IEC TR 63196:2020

IEC TR 63196 ®
Edition 1.0 2020-01
TECHNICAL
REPORT
colour
inside
Switchgear and controlgear and their assemblies for low voltage –
Energy efficiency
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IEC TR 63196 ®
Edition 1.0 2020-01
TECHNICAL
REPORT
colour
inside
Switchgear and controlgear and their assemblies for low voltage –

Energy efficiency
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.015; 29.130.20 ISBN 978-2-8322-7796-6

– 2 – IEC TR 63196:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Contribution of low-voltage switchgear and controlgear and their assemblies to
energy efficiency . 9
5 General concepts of energy efficiency . 9
5.1 Concept of energy efficiency system . 9
5.1.1 System considerations . 9
5.1.2 System boundary description . 10
5.2 Limits of the energy efficiency concept . 11
5.2.1 Electrical energy efficiency and safety . 11
5.2.2 Availability of electrical energy and user decision . 11
6 Energy efficiency for switchgear, controlgear and their assemblies . 11
6.1 General . 11
6.2 Energy efficiency management system/optimization of the overall energy
consumption . 14
6.2.1 Optimization of energy consumption . 14
6.2.2 Electrical energy efficiency management . 14
6.2.3 Economic aspects . 16
6.2.4 Systems approach . 16
6.3 Energy efficiency measures . 17
6.3.1 Load shedding system (in combination with peak shaving) . 17
6.3.2 Benefit of fixed speed motor control systems . 18
6.3.3 Losses in switchgear and controlgear . 19
6.3.4 Minimization of semiconductor controller losses . 20
6.3.5 Power factor correction . 20
6.3.6 Energy efficiency of assemblies . 20
Bibliography . 22

Figure 1 – Overview of energy efficiency management . 5
Figure 2 – Key elements in energy efficiency definition . 10
Figure 3 – Role of low-voltage switchgear and controlgear in energy efficiency
management . 12
Figure 4 – Energy efficiency landscape concerning switchgear and controlgear and
their assemblies . 13
Figure 5 – Useful energy, energy loss and recovered energy . 17
Figure 6 – Poor and good energy efficiency practice in assembly layout . 21

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SWITCHGEAR AND CONTROLGEAR
AND THEIR ASSEMBLIES FOR LOW VOLTAGE – ENERGY EFFICIENCY

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
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The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC TR 63196, which is a technical report, has been prepared by committee 121: Switchgear
and controlgear and their assemblies for low voltage.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
121/44/DTR 121/47A/RVDTR
Full information on the voting for the approval of this technical report can be found in the report
on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC TR 63196:2020 © IEC 2020
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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INTRODUCTION
Energy efficiency (EE) is a horizontal topic spanning the IEC domain and may be dealt with in
standards in various forms across a wide range of technologies and for different products,
processes and services.
The horizontal nature of the topic and increasing integration of products, processes and
services entering the market implies that standard writers identify which aspects of energy
efficiency are relevant for standardization, and:
– use a systematic approach (see lEC Guide 119);
– adopt a systems approach.
The objective of an energy efficiency management system is to improve continuously the energy
performance of an energy using system such as a production facility or an office building. As
shown below in Figure 1 (see dark blue boxes), it is based on the particular organization's
energy policy, supporting energy objectives and it is implemented by processes (planning,
operations, assessment, etc.) to achieve those objectives.

Figure 1 – Overview of energy efficiency management
Many types of equipment, including switchgear and controlgear and their assemblies, depicted
in the light blue boxes in Figure 1, make an important contribution to the overall energy
efficiency of a system.
This document aims to give guidance to product standards writers and other interested parties
on the way energy efficiency should be considered for switchgear and controlgear and their
assemblies.
– 6 – IEC TR 63196:2020 © IEC 2020
By following this document, experts in standards will be encouraged to:
– consider energy efficiency aspects in their product standards and any associated
publications;
– use a structured method;
– use a systems approach;
– support the dissemination of energy efficient technologies;
– accelerate the uptake of the next generation of energy efficient technologies;
– create the prerequisites for energy efficiency through enabling technologies.

SWITCHGEAR AND CONTROLGEAR
AND THEIR ASSEMBLIES F
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