EN 61009-1:2012/A1:2014

SLOVENSKI STANDARD
01-december-2014
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Residual current operated circuit-breakers with integral overcurrent protectionfor
household and similar uses (RCBOs) - Part 1: General rules (IEC 61009-
1:2010/A1:2012, modified)
Fehlerstrom-/Differenzstrom-Schutzschalter mit eingebautem Überstromschutz (RCBOs)
für Hausinstallationen und für ähnliche Anwendungen -- Teil 1: Allgemeine
Anforderungen (IEC 61009-1:2010/A1:2012, modifiziert)
Interrupteurs automatiques à courant différentiel résiduel avec dispositif de protection
contre les surintensités incorporé pour usages domestiques et analogues (DD) -- Partie
1: Règles générales (CEI 61009-1:2010/A1:2012, modifié)
Ta slovenski standard je istoveten z: EN 61009-1:2012/A1:2014
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61009-1:2012/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 29.120.50
English Version
Residual current operated circuit-breakers with integral
overcurrent protection for household and similar uses (RCBOs) -
Part 1: General rules
(IEC 61009-1:2010/A1:2012 , modified)
Interrupteurs automatiques à courant différentiel résiduel Fehlerstrom-/Differenzstrom-Schutzschalter mit
avec dispositif de protection contre les surintensités eingebautem Überstromschutz (RCBOs) für
incorporé pour usages domestiques et analogues (DD) - Hausinstallationen und für ähnliche Anwendungen - Teil 1:
Partie 1: Règles générales Allgemeine Anforderungen
(CEI 61009-1:2010/A1:2012 , modifiée) (IEC 61009-1:2010/A1:2012 , modifiziert)
This amendment A1 modifies the European Standard EN 61009-1:2012; it was approved by CENELEC on 2014-08-04. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the same status
as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61009-1:2012/A1:2014 E

Contents Page
Foreword .3
Common modifications .4

– 3 – EN 61009-1:2012/A1:2014
Foreword
This document (EN 61009-1:2012/A1:2014) consists of the text of IEC 61009-1:2010/A1:2012 prepared by
SC 23E "Circuit-breakers and similar equipment for household use" of IEC/TC 23 "Electrical accessories",
together with the common modifications prepared by CLC/TC 23E "Circuit breakers and similar devices for
household and similar applications".
The following dates are fixed:
– latest date by which this document has to be implemented at (dop) 2015-08-04
national level by publication of an identical national standard or
by endorsement
– latest date by which the national standards conflicting with this (dow) 2017-08-04
document have to be withdrawn
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in
IEC 61009-1:2010/A1:2012 are prefixed “Z”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.

This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for
Use within Certain Voltage Limits (LVD - 2006/95/EC).
This document has been prepared under a mandate given to CENELEC by the European Commission and
the European Free Trade Association, and supports essential requirements of EU Directive(s).
Endorsement notice
The text of the International Standard IEC 61009-1:2010/A1:2012 was approved by CENELEC as a
European Standard with agreed common modifications.

Common modifications
Item Clause Common modifications
1. 1
Replace
“Delete Note 8 and replace it by the following paragraph and new Note 8”
by
“Replace the paragraph beginning by “For RCBOs incorporated…” by the following
paragraph and add a new Note 8:”
Delete “the requirements of IEC 60884-1 or” in the new paragraph.
Add “for socket-outlets” between “national requirements” and “of the country”.
2. 2
Delete the modifications to Clause 2.
3. 4.10 Replace the modifications to 4.10 by
“Delete the title “4.10.1 According to the fixation system” (but keep the contents of this
subclause).
Delete the subclause 4.10.2 (both title and contents).”
4. 4.13 Delete the last dash and Note 3.
5. Table 2 Delete “In the table, replace the word “non-operating” by “non-actuating".”
6. 5.3.10
Add a new modification:
"5.3.10  Standard values of rated impulse withstand voltage (U )
imp
Delete Note 2."
7. 6 Replace
“Replace the contents of item l) by the following:”
by
“Replace the contents of item l) in Table Z3 by the following:”
8. 6 Delete the two paragraphs beginning by “Replace the third paragraph…” and finishing
by “…manufacturer’s catalogue.”
9. 6 Replace
“Replace in the eleventh paragraph after Note 1, the word “circuit” by “conductor””
by
“Replace in the ninth paragraph of 6.Z1, the word “circuit” by “conductor””
10. 6 Replace
“Add the following text at the end of Clause 6:”
by
“Add the following text at the end of Clause 6.Z1:”
11. 8.1.3
Delete “before 9.7.1” in the new Note 1.
12. 8.1.3 Delete “Delete, in this table, point 5 in the first column and the existing Note 3.”
Table 7
– 5 – EN 61009-1:2012/A1:2014
Item Clause Common modifications
13. 8.1.5.1 Replace
“Delete the second paragraph and the note in this subclause.”
by
"Insert a second paragraph:
In this standard, only terminals for copper conductors are considered."
14. 8.1.5.1 Replace
“Annexes J, K or L”
by
“Annexes J or K”
15. 8.1.5.2 Replace
“or terminals for external untreated aluminium conductors and with aluminium screw-
type terminals for use with copper or with aluminium conductors according to Annex L.”
by
“VOID”
16. 8.1.5.2 Delete “NOTE Information on AWG is given in Annex ID.”
Table 8
17. 8.13 Delete the modifications to 8.13.
18. 9.1.1
Replace
Table 12
“items”
by
“item”
Delete the first dashed item
“– Limiting values of the non-operating current under overcurrent conditions 9.18”
19. 9.5.1 Delete “NOTE Information on AWG is given in Annex ID.”
20. 9.7.7.1
Add the following new modification:
Table 18
"Replace the title of Table 18 by “Void” and delete the table."
21. 9.7.7.2
Delete twice “(or path)”
Item Clause Common modifications
22. 9.7.7.4.1 Delete the two following rows:
Table 28
Single-phase system
with mid-point earthed
3,5 3,5 3,4 3,2 3,0
a)
120/240
Single phase system
6,2 6,0 5,8 5,6 5,0
b)
120/240 240
Replace
“Three-phase systems 230/400”
by
“Single-phase systems 230 or 400
Three-phase systems 400 or 230/400”
a) b)
Delete the two footnotes and .
23. 9.7.7.4.3
Delete twice “(or path)”
24. 9.7.7.5 In the paragraph after Note 1, replace
“50/60 Hz”
by
“50 Hz”
25. 9.7.7.5
Delete “(or path)” in the first dashed item.
26. 9.7.7.5 Replace the last sentence of the paragraph after Note 4 by:
“One test only is made, on one pole taken at random, with measurement of break time:
the latter shall not exceed the value specified in Table 2 at l .”
∆n
27. 9.7.7.5 Delete the last paragraph “This test is not applied to devices with solid neutral.”
28. 9.9.2.2
Delete the modifications to 9.9.2.2.
29. 9.12.2 Delete the two following dashed items:
“- a single-pole RCBO with two current paths;”
“- a three-pole RCBO with four current paths;”
30. 9.12.2 Replace
“The voltage sensors are connected
– across the terminals of the pole for single-pole RCBOs;
– across the supply terminals for multipole RCBOs.”
by
“The voltage sensors are connected across the supply terminals.”
31. 9.12.9.1 Replace the modification to 9.12.9.1 by
"Replace at the end of paragraph after Note 1, ”Figure 7 and 11” by “Figures 7 and 8”."

– 7 – EN 61009-1:2012/A1:2014
Item Clause Common modifications
32. 9.12.11.2.1 In the second paragraph, replace
“105 %”
by
“110 %”
Add a sentence at the end of the second paragraph:
“Phases which do not carry the short circuit current during this test shall be connected
to the supply voltage at the line terminals.”
Add a new paragraph after the second paragraph:
"The measurement of the break time shall be carried out at every test and the values
shall comply with the values of Table 2."
33. 9.12.11.2.2 Add a new modification at the end of the modifications to 9.12.11.2.2:
“Delete the last paragraph.”
34. 9.12.11.3 In the first paragraph, replace
“ninth”
by
“seventh”
Delete the paragraph beginning with “For three-pole…”.
Delete the paragraph beginning with “For four-pole…”
In the last paragraph, delete “single-pole and”.
35. 9.12.11.4
Add a new modification:
“In paragraph d), replace “Figure 11” by “Figure 7””
36. 9.12.13.1 Delete the modification to 9.12.13.1.
37. 9.12.13.2 Delete the modification to 9.12.13.2
38. 9.15
Replace
“From the fifth to the ninth paragraph,”
by
“From the sixth to the tenth paragraph,”
39. 9.18
Delete the modification to 9.18.
40. 9.19.1 Delete the modification to 9.19.1.
41. 9.24 Delete the modification to Table 27.
Table 27
42. 9.25
Replace
” Add before Figure 1 the following new subclause:”
by
“Add before 9.Z1, the following new subclause:“
43. Before
In the first line of the modification, replace
Figure 7
“to 12”
by
“and 11”
Item Clause Common modifications
44. Figure 8 Replace
“Figure 8 – Test circuit for the verification of the rated short-circuit capacity of a single-
pole RCBO with two-current paths (9.12)
Replace Figure 8 by the following:”
by
“Figure 8 – Void
Reintroduce Figure 8 as follows:”
45. Figure 9 Replace
“Figure 9 – Test circuit for the verification of the rated short-circuit capacity of a two-
pole RCBO, in case of a single-phase circuit (9.12)
Replace Figure 9 by the following:”
by
“Figure 9 – Void
Reintroduce Figure 9 as follows:”
46. Figures 10 Replace
to 12
“Delete Figures 10, 11 and 12 and replace by “Void”.”
by
“Delete Figure 11 and replace by “Void”.”
47. Figure 22 Delete “Delete Figure 22 and replace by “Void”.”
48. Annex A Replace the test sequence D of the new Table A.1 by:
Table A.1
D 9.17 Behaviour in case of failure of the line voltage
9.19 Behaviour in case of surge currents
9.21 D.C. components
9.16 Test device
49. Annex A
Replace the test sequences F , F and G of the new Table A.1 by:
0 1
Table A.1
F 9.12.11.4 b) Performance at service short-circuit capacity
(and 9.12.12)
F 9.12.11.4 c) Performance at rated short-circuit capacity
(and 9.12.12.2)
F 9.12.11.4 d) Performance at I
Δm
(and 9.12.12.2)
G 9.22.1 Reliability (climatic tests)
G 9.Z1 Verification of correct operation at low ambient
air temperature of RCBOs operating at
temperatures between -25 °C and + 40 °C

– 9 – EN 61009-1:2012/A1:2014
Item Clause Common modifications
50. Annex A Replace
Table A.2
“In Table A.2, replace A by A
1.
containing the following:
In Table A.2, add a new row after the new A
A 3 2 3
”
by
“In Table A.2, replace A by the following:
A 1 1 -
A 3 2 3
f
and delete footnote ”.
51. Annex A Add a new modification:
Table A.4
a
"In Table A.4, replace contents of footnote by:
For sequence B, only the tests of 9.8 shall be performed on 3 samples of maximum rating I with
n
minimum rating I . For sequence E , only the test 9.9.2.2 shall be performed on one sample of
Δn 0
all ratings I with minimum rating I .
n Δn
52. Annex G Replace all modifications to Annex G by
"Add “G.1 General” before introduction and renumber all clauses accordingly.
G.4.2.3 Marking of the assembled circuit breaker and r.c. unit (RCBO)
Replace all paragraphs of G.4.2.3 by the following:
Marking c) on the r.c. unit, if lower than the maximum rated voltage of the circuit-
breaker with which the r.c. unit may be assembled, shall remain visible after assembly.
The marking of the maximum rated current of the circuit-breaker with which the r.c. unit
may be assembled shall not be visible after assembly.
Marking I) of the r.c. unit, if applicable, shall always remain visible after assembly.
G.4.3 Instructions for assembly and operation
Delete the second dashed item (“method of assembly”).
G.5.1 General
In the last sentence of G.5.1, replace “G.5.4” by “G.6.4”.
G.5.4 Electrical compatibility
Delete the first paragraph.
G.6.4 Verification of marking and constructional requirements of RCBOs
In the first paragraph, replace” G.3.1, G.3.2, G.3.3, G 4.1, G.4.2, G.4.3 and G.4.4” by
“G.4.1, G.4.2, G.4.3, G 5.1, G.5.2, G.5.3 and G.5.4”.
In the second paragraph, replace “G.4.1” by “G.5.1”."
53. Annex J Replace
“Add the following new Annexes J, K and L”
by
“Replace Annexes ZE and ZF by the following new Annexes J and K ”

Item Clause Common modifications
54. Annex J In the first paragraph, replace
J.1
“with screwless terminals”
by
“with universal screwless terminals”
55. Annex J
Replace Note 1 by
J.1
“NOTE 1  Non-universal terminals are subject to special national conditions.”
56. Annex J Delete Note 1 to entry in Definition J.3.3.
J.3.3
57. Annex J
Replace
J.6
“Non-universal terminals:”
by
“Non-universal terminals (if accepted by Special National Conditions):”
58. Annex J Replace Table J.1 by
J.8.2
Table J.1 – Connectable conductors
Table J.1
Connectable conductors and their theoretical diameter
Rigid Flexible
Solid Stranded
2 2
mm ∅ mm ∅ mm mm ∅ mm
1,0 1,2 1,4 1,0 1,5
1,5 1,5 1,7 1,5 1,8
2,5 1,9 2,2 2,5 2,3
4,0 2,4 2,7 4,0 2,9
NOTE Diameters of the largest rigid and flexible conductors are based on IEC 60228.

59. Annex J Delete the last four references (ASTM B172-01a, ICEA S-19-81 / NEMA WC3,
J.10
ICEA S-66-524 / NEMA WC7 and ICEA S-68-516 / NEMA WC8).
60. Annex K Delete Note 1.
61. Annex K
At the end of the second paragraph, delete “(AWG equal to or greater than 12)”.
K.1
62. Annex K
Delete Note 1.
63. Annex L Delete Annex L.
– 11 – EN 61009-1:2012/A1:2014
Item Clause Common modifications
64. Annex ZA Add the following new modifications:
"Annex ZA (normative) Normative references to international publications with
their corresponding European publications
Delete the reference to IEC 60051.
Add the following new references to the existing list:
Publication Year Title EN/HD Year
IEC 60228 2004 Conductors of insulated cables EN 60228 2005
+ corr. May 2005
IEC 60364-4-44 (mod) 2007 Low-voltage electrical installations HD 60364-4-444 2010
+ corr. May 2010 Part 4-44: Protection for safety - + corr. July 2010
Protection against voltage + AC:2012 2012
disturbances and electromagnetic
disturbances
IEC 60664-3 - Insulation coordination for EN 60664-3 -
equipment within low-voltage
systems
Part 3: Use of coating, potting or
moulding for protection against
pollution
1)
IEC 60695-2-10 - Fire hazard testing EN 60695-2-10 -
Part 2-10: Glowing/hot-wire based
test methods - Glow-wire
apparatus and common test
procedure
IEC 60695-2-11 2000 Fire hazard testing EN 60695-2-11 2001
+ corr. January 2001 Part 2-11: Glowing/hot-wire based
test methods - Glow-wire
flammability test method for end-
products
Replace the reference to IEC 61543 by the following:
IEC 61543 1995 Residual current-operated EN 61543 1995
- - protective devices (RCDs) for + corr. December 1997
+ A1 (mod) 2004 household and similar use - + A11 2003
- - Electromagnetic compatibility + corr. May 2004
+ A2 2005 + A2 2006
- - + A12 2005
"
65. Annex ZD Add a new modification:
"Annex ZD (normative) Classification of RCBOs Type B and C up to and
including 63A into energy limiting classes
Replace the first sentence after Table ZD.2 by:
“The maximum I²t values measured during the test sequence F or F as applicable
0 1
serve as reference values for the classification.”"

1)
EN 60695-2-10 is superseded by EN 60695-2-10:2013, which is based on IEC 60695-2-10:2013.

Item Clause Common modifications
66. Annex ZXX Add a new modification:
"Annex ZXX (informative) List of clauses that require retesting
Replace the contents of Annex ZXX by
“Based on EN 61009-1:2012, the following tests and/or requirements have been
technically modified and may require retesting or inspection as applicable:
− 9.5 Test of reliability of screw-type terminals for external copper conductors
− 9.7.7.5 Verification of the behaviour of components bridging the basic insulation
− 9.15 Test of resistance to abnormal heat and to fire” "
67. Bibliography Delete “IEC 60228”.
Replace
“IEC 60664-5”
by
“EN 60664-5”.
Delete “IEC 60695-2-11:2000”.
IEC 61009-1 ®
Edition 3.0 2012-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Residual current operated circuit-breakers with integral overcurrent protection

for household and similar uses (RCBOs) –

Part 1: General rules
Interrupteurs automatiques à courant différentiel résiduel avec dispositif de

protection contre les surintensités incorporé pour usages domestiques et

analogues (DD) –
Partie 1: Règles générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XA
CODE PRIX
ICS 29.120.50 ISBN 978-2-83220-019-3

– 2 – 61009-1 Amend.1 © IEC:2012
FOREWORD
This amendment has been prepared by subcommittee 23E: Circuit-breakers and similar
equipment for household use, of IEC technical committee 23: Electrical accessories.
The text of this amendment is based on the following documents:
FDIS Report on voting
23E/741/FDIS 23E/745/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.
The committee has decided that the contents of this amendment and the base publication 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.
_____________
1 Scope
Delete Note 8 and replace it by the following paragraph and new Note 8:
For RCBOs incorporated in, or intended only for association with socket-outlets, the
requirements of this standard may be used, as far as applicable, in conjunction with the
requirements of IEC 60884-1 or the national requirements of the country where the product is
placed on the market.
NOTE 8 Residual current-operated protective devices (RCDs) incorporated in, or intended only for association
with socket-outlets, can either meet IEC 62640 or this standard.
2 Normative references
Delete the reference to IEC 60051.
Add to the existing list, the following new references:
IEC 60228:2004, Conductors of insulated cables
IEC 60364-4-44:2007, Low-voltage electrical installations – Part 4-44: Protection for safety –
Protection against voltage disturbances and electromagnetic disturbances
IEC 60664-3, Insulation coordination for equipment within low-voltage systems – Part 3: Use
of coating, potting or moulding for protection against pollution

61009-1 Amend.1 © IEC:2012 – 3 –
IEC 60695-2-10, Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods –
Glow-wire apparatus and common test procedure
IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing /hot-wire based test methods
– Glow-wire flammability test method for end-products
Replace the reference to IEC 61543:1995 by the following new reference:
IEC 61543:1995, Residual current -operated protective devices (RCDs) for household and
similar use – Electromagnetic compatibility
Amendment 1:2004
Amendment 2:2005
4.10 According to the method of connection
In the subclause, replace the existing text and note by the following:
– RCBOs, the electrical connections which are not associated with the mechanical
mounting;
– RCBOs, the electrical connections which are associated with the mechanical mounting.
NOTE Examples of this type are:
– plug-in type;
– bolt-on type;
– screw-in type.
Some RCBOs may be of the plug-in type or bolt-on type on the line side only, the load terminals being usually
suitable for wiring connection.
Add the following new subclause:
According to the type of terminals
4.13
– RCBOs with screw-type terminals for external copper conductors;
– RCBOs with screwless type terminals for external copper conductors;
NOTE 1 The requirements for RCBOs equipped with these types of terminals are given in Annex J.
– RCBOs with flat quick-connect terminals for external copper conductors;
NOTE 2 The requirements for RCBOs equipped with these types of terminals are given in Annex K.
– RCBOs with screw-type terminals for external aluminium conductors.
NOTE 3 The requirements for RCBOs equipped with this type of terminal are given in annex L.
Table 2 – Limit values of break time and non-actuating time for alternating residual
currents (r.m.s. values) for type AC and A RCBO
In the table, replace the word “non-operating” by “non-actuating".
c)
In the table, at the end of Footnote , add the following text:
For the tests of 9.9.1.3 and 9.9.1.4 b), the current I is established so that the vector sum IΔt + I is equal to the
Δt n
lower limit of the overcurrent instantaneous tripping range, according to type B, C or D, as applicable.
6 Marking and other product information
Replace the contents of item l) by the following:
l) the position of use, if necessary;

– 4 – 61009-1 Amend.1 © IEC:2012
Replace the third paragraph after Note 1 by the following:
If, for small devices, the space available does not allow all the above data to be marked, at
least the information under d), f), n), p) and r) (only for type A) shall be marked and visible
when the device is installed. The information under a), b), c), h) , l), r) (only for type AC) and
s) may be marked on the side or on the back of the device and be visible only before the
device is installed. The information under q) may be on the inside of any cover which has to
be removed in order to connect the supply wires. Any remaining information not marked shall
be given in the manufacturer's catalogues.
Replace in the eleventh paragraph after Note 1, the word “circuit” by “conductor”.
Add the following text at the end of Clause 6:
For universal terminals (for rigid-solid, rigid-stranded and flexible conductors):
– no marking.
For non-universal terminals:
– terminals declared for rigid-solid conductors only shall be marked by the letters “s” or
"sol";
– terminals declared for rigid (solid and stranded) conductors only shall be marked by the
letter "r".
The markings should appear on the RCBO or, if the space available is not sufficient, on the
smallest package unit or in technical information.
8.1.3 Clearances and creepage distances (see Annex B)
Replace the existing text in this subclause by the following:
The minimum required clearances and creepage distances are given in Table 7 which is
based on the RCBO being designed for operating in an environment with pollution degree 2.
Compliance for item 1 in Table 7 is checked by measurement and by the test of 9.7.7.4.1 and
9.7.7.4.2. The test is carried out with samples not submitted to the humidity treatment
described in 9.7.1.
The clearances of items 2 and 4 may be reduced provided that the measured clearances are
not shorter than the minimum allowed in IEC 60664-1 for homogenous field conditions.
In this case, after the humidity treatment described in 9.7.1, compliance for item 2 and 4 and
arrangements of 9.7.2 items b), c), d) and e) is checked in the following order:
– Tests according to 9.7.2 to 9.7.6 as applicable;
– Test according to 9.7.7.2 is applied with test voltages given in Table 19 with test
arrangements of 9.7.2 items b), c), d), e).
If measurement does not show any reduced clearance, test 9.7.7.2 is not applied.
Compliance for item 3 in Table 7 is checked by measurement.
NOTE 1 All measurements required in 8.1.3 are carried out in Test sequence A on one sample and the tests
9.7.7.2 are carried out before 9.7.1 on three samples of Test sequence B.
Parts of PCBs connected to the live parts protected against pollution by the use of a type 2
protection according to IEC 60664-3 are exempt from this verification.

61009-1 Amend.1 © IEC:2012 – 5 –
The insulating materials are classified into material groups on the basis of their comparative
tracking index (CTI) according to 4.8.1 of IEC 60664-1:2007.
NOTE 2 Information on the requirements for design of solid insulation and appropriate testing is provided in
IEC 60664-1:2007, 5.3 and 6.1.3.
NOTE 3 For clearances on printed wiring material, the following Note 3 in Table F.2 in 60664-1:2007 can be used:
“For printed wiring material, the values for pollution degree 1 apply except that the value should not be less than
0,04 mm, as specified in Table F.4.” For creepage distances on printed wiring material, distances in Table F.4 in
60664-1:2007 can be used if protected with a coating meeting IEC 60664-3 requirements and tests.
NOTE 4 The dimensioning of clearances and creepage distances for spacings equal to or less than 2 mm for
printed wiring board may be optimised under certain conditions in case of use of IEC 60664-5. Only humidity levels
HL 2 and HL3 are considered.
Table 7 – Minimum clearances and creepage distances
Delete, in this table, point 5 in the first column and the existing Note 3.
e
Replace, in the table, the last sentence of the existing Footnote by the following text:
When interpolating, linear interpolation shall be used and values shall be rounded to the same number of digits as
the values picked up from the tables. For determination of creepage distances, see Annex B.
8.1.4.4
In the subclause, replace the existing text by the following:
Current-carrying parts including parts intended for protective conductors, if any, shall be
made of a metal having, under the conditions occurring in the equipment, mechanical
strength, electrical conductivity and resistance to corrosion adequate for their intended use.
Examples of suitable materials are given below:
– copper;
– an alloy containing at least 58 % copper for parts worked cold, or at least 50 % copper for
other parts;
– other metal or suitably coated metal, no less resistant to corrosion than copper and having
mechanical properties no less suitable.
In case of using ferrous alloys or suitably coated ferrous alloys, compliance to resistance to
corrosion is checked by a test of resistance to rusting (see 9.25).
The requirements of this subclause do not apply to contacts, magnetic circuits, heater
elements, bimetals, shunts, parts of electronic devices or to screws, nuts, washers, clamping
plates, similar parts of terminals and parts of the test circuit.
8.1.5.1
Delete the second paragraph and the note in this subclause.
Replace the contents of the last paragraph by the following:
Compliance is checked by inspection, by the tests of 9.5 for screw-type terminals, by specific
tests for plug-in or bolt-on RCBOs included in the standard, or by the tests of Annexes J, K or
L, as relevant for the type of connection.
8.1.5.2
Replace the existing text and Table 8 by the following:

– 6 – 61009-1 Amend.1 © IEC:2012
RCBOs shall be provided with:
– either terminals which shall allow the connection of copper conductors having nominal
cross-sectional areas as shown in Table 8;
NOTE Examples of possible designs of screw-type terminals are given in Annex IC.
– or terminals for external untreated aluminium conductors and with aluminium screw-type
terminals for use with copper or with aluminium conductors according to Annex L.
Compliance is checked by inspection, by measurement and by fitting, in turn, one conductor
of the smallest and one of the largest cross-sectional area as specified.
Table 8 – Connectable cross-sections of copper
conductors for screw-type terminals
a) b)
Rated current Range of nominal cross-section to be clamped
A mm
c)
Rigid (solid or stranded )
Greater than Up to and including Flexible conductors
conductors
– 13 1 to 2,5 1 to 2,5
13 16 1 to 4 1 to 4
16 25 1,5 to 6 1,5 to 6
25 32 2,5 to 10 2,5 to 6
32 50 4 to 16 4 to 10
50 80 10 to 25 10 to 16
80 100 16 to 35 16 to 25
100 125 25 to 50 25 to 35
NOTE Information on AWG is given in Annex ID.
a)
A range of RCBOs having the same fundamental design and having the same design and construction of
terminals, the terminals are fitted with copper conductors of the smallest cross-section for the minimum rated
current and largest cross-section for the maximum rated current, as specified, solid and stranded, as applicable.
b)
It is required that, for current ratings up to and including 50 A, terminals be designed to clamp solid conductors as
well as rigid stranded conductors. Nevertheless, it is permitted that terminals for conductors having cross-sections
2 2
from 1 mm up to 6 mm be designed to clamp solid conductors only.
c)
2 2
Rigid stranded conductors shall be used for conductors having cross-sections from 1,5 mm up to 50 mm
and shall be in compliance with class 2 of IEC 60228, related to stranded conductors for single-core.

8.3 Dielectric properties and isolating capability
In the last paragraph, delete the words “and 9.20”.
Table 10 – Time-current operating characteristics
Delete the note in the table.
8.13 Behaviour of RCBOs in case of a single-phase overcurrent through a three-pole
or four-pole RCBO
Replace the text of this subclause by “Void”.
Table 12 – List of type tests
In the table, delete the following items:
– Limiting values of the non-operating current under overcurrent conditions 9.18
– Resistance of the insulation against an impulse voltage 9.20
In the table, add the following item at the end of the existing list:

61009-1 Amend.1 © IEC:2012 – 7 –
– Resistance to rusting 9.25
9.5 Test of reliability of terminals for external conductors
Replace the title of the subclause by the following:
9.5 Tests of reliability of screw-type terminals for external copper conductors
9.5.1
In the subclause, replace the contents and Table 15 by the following:
The terminals are fitted with copper conductors of the same type (solid, stranded or flexible)
of the smallest and largest cross-sections specified in Table 8.
The terminal shall be suitable for all types of conductors: rigid (solid or stranded) and flexible,
unless otherwise specified by the manufacturer.
Terminals shall be tested with the minimum and maximum cross-section of each type of
conductors on new terminals as follows:
– Tests for solid conductors shall use conductors having cross-sections from 1 mm up to
6 mm , as applicable.
– Tests for stranded conductors shall use conductors having cross-sections from 1,5 mm
up to 50 mm , as applicable.
– Tests for flexible conductors shall use conductors having cross-sections from 1 mm up to
35 mm , as applicable.
NOTE Information on AWG is given in Annex ID.
The conductor is inserted into a new terminal for the minimum distance prescribed or, where
no distance is prescribed, until it just projects from the far side, and in the position most likely
to assist the wire to escape.
The clamping screws are then tightened with a torque equal to two-thirds of that shown in the
appropriate column of Table 14.
Each conductor is then subjected to a pull of the value, in Newton, shown in Table 15,
according to the relevant cross-section of the tested conductor.
The pull is applied without jerks, for 1 min, in the direction of the axis of the conductor space.
When it is necessary, the tested values, for the different cross-sections with the relevant
pulling force, shall be clearly indicated in the test report.
Table 15 – Pulling forces
Cross-section of the 1 up to and Above 4 up to Above 6 up to Above 10 up to Above 16 up to
conductor inserted in including 4 and including and including and including and including
the terminal 6 10 16 50
mm
Pull
50 60 80 90 100
N
During the test, the conductor shall not move noticeably in the terminal.

– 8 – 61009-1 Amend.1 © IEC:2012
9.5.3
In the subclause, replace the first sentence by the following:
The terminals are fitted with the largest cross-section area specified in Table 8, for stranded
and/or flexible copper conductor.
Delete Table 16.
9.7.1.4 Condition of the RCBO after the test
Replace the existing text by the following:
After this treatment, the sample shall show no damage within the meaning of this standard
and shall withstand the tests of 9.7.2, 9.7.3, 9.7.4, 9.7.6 and 9.7.7.2 (if applicable).
9.7.7.1 Verification of impulse withstand voltage across the open contacts
(suitability for isolation)
Replace the existing title and text by the following:
9.7.7.1 General testing procedure for the impulse withstand voltage tests
The impulses are given by a generator producing positive and negative impulses having a
front time of 1,2 μs, and a time to half-value of 50 μs, the tolerances being as follows:
± 5 % for the peak value;
± 30 % for the front time;
± 20 % for the time to half-value.
For each test, five positive impulses and five negative impulses are applied. The interval
between consecutive impulses being at least 1 s for impulses of the same polarity and being
at least 10 s for impulses of the opposite polarity.
When performing the impulse voltage test on complete RCBO, the attenuation or amplification
of the test voltage shall be taken into account. It needs to be assured that the required value
of the test voltage is applied across the terminals of the equipment under test.
The surge impedance of the test apparatus shall have a nominal value not higher than 500 Ω.
NOTE 1 In 9.7.7.2, for the verification of clearances within the basic insulation, on complete RCBO, a very low
impedance of the generator is needed for the test. For this purpose, a hybrid generator with a virtual impedance of
2 Ω is appropriate if internal components are not disconnected before testing. However, in any case, a
measurement of the correct test voltage directly at the clearance is needed.
The shape of the impulses is adjusted with the RCBO under test connected to the impulse
generator. For this purpose appropriate voltage dividers and voltage sensors shall be used. It
is recommended to disconnect surge protective components before testing.
NOTE 2 For RCBOs with incorporated surge arresters that cannot be disconnected, the shape of the impulses is
adjusted without connection of the RCBO to the impulse generator.
Small oscillations in the impulses are allowed, provided that their amplitude near the peak of
the impulse is less than 5 % of the peak value.
For oscillations on the first half of the front, amplitudes up to 10 % of the peak value are
allowed.
61009-1 Amend.1 © IEC:2012 – 9 –
There shall be no disruptive discharge (sparkover, flashover or puncture) during the tests.
NOTE 3 It is recommended that an oscilloscope be used to observe the impulse voltage in order to detect
disruptive discharge.
9.7.7.2 Verification of impulse withstand voltage for the parts not tested in 9.7.7.1
In the subclause, replace the existing title and text by the following:
9.7.7.2 Verification of clearances with the impulse withstand voltage
If the measurement of clearances of items 2 and 4 in Table 7 and arrangements given in
9.7.2 b), c) d) and e) shows a reduction of the required length, this test applies. This test is
carried out immediately after the measurement of the insulation resistance in 9.7.4.
NOTE The measurement of the clearances can be replaced by this test.
The test is carried out on a RCBO fixed on a metal support and being in the closed position.
The test impulse voltage values shall be chosen in Table 19 in accordance with the rated
impulse voltage of the RCBO as given in Table 5. These values are corrected for barometric
pressure and/or altitude at which the tests are carried out, according to Table 19.
A first series of tests is made applying the impulse voltage between:
– the phase pole(s) and the neutral pole (or path) connected together,
– and the metal support connected to the terminal(s) intended for the protective
conductor(s), if any.
A second series of tests is made applying the impulse voltage between:
– the phase pole(s), connected together,
– and the neutral pole (or path) of the RCBO, as applicable.
A third series of tests is made applying the impulse voltage between arrangements given in
9.7.2 b), c), d) and e) and not tested during the two first sequences described here above.
There shall be no disruptive discharge. If, however, only one such disruptive discharge
occurs, ten additional impulses having the same polarity as that which caused the disruptive
discharge are applied, the connections being the same as those with which the failure
occurred.
No further disruptive discharge shall occur.
Table 19 − Test voltage for verification of impulse withstand voltage for the parts not
tested in 9.7.7.1
Replace the title of the table by the following:
Table 19 – Test voltage for verification of impulse withstand voltage
9.7.7.3 Verification of leakage currents across open contacts (suitability for isolation)
Replace the first paragraph of the subclause by the following:
Each pole of a RCBO having been submitted to one of the applicable tests of 9.12.11.2.1,
9.12.11.2.2, 9.12.11.3, 9.12.11.4b), 9.12.11.4c) is supplied at a voltage 1,1 times its rated
operational voltage, the RCBO being in the open position.

– 10 – 61009-1 Amend.1 © IEC:2012
Add the following new subclauses 9.7.7.4, 9.7.7.4.1, 9.7.7.4.2, 9.7.7.4.3, 9.7.7.5:
9.7.7.4 Verification of resistance of the insulation of open contacts and basic
insulation against an impulse voltage in normal conditions
9.7.7.4.1 General
These tests are not preceded by the humidity treatment described in 9.7.1.
NOTE The tests in 9.7.7.4, as stated in requirements of 8.1.3, will be carried out before 9.7.1 on three samples of
Test sequence B.
The test impulse voltage values shall be chosen from Table 28, in accordance with the rated
voltage of the installation for which the RCBO is intended to be used as given in Table 5.
These values are corrected for barometric pressure and/or altitude at which the tests are
carried out, according to Table 28.
Table 28 – Test voltage for verifying the suitability for isolation, referred to the rated
impulse withstand voltage of the RCBO and the altitude where the test is carried out
Nominal voltage of the Test voltages at corresponding altitude
installation
U a.c. peak
V 1,2/50
kV
Single-phase system Sea level 200 m 500 m 1 000 m 2 000 m
with mid-point earthed
3,5 3,5 3,4 3,2 3,0
a)
120/240
Single phase system
6,2 6,0 5,8 5,6 5,0
b)
120/240 240
Three-phase systems
6,2 6,0 5,8 5,6 5,0
230/400
a)
For installation practice in Japan.
b)
For installation practice in North American countries.

9.7.7.4.2 RCBO in opened position
The series of tests is carried out on a RCBO fixed on a metal support as in normal use.
The impulses are applied between:
– the line terminals connected together;
– and the load terminals connected together with the contacts in the open position.
There shall be no disruptive discharges during the test.
9.7.7.4.3 RCBO in closed position
The series of tests is carried out on a RCBO fixed on a metal support, wired as in normal use
and being in closed position.
All components bridging the basic insulation have to be disconnected.
NOTE If necessary, separate samples can be prepared by the manufacturer.
A first series of tests is made, the impulses being applied between:
– the phase pole(s) and the neutral pole (or path) connected together;
– and, the metal support connected to the terminal(s) intended for the protective
conductor(s), if any.
61009-1 Amend.1 © IEC:2012 – 11 –
A second series of tests is made, the impulses being applied between:
– the phase pole(s), connected together;
– and the neutral pole (or path) of the RCBO.
There shall be no disruptive discharge. If, however, only one
...