EN IEC 60947-3:2021/prA1:2024
(Amendment)Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Niederspannungsschaltgeräte - Teil 3: Lastschalter, Trennschalter, Lasttrennschalter und Schalter-Sicherungs-Einheiten
Appareillage à basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-sectionneurs et combinés-fusibles
Nizkonapetostne stikalne in krmilne naprave - 3. del: Stikala, ločilniki, ločilna stikala in stikalni aparati z varovalkami - Dopolnilo A1
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2024
Nizkonapetostne stikalne in krmilne naprave - 3. del: Stikala, ločilniki, ločilna
stikala in stikalni aparati z varovalkami - Dopolnilo A1
Amendment 1 - Low-voltage switchgear and controlgear - Part 3: Switches,
disconnectors, switch-disconnectors and fuse-combination units
Niederspannungsschaltgeräte - Teil 3: Lastschalter, Trennschalter, Lasttrennschalter
und Schalter-Sicherungs-Einheiten
Appareillage à basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-
sectionneurs et combinés-fusibles
Ta slovenski standard je istoveten z: EN IEC 60947-3:2021/prA1:2024
ICS:
29.120.40 Stikala Switches
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
121A/599/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60947-3/AMD1 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-03-29 2024-06-21
SUPERSEDES DOCUMENTS:
121A/563/CD, 121A/572A/CC
IEC SC 121A : LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR
SECRETARIAT: SECRETARY:
France Mr Michaël LAHEURTE
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 23,TC 82,SC 121B
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights
of which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Amendment 1 - Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors,
switch-disconnectors and fuse-combination units
PROPOSED STABILITY DATE: 2028
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IEC CDV 60947-3 AMD1 © IEC 2024 2 121A/599/CDV
NOTE FROM TC/SC OFFICERS:
SC121A Officers support circulation of CDV for project IEC 60947-3/AMD1 ED4.
Secretary Note: NC experts are kindly requested to refer their comments to line number.
IEC CDV 60947-3 AMD1 © IEC 2024 3 121A/599/CDV
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
6 PART 3: SWITCHES, DISCONNECTORS, SWITCH-DISCONNECTORS
7 AND FUSE-COMBINATION UNITS
9 AMENDMENT 1
11 FOREWORD
12 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
13 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
14 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
15 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical
16 Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
17 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
18 may participate in this preparatory work. International, governmental and non-governmental organizations
19 liaising with the IEC also participate in this preparation. IEC collaborates closely with the International
20 Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two
21 organizations.
22 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
23 consensus of opinion on the relevant subjects since each technical committee has representation from all
24 interested IEC National Committees.
25 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
26 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
27 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
28 misinterpretation by any end user.
29 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
30 transparently to the maximum extent possible in their national and regional publications. Any divergence between
31 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
32 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
33 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
34 services carried out by independent certification bodies.
35 6) All users should ensure that they have the latest edition of this publication.
36 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
37 members of its technical committees and IEC National Committees for any personal injury, property damage or
38 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
39 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
40 Publications.
41 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
42 indispensable for the correct application of this publication.
43 9) Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
44 rights. IEC shall not be held responsible for identifying any or all such patent rights.
45 Amendment 1 to IEC 60947-3 ED4 has been prepared by subcommittee 121A: Low-voltage
46 switchgear and controlgear, of IEC technical committee 121: Switchgear and controlgear and
47 their assemblies for low voltage.
48 This amendment includes the following significant technical changes with respect to the current
49 edition:
50 – Addition of remotely operated devices
51 – Addition of a new Annex G defining the requirements for Battery Power Switches (PBS)
52 for use in battery storage systems,
53 – Addition of test requirements for short circuit making of single-phase operated switches
54 and switch-disconnectors
IEC CDV 60947-3 AMD1 © IEC 2024 4 121A/599/CDV
55 – Switches for photovoltaic applications with utilisation categories DC-PV1 and DC-PV2
56 can, subject to marking, be suitable for current flow in one or both directions.
57 – More clarity on the measurement of power loss in devices.
58 –
59 The text of this Amendment is based on the following documents:
Draft Report on voting
XX/XX/XXXX XX/XX/XXX
61 Full information on the voting for its approval can be found in the report on voting indicated in
62 the above table.
63 The language used for the development of this Amendment is English.
64 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
65 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
66 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
67 described in greater detail at www.iec.ch/publications/.
68 The committee has decided that the contents of this document will remain unchanged until the
69 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
70 specific document. At this date, the document will be
71 • reconfirmed,
72 • withdrawn,
73 • replaced by a revised edition, or
74 • amended.
75 ____________
76 2 Normative references
77 Add the following normative reference:
78 IEC 60068-2-14:2009, Environmental testing – Part 2-14: Tests – Test N: Change of
79 temperature
80 3.3 General terms
81 Add following terms:
82 3.3.11
83 Remotely operated equipment
84 switching equipment that is electrically operated from a point distant from the controlled
85 switching device
86 Note 1 to entry: A remotely operated switch can have an additional feature for local and/or manual (non -electrical)
87 operation.
88 Note 2 to entry: remote operation can be performed by an integral device or an auxiliary device associated with the
89 switching device, for example, motor operator or coils.
90 3.3.12
91 operating time of a remotely operated equipment
92 time measured from the instant when the switching operation is initiated at the switching device
93 to; (i) the closing of the main contacts (see 3.7.44 of IEC 60947-1:2020); or (ii) the opening of
94 the main contacts (see 3.7.39 of IEC 60947-1:2020)
95 Note 1 to entry: Operating times from closed to open (opening time) and from open to closed (closing time) can be
96 different.
IEC CDV 60947-3 AMD1 © IEC 2024 5 121A/599/CDV
97 4.2 According to the method of operation
98 4.2.2 Remotely operated equipment
99 Delete ‘under consideration’ and add the following:
100 – remotely operated
101 • self-powered remotely operated equipment
102 • externally powered remotely operated equipment
103 Type of remote operation:
104 • Opening and closing: both opening and close operation controllable from remote
105 • Opening only: only opening operation controllable from remote.
106 5 Characteristics
107 5.2 Type of equipment
108 Add the following dash:
109 – control method of the device
110 5.5 Control circuits
111 Subclause 5.5 of IEC 60947-1:2020 applies.
113 Add the following subclause:
114 5.5.3 Remote operation
115 The manufacturer shall declare the following:
116 a) Minimum and maximum values of voltage operating limits for the control supply and, as
117 applicable, corresponding frequency
118 b) the closing time, when applicable (3.7.44 of IEC 60947-1:2020)
119 c) the opening time (3.7.39 of IEC 60947-1:2020)
120 d) the type of operating signal
121 i) permanent signal
122 ii) single impulse
123 e) information on power consumption for remote operation
124 i) nominal power consumption and duration.
125 ii) inrush power consumption and duration, if applicable.
126 iii) connection arrangement.
127 6 Product information
128 6.1 Nature of information
129 Modify the dash for ‘rated impulse withstand voltage (see 5.3.1.3)’ in 6.1 of IEC 60947-1:2020 as
130 follows:
131 – rated impulse withstand voltage (see 5.3.1.3);
132 a) main power circuit of the equipment;
133 b) control circuits.
134 6.2 Marking
135 Replace Table 3 with the following;
IEC CDV 60947-3 AMD1 © IEC 2024 6 121A/599/CDV
Marking
Item Information
location
Indication of the open and close position. If symbols are used, the open position shall be
1.1 indicated by graphical symbol IEC 60417-5008:2002-10 and the closed position by Visible
graphical symbol IEC 60417-5007:2002-10 (see 8.1.6.1 of IEC 60947-1:2020).
1.2 Suitability for isolation. The appropriate symbols of Table 1 shall be used. Visible
Additional marking for disconnectors.
Devices of utilization category AC-20A, AC-20B, DC-20A, DC-20B, DC-PV0 and DC-
1.3 Visible
BPS0 shall be marked "Do not operate under load" adjacent to these categories, unless
the device has interlocking means to prevent such an operation.
Additional marking for remotely operated equipment.
1.4 Visible
When remote closing is provided this mode of operation shall be clearly indicated on the
product if a locking means in the OFF position is not provided,
2.1 Manufacturer’s name or trademark. Marked
2.2 Type designation or catalogue reference. Marked
Rated operational currents (or rated powers) with the corresponding rated operational
2.3 voltage and utilization category, see Clause 5.3.2 and Clause 5 and/or D.5.4 and/or Marked
G.5.4).
Value (or range) of the rated frequency or the indication "DC" (or the symbol
2.4 Marked
IEC 60417-5031:2002-10).
For fuse-combination units, the fuse type characteristics and maximum rated current
a
2.5 Marked
and the maximum power loss of the fuse-link.
2.6 IEC 60947-3, if the manufacturer claims compliance with this document. Marked
2.7 Degree of protection of enclosed equipment (see Annex C of IEC 60947-1:2020). Marked
Terminals shall be identified "load" and "line", unless the connection is immaterial
2.8 Marked
(see 9.3.4.4.1).
Neutral pole terminal, if applicable, shall be identified by the letter "N" (see 8.1.8.4 of
2.9 Marked
IEC 60947-1:2020).
2.10 Marked
When a protective earth terminal is provided, it shall be identified by the symbol
IEC 60417-5019:2006-08 (see 8.1.10.3 of IEC 60947-1:2020).
2.11 "+" and "−" polarities, if applicable. Marked
3.1 Classification of equipment if remotely controlled Literature
-remotely operated.
3.2 Rated insulation voltage. Literature
Rated impulse withstand voltage:
− Main power circuit of the equipment.
3.3 Literature
− Control circuits.
3.4 Pollution degree, if different from 3. Literature
3.5 Rated duty (see 5.3.5 and Clause A.2). Literature
3.6 Rated short-time withstand current and duration, where applicable. Literature
3.7 Rated short-circuit making capacity, where applicable. Literature
3.8 Rated cond
...
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