiting the size of an amendment to 15 % of the base publication
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________

1 Scope
Replace the second paragraph by:
The list of preferred ratings is not intended to exclude other ratings.
Add after the third paragraph the following:
This standard applies to accessories with screwless type terminals or insulation piercing
terminals, with a rated current up to and including 16 A for Series I and 20 A for Series II.
2 Definitions
Add the following new definitions:
2.18.7
screwless type terminal
a terminal for the connection and subsequent disconnection of one or more conductors, the
connection being made, directly or indirectly, by other means than screws
NOTE Examples of screwless type terminals are given in Figure 14h.

---------------------- Page: 7 ----------------------

60309-1 Amend. 1  IEC:2005 – 5 –
2.18.8
insulation piercing terminal
IPT
a terminal for the connection and subsequent disconnection of one or more conductors, the
connection being made by piercing, boring through, cutting through, removing, displacing or
making ineffective in some other manner the insulation of the conductor(s) without previous
stripping
NOTE 1 The removal of the sheath of the cable, if necessary, is not considered as a previous stripping.
NOTE 2 Examples of IPT are given in Figure 14i.
3 Normative reference
Add the following:
ISO 2081, Metallic coatings – Electroplated coatings of zinc on iron or steel
ISO 2093, Electroplated coatings of tin – Specification and test methods
ISO 1456, Metallic coatings – Electrodeposited coatings of nickel plus chromium and of
copper plus nickel plus chromium
4 General
4.1 General requirements
Add, after third paragraph, the following:
Combinations of plugs, socket-outlets, appliance inlets and connectors that are intended for
use together shall comply with the requirements of this standard and the relevant standard
sheet, if any.
4.2 General notes on test
4.2.1 Add the following new sentence:
When a part or a component is incorporated in a device or accessory according to IEC 60309
standard, and if this part or component meets an appropriate IEC standard, then no further
test(s) or requirement(s) shall be required for this part or component, unless it is being used
in a way significantly different from the intent of its own standard.
4.2.4 Replace the existing text by the following:
4.2.4 Three samples are subjected to all the tests, except if necessary for the tests of 11.1.4
and Clause 29 where, for each clause, one new set of samples is tested. If, however, the
tests of Clauses 20, 21 and 22 have to be made with both d.c. and a.c., the tests with a.c. are
made on three additional samples.
5 Standard ratings
5.2 Add, after Table 1, the following note:
NOTE Ratings referred as “Other ratings” in this standard are given for test purpose only, when the manufacturer
has not used the preferred ratings.

---------------------- Page: 8 ----------------------

60309-1 Amend. 1  IEC:2005 – 7 –
6 Classification
6.1.2 Replace the existing text by the following:
6.1.2 according to degrees of protection in accordance with IEC 60529
Add the following note:
NOTE According to IEC 60529, an accessory designated with second characteristic numeral 7 or 8 is only
suitable for immersion. For protection against exposure to water jets, additional testing is required according to
second characteristic numeral 5 or 6 and then the product should be marked accordingly.
Add the following new classifications:
6.1.6 according to the type of terminals
– with screw type terminals;
– with screwless type terminals;
– with insulation piercing terminals.
6.1.7 according to the type of conductors for screwless type and insulation piercing
terminals
– for solid conductors only;
– for rigid (both solid and stranded) conductors only;
– for flexible conductors only;
– for rigid (both solid and stranded) and flexible conductors.
7 Marking
th th
7.2 Delete 7 and 8 symbols (one drop in a triangle and two drops) and the relevant
description.
Replace the first paragraph after the symbols by the following:
For IP codes, the two characteristic numerals (XX) shall be specified.
Add the following new subclauses:
7.8 Accessories with screwless type terminals shall be marked with the length of insulation
to be removed before insertion of the conductor into the terminal.
7.9 Terminals according to 6.1.7 shall be marked as follows:
– terminals declared for solid conductors only with the letter(s) “s” or “sol”;
– terminals declared for rigid conductors only (both solid and stranded) with the letter “r”
– terminals declared for flexible conductors only with the letter “f”;
– terminals declared for rigid (both solid and stranded) and flexible conductors need not be
marked.

---------------------- Page: 9 ----------------------

60309-1 Amend. 1  IEC:2005 – 9 –
This marking shall appear where it is practical on the end product or on the smallest package
unit or in the manufacturer’s technical documentation and/or catalogues.
7.10 For terminals, the connection and disconnection procedures, if necessary, shall be
indicated on the product, on the smallest package unit or on the manufacturer’s
documentation.
8 Dimensions
8.1 Replace the existing text by the following:
Accessories shall comply with the appropriate standard sheets, if any. When standard sheets
do not exist, accessories shall comply with manufacturer’s specifications.
8.2 Replace the existing test by the following:
It shall not be possible to engage plugs or connectors with socket-outlets or appliance inlets
having different ratings, or having contact combinations allowing improper connection.
In addition, the design shall be such that improper connections shall not be possible between:
– the earth and/or pilot plug contact and a live socket-outlet contact, or a live plug contact
and the earth and/or pilot socket-outlet contact;
– the phase plug contacts and the neutral socket-outlet contact, if any;
– the neutral plug contact and a phase socket-outlet contact.
Connection of single-phase or three-phase plugs into three-phase + neutral socket-outlets are
permitted where the above conditions are met.
Compliance is checked by inspection.

---------------------- Page: 10 ----------------------

60309-1 Amend. 1  IEC:2005 – 11 –
10 Provision for earthing
Replace Table 3 by the following:
Table 3 – Size for connectable conductors
1) 5)
Rating of Internal connection External earthing
the accessory connection if any
 Flexible cables for plugs Solid or stranded cables
2) 6)
Voltage Current and connectors
for socket-outlets
V A Solid or stranded cables
2)
for appliance inlets
Series Series Other Series I Series II Series I Series II Series I Series II
I II ratings
2 3) 2 3) 2 3)
mm AWG/MCM mm AWG/MCM mm AWG/MCM
Not 16 20  4 to 10 12 to 8 4 to 10 12 to 8
exceed-
32 30 4 to 10 12 to 8 4 to 10 12 to 8
ing 50
  6 0,75 to 1 18 to - 0,75 to 1,5 18 to 16 2,5 14
  10 1 to 1,5 - to 16 1 to 1,5 - to 16 2,5 14
16 20  1 to 2,5 16 to 12 1,5 to 4 16 to 12 6 10
  25 1,5 to 4 16 to 12 2,5 to 6 14 to 10 6 10
32 30  2,5 to 6 14 to 10 2,5 to 10 14 to 8 10 8
  40 4 to 10 12 to 8 4 to 16 12 to 6 10 8
  50 4 to 10 12 to 8 4 to 16 12 to 6 16 6
Exceeding
50
63 60  6 to 16 10 to 6 6 to 25 10 to 4 25 4
  80 10 to 25 8 to 4 16 to 35 6 to 2 25 4
  90 10 to 25 8 to 4 16 to 35 6 to 2 25 4
 100  16 to 50 6 to 0 25 to 70 4 to 00 25 4
125 150 25 to 70 4 to 00 35 to 95 2 to 000 25 4
  160 25 to 70 4 to 00 35 to 95 2 to 000 25 4
4)
250 200 70 to 150 00 to 0000 70 to 185 00 to 250 25 4
1)
Terminal for pilot conductors, if any, shall allow the connection of conductors having a cross-sectional area of 1 mm².
2)
Classification of conductors: according to IEC 60228.
3) 2
The nominal cross-sectional areas of conductors are given in square millimetres (mm ). AWG/MCM values are considered as
2
equivalent to mm for the purpose of this standard.
AWG: American Wire Gauge is a system of identifying wires in which the diameters are in geometric progression between
size 36 and size 0000.
2
MCM: Mille Circular Mils denotes circle surface area. 1 MCM = 0,5067 mm .
2
4) 150 mm for 200 A accessories of series II.
5) For ratings other than those above, the cross-sectional area(s) of the conductors may be that specified by the manufacturer.
6) For socket-outlets declared for flexible conductors only, these values apply.

---------------------- Page: 11 ----------------------

60309-1 Amend. 1  IEC:2005 – 13 –
11 Terminals
Replace title and the existing text of this clause by the following:
11 Terminals and terminations
11.1 Common requirements for terminals and terminations
11.1.1 Rewirable accessories shall be provided with terminals.
Rewirable plugs and connectors shall be provided with terminals that accept flexible
conductors.
11.1.2 Non-rewirable accessories shall be provided with soldered, welded, crimped or
equally effective permanent connections (terminations).
Connections made by crimping a pre-soldered flexible conductor are not permitted, unless the
soldered area is outside the crimping area.
Compliance is checked by inspection.
11.1.3 Terminals shall allow the conductor to be connected without special preparation.
NOTE 1 The term "special preparation" covers soldering of the wires of the conductor, use of terminal ends, etc.,
but not the reshaping of the conductor before introduction into the terminal or the twisting of a flexible conductor to
consolidate the end.
NOTE 2 This requirement is not applicable to lug terminals
Compliance is checked by inspection.
11.1.4 Parts of terminals shall be of a metal having, under conditions occurring in the
equipment, mechanical strength, electrical conductivity and resistance to corrosion adequate
to intended use.
Examples of suitable metals, when used within a permissible temperature range and under
normal conditions of chemical pollution, are:
– copper;
– an alloy containing at least 58 % copper for parts that are worked cold or at least 50 %
copper for other parts;
– stainless steel containing at least 13 % chromium and not more than 0,09 % carbon;
– steel provided with an electroplated coating of zinc according to ISO 2081, the coating
having a thickness of at least:
- 8 µm (ISO service condition 2) for IP < X4 accessories;
- 12 µm (ISO service condition 3) IP > X5 accessories;
– steel provided with an electroplated coating of nickel and chromium according to
ISO 1456, the coating having a thickness of at least:
- 20 µm (ISO service condition 2) for IP < X4 accessories;
- 30 µm (ISO service condition 3) for IP > X5 accessories;

---------------------- Page: 12 ----------------------

60309-1 Amend. 1  IEC:2005 – 15 –
– steel provided with an electroplated coating of tin according to ISO 2093, the coating
having a thickness equal to at least that specified for:
- 20 µm (ISO service condition 2) for IP < X4 accessories;
- 30 µm (ISO service condition 3) for IP > X5 accessories.
Current-carrying parts, which may be subjected to mechanical wear, shall not be made of
steel provided with an electroplated coating.
Compliance is checked by inspection and by chemical analysis.
11.1.5 If the body of an earthing terminal is not part of the metal frame or housing of the
accessory, the body shall be of material as prescribed in 11.1.4 for parts of terminals. If the
body is part of the metal frame or housing, the clamping means shall be of such material.
If the body of an earthing terminal is part of a frame or housing made of aluminium or
aluminium alloy, precautions shall be taken to avoid the risk of corrosion resulting from
contact between copper and aluminium or its alloys.
NOTE The requirement regarding the avoidance of the risk of corrosion does not preclude the use of adequately
coated metal screws or nuts.
Compliance is checked by inspection and by chemical analysis.
11.1.6 Terminals shall be properly fixed to the accessory and shall not loosen when
connecting and disconnecting the conductors.
Clamping means shall not serve to fix any other component.
NOTE The clamping means for the conductor may be used to stop rotation or displacement of the plug or socket
contacts.
Compliance is checked by inspection and, if necessary, by test of 25.1.
NOTE These requirements do not preclude terminals that are floating or terminals so designed that rotation or
displacement of the terminal is prevented by the clamping screw or nut, provided that their movement is
appropriately limited and does not impair the correct operation of the accessory.
Terminals may be prevented from working loose by fixing with two screws, by fixing with one screw in a recess
such that there is no appreciable play, or by other suitable means.
Covering with sealing compound without other means of locking is not deemed to be sufficient. Self-hardening
resins may, however, be used to lock terminals which are not subject to torsion in normal use.
11.1.7 Each terminal shall be located in proximity to the other terminals, as well as to the
internal earthing terminal, if any, unless there is a sound technical reason to the contrary.
Compliance is checked by inspection.
11.1.8 Terminals shall be so located or shielded that:
– screws or other parts becoming loose from the terminals, cannot establish any electrical
connection between live parts and metal parts connected to the earthing terminal;
– conductors becoming detached from live terminals cannot touch metal parts connected to
the earthing terminal;

---------------------- Page: 13 ----------------------

60309-1 Amend. 1  IEC:2005 – 17 –
– conductors becoming detached from the earthing terminal cannot touch live parts.
This requirement applies also to terminals for pilot conductors.
Compliance is checked by inspection and by manual test.
11.1.9 When the conductors have been correctly fitted, there shall be no risk of accidental
contact between live parts of different polarity or between such parts and accessible metal
parts, and, should a wire of a stranded conductor escape from a terminal, there shall be no
risk that such a wire emerges from the enclosure.
The requirement with regard to the risk of accidental contact between live parts and access-
ible metal parts does not apply to accessories having rated voltages not exceeding 50 V.
Compliance is checked by inspection and, where the risk of accidental contact between live
parts and other metal parts is concerned, by the following test:
An 8 mm length of insulation is removed from the end of a flexible conductor having a cross–
sectional area in the middle of the range specified in Table 3. One wire of the stranded
conductor is left free and the other wires are fully inserted and clamped into the terminal. The
free wire is bent back, without tearing the insulation, in every possible direction, but without
making sharp bends around barriers.
The free wire of a conductor connected to a live terminal shall neither touch any metal part
which is not a live part nor emerge from the enclosure. The free wire of a conductor
connected to the earthing terminal shall not touch any live part.
NOTE If necessary, the test is repeated with the free wire in another position.
11.2 Screw type terminals
11.2.1 Screw type terminals shall allow the proper connection of copper or copper-alloy
conductors having nominal cross-sectional areas as shown in Table 3.
For terminals other than lug terminals, compliance is checked by the following test and by
tests of 11.5.
Gauges as specified in Figure 13, having a measuring section for testing the insertability of
the maximum specified cross-sectional area of Table 3, shall be able to penetrate into the
terminal aperture, down to the designated depth of the terminal, under their own weight.
Screw type terminals that cannot be checked with the gauges specified in Figure 13, shall be
tested by suitably shaped gauges, having the same cross-section as those of the appropriate
gauges given in Figure 13.
For pillar terminals in which the end of a conductor is not visible, the hole to accommodate
the conductor shall have a depth such that the distance between the bottom of the hole and
the last screw will be equal to at least half the diameter of the screw, and in any case not less
than 1,5 mm.
Compliance is checked by inspection.

---------------------- Page: 14 ----------------------

60309-1 Amend. 1  IEC:2005 – 19 –
For terminals complying with Figure 14f, the lug shall accept conductors having nominal
cross-sectional areas within the appropriate range specified in Table 3.
Compliance is checked by inspection.
11.2.2 Screw type terminals shall have appropriate mechanical strength.
Screws and nuts for clamping shall have an ISO thread or a thread comparable in pitch and
mechanical strength.
NOTE Provisionally, Sl, BA and UN threads are considered as being comparable in pitch and mechanical
strength.
Compliance is checked by inspection, measurement and the test of 25.1. In addition to the
requirements of 25.1, the terminals shall not have undergone changes after the test, that
would adversely affect their future use.
11.2.3 Screw type terminals shall be so designed that they clamp the conductor between
metal surfaces with sufficient contact pressure and without damaging the conductor.
Compliance is checked by inspection and by the type tests of 11.5.
11.2.4 Lug terminals shall be used only for accessories having a rated current of at least
60 A; if such terminals are provided, they shall be fitted with spring washers or equally
effective locking means.
Compliance is checked by inspection.
11.2.5 Clamping screws or nuts of earthing terminals shall be adequately locked against
accidental loosening, and it shall not be possible to loosen them without the aid of a tool.
Compliance is checked by inspection, by manual test and by the relevant test of Clause 11.
11.3 Screwless type terminals
11.3.1 Screwless type terminals shall allow the proper connection of copper or copper-alloy
conductors having nominal cross-sectional areas as shown in Table 3.
Gauges as specified in Figure 13, having a measuring section for testing the insertability of
the maximum specified cross-sectional area of Table 3, shall be able to penetrate into the
terminal aperture to the designated depth of the terminal.
Screwless type terminals that cannot be checked with the gauges specified in Figure 13, shall
be tested by suitably shaped gauges, having the same cross-section as those of the
appropriate gauges given in Figure 13.
Compliance is checked by inspection.
11.3.2 Screwless type terminals shall be so designed that they clamp the conductor(s)
between metal surfaces, with sufficient contact pressure and without damaging the
conductor(s).
Compliance is checked by inspection and the type tests of 11.5 and 11.6.

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60309-1 Amend. 1  IEC:2005 – 21 –
11.3.3 Screwless type terminals shall have appropriate mechanical strength.
Compliance is checked by the following test:
Five insertions and disconnections are made with each type of conductor for which the
terminal is intended to be used, with conductors having the largest diameter according to
Table 3 and Table 10.
The insertion and disconnection of the conductors shall be made in accordance with
manufacturer’s instructions.
New conductors are used each time, except for the fifth time, when the conductor used for the
fourth insertion is clamped at the same place. For each insertion, the conductors are either
pushed as far as possible into the clamping unit or are inserted so that adequate connection
is obvious. After each insertion the conductor is twisted through 90° and subsequently
disconnected.
After these tests, the terminals shall not be damaged in such a way as to impair their further
use with the smallest and the largest conductors.
11.3.4 The connection or disconnection of conductors shall be made:
– either by the use of a general purpose tool or a convenient integrated device in the
terminal, to open it and to assist the insertion or the withdrawal of the conductor(s);
– or by simple insertion.
Disconnecting a conductor shall require an operation, other than a pull only on the conductor,
such that it can, in normal use, be effected manually, with or without the help of a tool.
Compliance is checked by inspection.
11.3.5 Opening for a tool intended to assist the insertion or disconnection of the conductors,
if needed, shall be clearly distinguishable from the opening intended for the conductor.
Compliance is checked by inspection.
11.3.6 Terminals shall be so designed and constructed that:
– each conductor is clamped individually in a separate independent clamping unit (not
necessarily in separate holes);
– during the connection or disconnection, the conductors can be connected or disconnected
either at the same time or separately.
It shall be possible to clamp securely any number of conductors up to the maximum provided
for.
Compliance is checked by inspection and by tests of 11.5.
11.3.7 Terminals shall be so designed and constructed that inadequate insertion of the
conductor is avoided.
Compliance is checked by inspection.

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60309-1 Amend. 1  IEC:2005 – 23 –
11.3.8 Screwless terminals shall be so designed that the connected conductor remains
clamped, even if it has been bent during normal installation.
NOTE This test is intended to simulate the bending forces on the conductor being transferred to the terminal
during installation.
Compliance is checked by the following test:
For the bending test, three new specimens shall be used.
The test apparatus, the principle of which is shown in Figure 19, shall be constructed so that:
– the te
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