EN 60934:2001/A1:2007

SLOVENSKI STANDARD
01-november-2007
Odklopniki za opremo (CBE) (IEC 60934:2000/A1:2007)
Circuit-breakers for equipment (CBE) (IEC 60934:2000/A1:2007)
Geräteschutzschalter (GS) (IEC 60934:2000/A1:2007)
Disjoncteurs pour équipement (DPE) (IEC 60934:2000/A1:2007)
Ta slovenski standard je istoveten z: EN 60934:2001/A1:2007
ICS:
29.120.40 Stikala Switches
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 60934/A1
NORME EUROPÉENNE
February 2007
EUROPÄISCHE NORM
ICS 29.120.50; 29.120.40
English version
Circuit-breakers for equipment (CBE)
(IEC 60934:2000/A1:2007)
Disjoncteurs pour équipement (DPE) Geräteschutzschalter (GS)
(CEI 60934:2000/A1:2007) (IEC 60934:2000/A1:2007)

This amendment A1 modifies the European Standard EN 60934:2001; it was approved by CENELEC on
2007-02-01. 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 60934:2001/A1:2007 E

Foreword
The text of document 23E/624/FDIS, future amendment 1 to IEC 60934:2000, prepared by SC 23E,
Circuit-breakers and similar equipment for household use, of IEC TC 23, Electrical accessories, was
submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to
EN 60934:2001 on 2007-02-01.
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
(dow) 2010-02-01
with the amendment have to be withdrawn
__________
Endorsement notice
The text of amendment 1:2007 to the International Standard IEC 60934:2000 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
NORME CEI
INTERNATIONALE
IEC
INTERNATIONAL
STANDARD
AMENDEMENT 1
AMENDMENT 1
2007-01
Amendement 1
Disjoncteurs pour équipement (DPE)

Amendment 1
Circuit-breakers for equipment (CBE)

© IEC 2007 Droits de reproduction réservés ⎯ Copyright - all rights reserved
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
N
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

60934 Amend. 1 © IEC:2007 – 3 –
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/624/FDIS 23E/627/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 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.
_____________
Page 15
1 Scope and object
Replace the title of Clause 1 by the following new title:
1 Scope
th
Replace the 4 paragraph of Clause 1 by the following new paragraph:
It is applicable for a.c. not exceeding 440 V and/or d.c. not exceeding 250 V, a rated current
not exceeding 125 A and a rated short-circuit capacity not exceeding 3 000 A.
Replace the sixth paragraph by the following new paragraph:
This standard also covers CBEs in which the means for automatic interruption are inhibited or
not present by construction (see 3.1.3).
Add, at the end of Clause 1, the following new paragraph:
CBEs of M-type (see 4.4.2) and S-type (see 4.4.3) method of operation having performance
category PC2 (see 5.2.5.2) and complying with the additional requirements of Annex L are
suitable for isolation.
Delete NOTE 4.
60934 Amend. 1 © IEC:2007 – 5 –
Page 19
3 Definitions
Replace definition 3.1.3 by the following new definition 3.1.3:
3.1.3
E-type CBE
CBE without overcurrent releases, equipped or not with other releases such as tripping by
voltage or by mechanical means
NOTE The relevant specific requirements are given in Annex K.
Page 49
4 Classification
On page 51, replace the title of 4.5.3 by the following new title:
4.5.3 E-type CBEs
Add the following new note:
NOTE The relevant specific requirements are given in Annex K.
On page 53, add the following new subclause:
4.10 Suitability for isolation
– not suitable for isolation
– suitable for isolation (see Annex L)
5 Characteristics of CBEs
Page 57
5.2.5 Rated conditional short-circuit current (I )
nc
Add "(optional)" in the title.
Delete NOTE 1 and rename NOTE 2 as "NOTE".
5.2.5.1 Rated conditional short-circuit current performance category PC1 (I )
nc1
Add "(optional)"in the title.
Page 59
6 Marking and other product information
Add the following item after r):
s) Symbol of suitability for isolation on the device, when applicable.

60934 Amend. 1 © IEC:2007 – 7 –
Replace the subsequent paragraph by the following new paragraph and the new NOTE 1:
If, on small apparatus, the available space is insufficient for all the listed markings, at least a),
b) and, if applicable, g), h) and s) shall be marked on the device, and, if possible, c) and d),
whilst the other information shall be given in the manufacturer's catalogue.
NOTE 1 Visibility from the front – though desirable – is not compulsory for CBEs, because CBEs are specified by
OEMs for their equipment on the basis of the information provided by the CBE manufacturers. Due to lack of space
on the usually small CBEs it may not be possible to have the marking on the front part visible after installation. If
the CBE is not marked on a visible position the manufacturer should inform the OEM to mark his equipment
accordingly.
Renumber the two other notes in the same clause as NOTE 2 and NOTE 3.
Page 63
8 Requirements for construction and operation
8.1.2 Mechanism
Add, at the end of the subclause, the following new paragraph:
Additional requirements for the mechanism of CBEs suitable for isolation are given in L.8.1.2.
8.1.3 Clearances and creepage distances (see annex B)
On page 65, add the following new paragraph after Note 3:
Additional requirements for clearance and creepage distances for CBEs suitable for isolation
are given in L.8.1.3.
Page 91
8.4.2 Clearances for insulation coordination
Add, at the end of the subclause, the following new paragraph:
Requirements for isolating capability of CBEs suitable for isolation are given in L.8.4.2.
Page 97
8.12 Resistance to rusting
Table 11
In section 3, third column, first cell, replace "I < 500 A" by "I ≤ 500 A".
cn cn
In section 3, last two columns, replace the values of the fourth subsection by those of the
second one, and delete all the values in the first and third subsections.
In section 3, fourth column, first, second and third cell, replace “IEC 60898” by “IEC 60898-1”.

60934 Amend. 1 © IEC:2007 – 9 –
Page 99
9 Tests
9.1.1 The characteristics of a CBE are verified by means of type tests.
Add, after table 13, the following new text:
Additional tests for CBEs suitable for isolation are given in L.9.7.7.
Page 131
9.11.4 Behaviour at rated short-circuit capacity
Replace the first sentence by the following new sentence:
This test is optional, except for CBEs suitable for isolation.
Add, at the end of the subclause, the following new paragraph:
After each operation, the indicating means shall show the open position of the contacts.
Page 135
9.12.4.1 General
Add, at the end of the subclause, page 137, the following new dashed item:
– for CBEs of category PC2 tested according to 9.12.4.3, after each operation, the indicating
means shall show the open position of the contacts.
Page 161
Annex C
Table C.1
Add in test sequence B, after 9.7.6, in the second and third column respectively:
“L.9.7.7” and “Test of suitability for isolation, if applicable”
In the first column of test sequences E and G, replace "(optional)" by:
“(optional, except for CBEs suitable for isolation)”
Add, in the first column of test sequence F:
“(optional)”.
Add, in the second column of test sequences E and G, caption (*) to 9.11.1.3.

60934 Amend. 1 © IEC:2007 – 11 –
Add the following text below the table:
(*) After this verification, CBEs suitable for isolation are additionally submitted to the test of L.9.7.7.2 (Verification
of leakage currents across open contacts) before being tested according to 9.11.1.4.
Page 169
Annex E
In Figure E.13, page 183, for the smaller size of the male tab, replace "F1" by "F2".
Page 187
Annex F
Replace Figures F.1 through F.3 and F.5 through F.8 by the following new figures (the text
related to figures remains unchanged):

I
I I
S B
nc
I
cn
CB
CBE
Circuit-breaker
Prospective short-circuit current
IEC  172/07
Figure F.1 – Thermal only CBE, backed up by thermal magnetic circuit-breaker

Joule integral I t
60934 Amend. 1 © IEC:2007 – 13 –

A
r.m.s.
I
nc
CBE
Fuse
I I
S B
CBE
Prospective short-circuit current
IEC  173/07
Figure F.2 – Thermal only CBE, backed up by a fuse

SCPD
I
S
CBE
Prospective short-circuit current
IEC  174/07
Figure F.3 – Thermal-magnetic CBE backed up by thermal-magnetic circuit-breaker

Joule integral I t
Joule integral I t
60934 Amend. 1 © IEC:2007 – 15 –

CBE
I
cn
I I
S
nc
I
B
SCPD
Prospective short-circuit current
IEC  175/07
Figure F.5 – Thermal CBE backed up by a hydraulic-magnetic circuit-breaker

Circuit-breaker
I
S
CBE
Prospective short-circuit current
IEC  176/07
Figure F.6 – Energy-limiting CBE, backed up by thermal-magnetic circuit-breaker

Time
Time
60934 Amend. 1 © IEC:2007 – 17 –

Fuse
I
S
CBE
Prospective short-circuit current
IEC  177/07
Figure F.7 – Energy-limiting CBE, backed up by a fuse

I
C cn
I
B
C
I
B
I
cn
I
nc
A
B
A
B
Prospective short-circuit current Prospective short-circuit current
IEC  178/07 IEC  179/07
Figure F.8a – Proper coordination Figure F.8b – Improper coordination
Figure F.8 – Examples illustrating proper and improper coordination
Joule integral I t
Joule integral I t
Joule integral I t
60934 Amend. 1 © IEC:2007 – 19 –
Page 217
Annex H
Replace the existing Table H.1 by the following new Table H.1:
Table H.1 – Nominal voltages and corresponding rated impulse voltages
Voltage line- Nominal voltages presently used in the world Rated impulse voltage
to-neutral
for equipment
derived from
nominal
Overvoltage category
voltages a.c.
or d.c. up to
Three-phase Three-phase Single-phase Single-phase I II III
and including
four-wire three-wire two-wire three-wire

systems with systems systems a.c. systems a.c.
V
earthed unearthed or d.c. or d.c.
neutral
V V V V
12,5      24
50 Not applicable Not applicable 25       30 30-60 330 500 800
42       48
100 66/115 66 60 500 800 1500
b c c
115,
120/208  100  100-200
150 120, 800 1500 2500
110, 110-120
127/220 120 120-240
220/380,
220, 230, 240
230/400,
260, 277, 347
300 240/415, 220 220-440 1500 2500 4000
a
380, 400 , 415
260/440,
440, 480
277/480
347/600,
380/660,
400/690, 500, 577, 600 480 480-960 2 500 4000 6000
417/720,
480/830
1 000  690, 720, 1 000 4 000 6 000 8 000
830, 1 000
a
For 3 phase-3 wire systems derived from 3 phase-4 wire supply with earthed neutral point.
b
Practice in the United States of America and in Canada.
c
Practice in Japan
60934 Amend. 1 © IEC:2007 – 21 –
Page 223
Replace the existing Annex K by the following new Annex K:
Annex K
(normative)
Additional requirements for electrical performance of E-type CBEs

K.1 An E-type CBE shall be identical to the CBE from which it is derived except for the
omission of overcurrent protection elements. For overcurrent protection, it relies on back-up
devices.
K.2 An E-type CBE shall satisfy the requirements as specified in sections 1 and 2 of Tables
11 or 12, as applicable.
K.3 An E-type CBE is considered to comply with this standard, if the CBE, from which it is
derived, has been successfully tested in accordance with these require
...