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IEC 60309-2
Edition 5.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plugs, fixed or portable socket-outlets and appliance inlets for industrial
purposes –
Part 2: Dimensional compatibility requirements for pin and contact-tube
accessories
Fiches, socles fixes de prise de courant, prises mobiles et socles de connecteur
pour usages industriels –
Partie 2: Exigences dimensionnelles de compatibilité pour les appareils à
broches et alvéoles
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IEC 60309-2
Edition 5.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plugs, fixed or portable socket-outlets and appliance inlets for industrial
purposes –
Part 2: Dimensional compatibility requirements for pin and contact-tube
accessories
Fiches, socles fixes de prise de courant, prises mobiles et socles de connecteur
pour usages industriels –
Partie 2: Exigences dimensionnelles de compatibilité pour les appareils à
broches et alvéoles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.30 ISBN 978-2-8322-0000-0
– 2 – IEC 60309-2:2021 © IEC 2021
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General . 8
5 Standard ratings . 8
6 Classification of accessories . 9
7 Marking . 10
8 Dimensions. 12
8.2.1 General . 23
8.2.2 Checking plugs and appliance inlets . 24
8.2.3 Checking socket-outlets . 27
9 Protection against electric shock . 33
10 Provision for earthing . 33
11 Terminals and terminations . 33
12 Interlocks . 35
13 Resistance to ageing of rubber and thermoplastic material . 35
14 Construction . 35
15 Construction of fixed socket-outlets . 38
16 Construction of plugs and portable socket-outlets . 38
17 Construction of appliance inlets . 39
18 Degrees of protection . 39
19 Insulation resistance and dielectric strength . 39
20 Breaking capacity . 40
21 Normal operation . 40
22 Temperature rise . 40
23 Flexible cables and their connection . 40
24 Mechanical strength . 40
25 Screws, current-carrying parts and connections . 40
26 Creepage distances, clearances and distances through sealing compound . 41
27 Resistance to heat, to fire and to tracking . 41
28 Corrosion and resistance to rusting . 41
29 Conditional short-circuit current withstand test . 41
30 Electromagnetic compatibility . 41
Bibliography . 75
Figure 201 – 16/20 A, 32/30 A, 63/60 A and 125/100 A socket-outlets having rated
operating voltages exceeding 50 V – "go" gauges for checking dimensions d , d , l . 18
1 2 1
Figure 202 – 16/20 A, 32/30 A, 63/60 A and 125/100 A socket-outlets having rated
operating voltages exceeding 50 V – "no-go" gauges for checking dimensions d , d . 19
1 2
Figure 203 – 16/20 A, 32/30 A, 63/60 A and 125/100 A plugs and appliance inlets
having rated operating voltages exceeding 50 V – "go" gauges for checking
dimensions d , d , l . 20
2 4 1
Figure 204 – 16/20 A, 32/30 A, 63/60 A and 125/100 A plugs and appliance inlets
having rated operating voltages exceeding 50 V – "NO-GO" gauges for checking
dimensions d , d . 21
2 4
Figure 205 – 16/20 A and 32/30 A socket-outlets having rated operating voltages not
exceeding 50 V – Gauges for checking compatibility . 22
Figure 206 – 16/20 A and 32/30 A plugs and appliance inlets having rated operating
voltages not exceeding 50 V – Gauges for checking compatibility . 23
Figure 207 – "NO-GO" gauges for checking 16/20 A, 32/30 A, 63/60 A and 125/100 A
plugs and appliance inlets having rated operating voltages exceeding 50 V . 25
Figure 208 – 16/20 A and 32/30 A plugs and appliance inlets having rated operating
voltages not exceeding 50 V – Gauges for checking rigidity of enclosures of
thermoplastic material under humid and warm conditions . 25
Figure 209 – Device for testing non-solid pins . 27
Figure 210 – Arrangement for test using "NO-GO" gauge for checking 16/20 A,
32/30 A, 63/60 A and 125/100 A socket-outlets having rated operating voltages
exceeding 50 V . 29
Figure 211 – Gauges for checking socket-outlets of 16/20 A, 32/30 A, 63/60 A and
125/100 A having rated operating voltages exceeding 50 V . 30
Figure 212 – 16/20 A and 32/30 A socket-outlets having rated operating voltages not
exceeding 50 V – Gauges for checking rigidity of enclosures of thermoplastic material
under humid and warm conditions . 31
Figure 213 – Gauge for checking phase holes . 32
Figure 214 – Test of phase hole . 32
Figure 215 – Socket-outlets with enclosures of resilient or thermoplastic material –
Gauge for checking impossibility of single-pole insertion of a 10/16 A 250 V two-pole
plug 33
Figure 216 – Example of apparatus for checking the withdrawal force . 36
Table 201 – Rated currents . 9
Table 202 – Examples of marking for series I . 10
Table 203 – Examples of marking for series II . 10
Table 204 – Accessories with rated operating voltages exceeding 50 V . 13
Table 205 – Accessories with rated operating voltages not exceeding 50 V . 14
Table 206 – Retaining devices . 14
Table 207 – Forces applied to "GO"/"NO-G
...