IEC 60309-2:1999+AMD1:2005+AMD2:2012 CSV

Plugs, socket-outlets and couplers for industrial purposes - Part 2: Dimensional interchangeability requirements for pin and contact-tube accessories

IEC 60309-2:1999+A1:2005+A2:2012 applies to plugs and socket-outlets, cable couplers and appliance couplers with a rated operating voltage not exceeding 1 000 V, 500 Hz and a rated current not exceeding 125 A, primarily intended for industrial use, either indoors or outdoors. This part 2 shall be used in conjunction with part 1. A vertical line in the margin shows where the base publication has been modified by amendments 1 and 2. This consolidated version consists of the fourth edition (1999), its amendment 1 (2005) and its amendment 2 (2012). Therefore, no need to order amendments in addition to this publication.

Prises de courant pour usages industriels - Partie 2: Règles d'interchangeabilité dimensionnelle pour les appareils à broches et alvéoles

La CEI 60309-2:1999+A1:2005+A2:2012 s'applique aux prises de courant, aux prolongateurs et aux connecteurs ayant une tension nominale d'emploi ne dépassant pas 1 000 V, 500 Hz et un courant nominal ne dépassant pas 125 A, destinés essentiellement aux usages industriels, à l'intérieur ou à l'extérieur des bâtiments. La présente partie 2 doit être lue conjointement avec la partie 1. Une ligne verticale dans la marge indique où la publication de base a été modifiée par les amendements 1 et 2.  Cette version consolidée comprend la quatrième édition (1999), son amendement 1 (2005) et son amendement 2 (2012). Il n'est donc pas nécessaire de commander les amendements avec cette publication.

General Information

• Status: Published
• Publication Date: 22-May-2012
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.30 - Plugs, socket-outlets, couplers
• Technical Committee: SC 23H - Plugs, Socket-outlets and Couplers for industrial and similar applications, and for Electric Vehicles
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 18-Jun-2021

Standards Content (Sample)

IEC 60309-2
®

Edition 4.2 2012-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Plugs, socket-outlets and couplers for industrial purposes –
Part 2: Dimensional interchangeability requirements for pin and contact-tube
accessories

Prises de courant pour usages industriels –
Partie 2: Règles d'interchangeabilité dimensionnelle pour les appareils à
broches et alvéoles

IEC 60309-2:1999+A1:2005+A2:2012

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC 60309-2

®


Edition 4.2 2012-05




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Plugs, socket-outlets and couplers for industrial purposes –

Part 2: Dimensional interchangeability requirements for pin and contact-tube

accessories




Prises de courant pour usages industriels –

Partie 2: Règles d'interchangeabilité dimensionnelle pour les appareils à


broches et alvéoles













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX CR


ICS 29.120.30 ISBN 978-2-88912-054-3



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – 60309-2  IEC:1999+A1:2005
+A2:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Definitions . 7
3 Normative references . 8
4 General . 8
5 Standard ratings . 8
6 Classification . 9
7 Marking . 9
8 Dimensions . 12
9 Protection against electric shock . 17
10 Provision for earthing . 17
11 Terminals and terminations . 17
12 Interlocks and retaining devices . 20
13 Resistance to ageing of rubber and thermoplastic material . 20
14 General construction . 21
15 Construction of socket-outlets . 22
16 Construction of plugs and connectors . 23
17 Construction of appliance inlets . 24
18 Degrees of protection . 25
19 Insulation resistance and dielectric strength . 25
20 Breaking capacity . 25
21 Normal operation . 25
22 Temperature rise . 26
23 Flexible cables and their connection . 26
24 Mechanical strength . 26
25 Screws, current-carrying parts and connections . 26
26 Creepage distances, clearances and distances through sealing compound . 26
27 Resistance to heat, fire and tracking . 26
28 Corrosion and resistance to rusting . 26
29 Conditional short-circuit current withstand test . 26
30 Electromagnetic compatibility . 26

Standards sheets . 54
Figures . 91
Annex AA (informative) List of the clause numbers that require re-testing . 105

Table 101 . 8
Table 102 . 12
Table 103-1 – General purpose accessories with rated voltage not exceeding 50 V . 13
Table 103-2 – Special application accessories with rated voltage not exceeding 50 V . 13
Table 104 . 14
Table 105 . 16

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60309-2  IEC:1999+A1:2005 – 3 –
+A2:2012
Table 106 . 17
Table 107 – Size of connectable conductors . 19
Table 108 . 20
Table 109 . 21
Table 110 . 22
Table 111 . 23
Table 112 . 23

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– 4 – 60309-2  IEC:1999+A1:2005
+A2:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

PLUGS, SOCKET-OUTLETS AND COUPLERS
FOR INDUSTRIAL PURPOSES –

Part 2: Dimensional interchangeability requirements
for pin and contact-tube accessories



FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60309-2 has been prepared by subcommittee 23H: Industrial plugs
and socket-outlets, of IEC technical committee 23: Electrical accessories.
This part 2 shall be used in conjunction with part 1.
This consolidated version of IEC 60309-2 consists of the fourth (1999) [documents
23H/89/FDIS and 23H/92/RVD], its amendment 1 (2005) [documents 23H/175/FDIS and
23H/183/RVD] and its amendment 2 (2012) [documents 23H/275/FDIS and 23H/280/RVD].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 4.2.
A vertical line in the margin shows where the base publication has been modified by
amendments 1 and 2.

---------------------- Page: 6 ----------------------
60309-2  IEC:1999+A1:2005 – 5 –
+A2:2012
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability 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.

---------------------- Page: 7 ----------------------
– 6 – 60309-2  IEC:1999+A1:2005
+A2:2012
INTRODUCTION

This standard is divided into several parts:
Part 1: General requirements, comprising clauses of a general character.
Subsequent parts: Particular requirements dealing with particular types. The clauses of these
particular requirements supplement or modify the corresponding clauses in Part 1. Where the
text of subsequent parts indicates an "addition" to or a "replacement" of the relevant
requirement, test specification or explanation of Part 1, these changes are made to the
relevant text of Part 1, which then becomes part of the standard. Where no change is
necessary, the words "This clause of Part 1 is applicable" are used.

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60309-2  IEC:1999+A1:2005 – 7 –
+A2:2012
PLUGS, SOCKET-OUTLETS AND COUPLERS
FOR INDUSTRIAL PURPOSES –

Part 2: Dimensional interchangeability requirements for
pin and contact-tube accessories



1 Scope
Replacement:
This standard applies to plugs and socket-outlets, cable couplers and appliance couplers with
a rated operating voltage not exceeding 1 000 V, 500 Hz and a rated current not exceeding
125 A, primarily intended for industrial use, either indoors or outdoors.
NOTE All references for accessories with a rated current of more than 125 A in part 1 are not applicable to this
part 2.
This standard applies to plugs and socket-outlets, cable couplers and appliance couplers with
pins and contact tubes of standardized configurations.
This standard applies to plugs and socket-outlets, cable couplers and appliance couplers,
hereinafter referred to as accessories, for use when the ambient temperature is normally
within the range –25 °C to 40 °C.
The use of these accessories on building sites and for agricultural, commercial and domestic
applications is not precluded.
This standard applies to accessories with screwless type terminals or insulation piercing
terminals, with a rated current up to and including 32 A for series I and 30 A for series II.

Socket-outlets or appliance inlets incorporated in or fixed to electrical equipment are within
the scope of this standard. This standard also applies to accessories intended to be used in
extra-low voltage installations.
NOTE This standard does not apply to accessories primarily intended for domestic and similar general purposes.
In locations where special conditions prevail, for example on board ship or where explosions are liable to occur,
additional requirements may be necessary.
2 Definitions
This clause of part 1 is applicable except as follows:
Additional subclause:
2.101
phase inverter
a plug or an appliance inlet with operating means to interchange the position of two phase
pins without disconnecting them from the conductors

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– 8 – 60309-2  IEC:1999+A1:2005
+A2:2012
3 Normative references
This clause of part 1 is applicable except as follows:
Addition:
IEC 60364-4-41, Low-voltage electrical installations – Part 4-41: Protection for safety –
Protection against electric shock
IEC 60617-2:1996, Graphical symbols for diagrams – Part 2: Symbol elements, qualifying
symbols and other symbols having general application
4 General
This clause of part 1 is applicable except as follows:
4.1 The last paragraph of this subclause of Part 1 is not applicable.
See Amendment 1 of IEC 60309-1.
Additional subclause:
4.101 If gauges are used, they shall be of hardened steel, all corners shall be slightly
rounded-off with a maximum radius of 0,1 mm, and the surface finish for all measurement
N8
surfaces shall be min., if not otherwise specified.
In this standard:
covers both 2P + and 1P + N + and
2P +
3P + covers both 3P + and 2P + N +
unless specifically excluded (see Table 104).

5 Standard ratings
This clause of part 1 is applicable except as follows:
5.2 Replacement:
Standard rated currents are given in Table 101.
Table 101
Series I Series II
A A
16 20
32 30
63 60
125 100

5.101 The standard IP ratings according to IEC 60529 are:
– IP44,
– IP67,
– IP66/IP67.

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60309-2  IEC:1999+A1:2005 – 9 –
+A2:2012
6 Classification
This clause of part 1 is applicable except as follows:
6.1.2 This clause of Part 1 is applicable.
7 Marking
This clause of part 1 is applicable except as follows:
7.1 Modification:
Delete the note
Addition:
The symbol indicating the position of the earthing contact or of the minor key or keyway shall
be placed before or above the figure for the rated operating voltage, and separated from it by
a line.
These markings shall be placed after that for rated current, separated from it by a dash if an
oblique line separates the symbol indicating the position of the earthing contact or of the
minor key or keyway from the figure for the rated operating voltage.
If a symbol for nature of supply is used, it shall be placed next to or below the marking for
rated operating voltage.
For three-phase accessories it is not necessary to mark the voltage phase to neutral, if any.
The marking for rated current(s), position of the earthing contact or the minor key, keyway,
rated operating voltage(s) and nature of supply accordingly may be as follows:
For series I:
9 h
16 A - 9 h/400 V~, or 16 - 9 h/400~, or 16 - , or
400 ~
9 h
16 A - 9 h/380-415 V~, or 16 - 9 h/380-415~, or 16 -
380 - 415 ~
6 h
32 A - 6 h/230/400 V~, or 32 - 6 h/230/400~, or 32 - , or
230 / 400 ~
6 h
6 h / 220 / 380 V ~ 6 h / 220 / 380 ~
32 A - , or 32 - , or 32 -
220 / 380 ~
240 / 415 V ~ 240 / 415 V ~
240 / 415 ~

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– 10 – 60309-2  IEC:1999+A1:2005
+A2:2012
For series II
7 h
20 A - 7 h/480 V a.c. or 20 A - 7 h/480~, or 20 A -
480 ~
7 h
30 A - 7 h/480 V, 3 Phase, or 30 A - 7 h/480, 3Φ, or 30 A -
480 V, 3Φ
7 h
60 A - 7 h/277/480 V, 3 Phase Y, or 60 A - 7 h/277/480, 3ΦY, or 60 A -
277 / 480 V, 3Φ Y
It is allowed to put the symbols for a.c. (~) and d.c. ( or ) after the values (IEC 60617-2).
The drawings of standard sheets 2-I, 2-II, 2-III and 2-lV show accessories with the symbol 6 h
and those of standard sheets 2-VIII and 2-lX accessories with the symbol 12 h.
For accessories having rated operating voltages exceeding 50 V, the symbol indicating the
position of the earthing contact shall be a numeral followed by the letter h.
The numeral is derived from the position of the earth contact tube, when compared with the
face of a clock, the socket-outlet or connector being viewed from the front with the keyway at
the sixth hour.
For accessories having rated operating voltages not exceeding 50 V, the symbol indicating
the position of the minor key shall be a numeral followed by the letter h.
The numeral is derived from the position of the minor key, when compared with the face of a
clock, the socket-outlet or connector being viewed from the front with the major key at the
sixth hour.
For plugs and appliance inlets, the symbol indicating the position of the earthing contact or
the minor keyway shall be the same as that for the corresponding socket-outlet or connector.
Contact tubes of socket-outlets and connectors shall be positioned in the clockwise order
when viewed from the front as shown in the standard sheets (see also 7.5).
Pins of plugs and appliance inlets shall be positioned in the opposite order viewed from the
front.
7.2 This clause of Part 1 is applicable.
7.4 Replacement
For plugs and connectors, the marking specified in 7.1 shall be easily discernible when the
accessory is wired ready for use.
The marking for insulation voltage shall be on the main part; it shall not be visible when the
accessory is mounted and wired as in normal use.
NOTE 1 The term "ready for use" does not imply that the plug or connector is engaged with its complementary
accessory.
NOTE 2 The term "main part" of a plug or a connector means the part carrying the contacts.
Compliance is checked by inspection.

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60309-2  IEC:1999+A1:2005 – 11 –
+A2:2012
7.5 Replacement
For rewirable accessories, the contacts shall be indicated by the following symbols.
– for accessories with three contacts (phase + neutral + earth, or, phase + phase + earth):
L / +, unmarked, or
except for Series II clock position 4 h and 5 h which are marked:
N, unmarked, or
– for accessories with four contacts (three phase + earth):
L1, L2, L3, or or alternatively 1, 2, 3, or
except for Series II clock position 12 h (phase + centre tap + phase + earth) which is
marked:
L1, N, L2, or
– for accessories with five contacts (three phase + neutral + earth):
L1, L2, L3, N, or or alternatively 1, 2, 3, N or
– for a period of time the marking R1, S2, T3 may be used instead of L1, L2, L3.
– for accessories having a rated operating voltage not exceeding 50 V, 8 h clock position for
portable electric incubator : +12, +24.
These symbols shall be placed close to the relevant terminals; they shall not be placed on
screws, removable washers or other removable parts.
For phase inverters these symbols shall conform in one position with the requirements of 7.1.
In the other position of the inverting means, the phase marking need not conform.
NOTE The terminals for pilot conductors are not required to be indicated.
The figures used with the letters may be written as an index. It is recommended that where practicable the
symbol be used.

Compliance is checked by inspection.
7.7 Modification:
This subclause of part 1 is applicable except for the following addition:
Add:
The 2P + N + earth, 12 h, Series II accessories shall use the indicating colour orange.

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– 12 – 60309-2  IEC:1999+A1:2005
+A2:2012
8 Dimensions
This clause of part 1 is applicable except as follows:
8.1 Replacement:
Accessories shall comply with the relevant standard sheets as specified below:
– accessories having rated operating voltages exceeding 50 V:
• 16/20 A and 32/30 A: . Sheets 2-I and 2-II;
• 63/60 A and 125/100 A, without pilot contact:. Sheets 2-III and 2-IV;
• 63/60 A and 125/100 A, with pilot contact: . Sheets 2-IIIa and 2-IVa;
• mechanical interlock for 16 A to 125 A accessories . Sheet 2-V
– accessories having rated operating voltage not exceeding 50 V:
16/20 A and 32/30 A: .… Sheets 2-VIII and 2-IX.
Deviations from the dimensions specified in the standard sheets may be made, but only if
they provide a technical advantage and do not adversely affect the purpose and safety of the
accessories complying with the standard sheets, especially with regard to interchangeability
and non-interchangeability.
Compliance is checked by means of gauges or by measurement for those dimensions not
covered by gauges,
– for accessories having rated operating voltages exceeding 50 V according to:
• Figures 101 and 102 for socket-outlets and connectors;
• Figures 107 and 108 for plugs and appliance inlets;
– for accessories having rated operating voltages not exceeding 50 V according to:
• Figures 110 and 112 for 16/20 A and 32/30 A accessories.
The gauges shall be moved axially to the centre line of the accessory with a force as shown in
the Table 102, applied for 1 min.
Table 102
Rated current
Rated operating Force (max.) for Force (max.) for
voltage "GO" gauge "NOT GO" gauge
A
0
N ( )
V Series I Series II N
−1
Not exceeding 50 V 16 20 150 30
32 30 150 30
Exceeding 50 V 16 20 60 20
32 30 90 30
63 60 165 55
125 100 240 80

Before the test, the test specimen of insulating material shall be stored at a temperature of
(20 ± 5) °C and a relative humidity between 45 % and 75 % for four weeks.
For accessories having rated operating voltages not exceeding 50 V, the position of the minor
key or keyway shall be as shown in Tables 103-1 or 103-2

---------------------- Page: 14 ----------------------
60309-2  IEC:1999+A1:2005 – 13 –
+A2:2012
For accessories having rated operating voltages exceeding 50 V, the position of the earthing
contact shall be as shown in Table 104.
Compliance is checked by inspection.
Table 103-1 – General purpose accessories with rated voltage
not exceeding 50 V
Rated operating
Frequency Minor key or
voltage
keyway position*
V Hz
20 to 25 50 and 60 No minor key or keyway
40 to 50 50 and 60 12
100 up to and including 200 4
20 to 25 300 2
and 400 3
40 to 50 Over 400 up to and including 500 11
Direct current 10
*  The minor key or keyway position is indicated by the relevant number (
...