Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz and 1,6 MHz to 30 MHz - Part 4-7: Portable low voltage decoupling filters - Safety requirements

This European product safety standard applies to the filter part of portable devices for household and similar uses (hereafter referred to as portable decoupling filters) consisting of the filter part, a plug or an appliance inlet or a provision for connection by terminals or with a non-rewirable cord and one (multiple) socket-outlet or an appliance outlet. They are intended for single-phase circuits for nominal currents not exceeding 16 A and for nominal voltages not exceeding 250 V a.c. to neutral operating in the frequency range 3 kHz to 148,5 kHz and from 1,6 MHz to 30 MHz. The filtering functions are described in EN 50065-4-1. This standard does not cover phase couplers. Portable decoupling filters shall not be used as part of the fixed installation, where EN 50065-4-2 applies. Plugs and socket-outlets connected to the filter part and plugs and socket-outlets integrated with the filter part shall comply with the relevant national standard(s). Appliance inlets and appliance outlets connected to the filter part shall comply with the relevant parts of the EN 60320 series. Appliance inlets and appliance outlets integrated with the filter parts are not covered by this standard. This standard can be used for portable mains communication devices when no other product standard exists. This standard can be used for other portable mains filters other than those described in EN 50065-4-1 when no other product standard exists. Filters including batteries are not covered by this standard.

Signalübertragung auf elektrischen Niederspannungsnetzen im Frequenzbereich 3 kHz bis 148,5 kHz und 1,6 MHz bis 30 MHz - Teil 4-7: Bewegliche Niederspannungs-Entkopplungsfilter - Sicherheitsanforderungen

Transmission de signaux sur les réseaux électriques basse tension dans la bande de fréquences de 3 kHz à 148,5 kHz et de 1,6 MHz à 30 MHz - Partie 4-7: Filtres portables basse tension de découplage - Exigences de sécurité

Signalizacija po nizkonapetostnih električnih napeljavah v frekvenčnem območju od 3 kHz do 148,5 kHz in 1,6 MHz do 30 MHz - 4-7. del: Prenosni nizkonapetostni ločilni filtri - Varnostne zahteve (vsebuje popravek AC:2006)

General Information

Status
Published
Publication Date
28-Jul-2005
Current Stage
6060 - Document made available
Due Date
29-Jul-2005
Completion Date
29-Jul-2005

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SLOVENSKI STANDARD
SIST EN 50065-4-7:2006
01-januar-2006
6LJQDOL]DFLMDSRQL]NRQDSHWRVWQLKHOHNWULþQLKQDSHOMDYDKYIUHNYHQþQHPREPRþMX
RGN+]GRN+]LQ0+]GR0+]GHO3UHQRVQLQL]NRQDSHWRVWQL
ORþLOQLILOWUL9DUQRVWQH]DKWHYH YVHEXMHSRSUDYHN$&

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5

kHz and 1,6 MHz to 30 MHz -- Part 4-7: Portable low voltage decoupling filters - Safety

requirements

Signalübertragung auf elektrischen Niederspannungsnetzen im Frequenzbereich 3 kHz

bis 148,5 kHz und 1,6 MHz bis 30 MHz -- Teil 4-7: Bewegliche Niederspannungs-
Entkopplungsfilter - Sicherheitsanforderungen

Transmission de signaux sur les réseaux électriques basse tension dans la bande de

fréquences de 3 kHz à 148,5 kHz et de 1,6 MHz à 30 MHz -- Partie 4-7: Filtres portables

basse tension de découplage - Exigences de sécurité
Ta slovenski standard je istoveten z: EN 50065-4-7:2005
ICS:
31.160 (OHNWULþQLILOWUL Electric filters
33.040.30 Komutacijski in signalizacijski Switching and signalling
sistem systems
SIST EN 50065-4-7:2006 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50065-4-7:2006
---------------------- Page: 2 ----------------------
SIST EN 50065-4-7:2006
EUROPEAN STANDARD EN 50065-4-7
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2005
ICS 31.160; 33.040.30; 97.120 Incorporates Corrigendum October 2006
English version
Signalling on low-voltage electrical installations in the frequency range
3 kHz to 148,5 kHz and 1,6 MHz to 30 MHz
Part 4-7: Portable low voltage decoupling filters –
Safety requirements
Transmission de signaux sur les réseaux Signalübertragung auf elektrischen
électriques basse tension dans la bande Niederspannungsnetzen im
de fréquences de 3 kHz à 148,5 kHz Frequenzbereich 3 kHz bis 148,5 kHz
et de 1,6 MHz à 30 MHz und 1,6 MHz bis 30 MHz

Partie 4-7: Filtres portables basse tension Teil 4-7: Bewegliche Niederspannungs-

de découplage – Entkopplungsfilter –
Exigences de sécurité Sicherheitsanforderungen

This European Standard was approved by CENELEC on 2004-12-01. CENELEC members are bound to

comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard 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 European Standard 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, Cyprus, Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,

Switzerland and 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

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50065-4-7:2005 E
---------------------- Page: 3 ----------------------
SIST EN 50065-4-7:2006
EN 50065-4-7:2005 – 2 –
Foreword

This European Standard was prepared by SC 205A, Mains communicating systems, of Technical

Committee CENELEC TC 205, Home and Building Electronic Systems (HBES).

The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC

as EN 50065-4-7 on 2004-12-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-12-01
This safety standard EN 50065-4-7 has no frequency dependent content.

It was originally conceived as a safety document within the EN 50065 set of standards, which have a

frequency of 3 kHz to 148,5 kHz.

When the scope of SC205A was extended to 30 MHz, SC 205A agreed that the scope of the published

safety standard, EN 50065-4-2, Low voltage decoupling filters - Safety requirements, should be amended

to include the band 1,6 MHz to 30 MHz in order to cover the additional set of standards for 1,6 MHz to

30 MHz. This required no technical changes to the body of the document.

In addition, it was agreed that Part 4-7, Portable low voltage decoupling filters - Safety requirements,

should also cover both frequency ranges. For this reason the title of this part of EN 50065 covers the

extended frequency ranges 3 kHz to 148,5 kHz and 1,6 MHz to 30 MHz.

When certifying or making declaration of conformity to the Low Voltage Directive 73/23/EEC in order to

CE mark the device it is important to state that the CE marking is only valid for the filter parts of the

product. The plug parts and socket-outlets parts are not covered by the Low Voltage Directive and shall

therefore comply with the relevant national standards.
Structure of EN 50065 series:
Reference Title

EN 50065 Signalling on low voltage electrical installations in the frequency range 3 kHz to 148,5 kHz

EN 50065-1 Part 1: General requirements, frequency bands and electromagnetic disturbances

EN 50065-2-1 Part 2-1: Immunity requirements for mains communications equipment and systems

operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in

residential, commercial and light industrial environments

EN 50065-2-2 Part 2-2: Immunity requirements for mains communications equipment and systems

operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in

industrial environments

EN 50065-2-3 Part 2-3: Immunity requirements for mains communications equipment and systems

operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity

suppliers and distributors
EN 50065-4-1 Part 4-1: Low voltage decoupling filters - Generic specification
EN 50065-4-2 Part 4-2: Low voltage decoupling filters - Safety requirements
EN 50065-4-3 Part 4-3: Low voltage decoupling filters - Incoming filter
EN 50065-4-4 Part 4-4: Low voltage decoupling filters - Impedance filter
EN 50065-4-5 Part 4-5: Low voltage decoupling filters - Segmentation filter
EN 50065-4-6 Part 4-6: Low voltage decoupling filters - Phase coupler
EN 50065-4-7 Part 4-7: Low voltage decoupling filters - Safety requirements
EN 50065-7 Part 7: Equipment impedance
The contents of the corrigendum of October 2006 have been included in this copy.
---------------------- Page: 4 ----------------------
SIST EN 50065-4-7:2006
– 3 – EN 50065-4-7:2005
Contents

1 Scope.................................................................................................................................................. 5

2 Normative references ......................................................................................................................... 5

3 Definitions ........................................................................................................................................... 6

4 General requirements ......................................................................................................................... 9

5 General notes on tests........................................................................................................................ 9

6 Rating.................................................................................................................................................. 9

7 Classification..................................................................................................................................... 10

8 Marking ............................................................................................................................................. 11

9 Dimensions ....................................................................................................................................... 13

10 Protection against electric shock ...................................................................................................... 13

11 Provision for protective earthing ....................................................................................................... 14

12 Terminals .......................................................................................................................................... 15

13 Construction...................................................................................................................................... 15

14 Resistance to ageing, protection provided by enclosures, and resistance to humidity.................... 18

15 Insulation resistance and dielectric strength..................................................................................... 20

16 Temperature rise .............................................................................................................................. 21

17 Breaking capacity ............................................................................................................................. 23

18 Normal operation .............................................................................................................................. 23

19 Force necessary to withdraw the plug .............................................................................................. 23

20 Flexible cables and their connections............................................................................................... 23

21 Mechanical strength.......................................................................................................................... 26

22 Resistance to heat ............................................................................................................................ 27

23 Screws, current-carrying parts and connections .............................................................................. 28

24 Creepage distances and clearances ................................................................................................ 30

25 Resistance to abnormal heat, to fire and to tracking ........................................................................ 34

26 Resistance to rusting ........................................................................................................................ 36

27 Components...................................................................................................................................... 36

28 Abnormal conditions ......................................................................................................................... 38

29 Protection against short-circuit ......................................................................................................... 39

30 Resistance to transients ................................................................................................................... 40

Annex A (normative) Pollution degrees...................................................................................................45

Annex B (normative) Proof tracking test..................................................................................................46

Annex C (normative) Types of coatings for rigid printed board assemblies........................................... 47

Annex D (normative) Special national conditions....................................................................................48

---------------------- Page: 5 ----------------------
SIST EN 50065-4-7:2006
EN 50065-4-7:2005 – 4 –

Table 1 – Symbols for identification of the terminals................................................................................12

Table 2 – Connectable cross-sections of copper conductors ..................................................................15

Table 3 – Minimum insulation resistances ...............................................................................................20

Table 4 – Dielectric strength.....................................................................................................................21

Table 5 – Test current ..............................................................................................................................21

Table 6 – Permissible temperature rise maximum temperatures.............................................................22

Table 7 – Make-up of cables suitable for the retention test of rewirable filter devices ............................23

Table 8 – Minimum cross-sectional area for cables for non-rewirable filter devices...............................24

Table 9 – Minimum clearances for basic insulation .................................................................................31

Table 10 – Minimum creepage distances for basic insulation..................................................................32

Table 11 – Minimum creepage distances for functional insulation ..........................................................33

Table 12 – Test levels and conditions......................................................................................................34

Figure 1 – Examples of types of connection classified according to 7.3..................................................41

Figure 2 – Apparatus for testing the cord retention (20.2) .......................................................................42

Figure 3 – Apparatus for flexing test (20.3.2) ......................................................................................... 43

Figure 4 – Apparatus for impact test at low temperature (21.2.3)........................................................... 44

---------------------- Page: 6 ----------------------
SIST EN 50065-4-7:2006
– 5 – EN 50065-4-7:2005
1 Scope

This European product safety standard applies to the filter part of portable devices for household and

similar uses (hereafter referred to as portable decoupling filters) consisting of the filter part, a plug or an

appliance inlet or a provision for connection by terminals or with a non-rewirable cord and one (multiple)

socket-outlet or an appliance outlet. They are intended for single-phase circuits for nominal currents not

exceeding 16 A and for nominal voltages not exceeding 250 V a.c. to neutral operating in the frequency

range 3 kHz to 148,5 kHz and from 1,6 MHz to 30 MHz.
The filtering functions are described in EN 50065-4-1.
This standard does not cover phase couplers.

Portable decoupling filters shall not be used as part of the fixed installation, where EN 50065-4-2 applies.

Plugs and socket-outlets connected to the filter part and plugs and socket-outlets integrated with the filter

part shall comply with the relevant national standard(s).

Appliance inlets and appliance outlets connected to the filter part shall comply with the relevant parts of

the EN 60320 series. Appliance inlets and appliance outlets integrated with the filter parts are not covered

by this standard.

This standard can be used for portable mains communication devices when no other product standard

exists.

This standard can be used for other portable mains filters other than those described in EN 50065-4-1

when no other product standard exists.
Filters including batteries are not covered by this standard.
2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

EN 60065 2002 Audio, video and similar electronic apparatus – Safety requirements

(IEC 60065:2001, mod)

EN 60068-2-32 Environmental testing – Part 2: Tests – Test Ed: Free fall (IEC 60068-2-32)

EN 60068-2-75 Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
(IEC 60068-2-75)

EN 60112 2003 Method for the determination of the proof and the comparative tracking indices

of solid insulating materials (IEC 60112:2003)
EN 60127 Series Miniature fuses (IEC 60127)

EN 60320 Series Appliance couplers for household and similar general purposes (IEC 60320)

EN 60529 Degrees of protection provided by enclosures (IP code) (IEC 60529)

EN 60664-1 2003 Insulation coordination for equipment within low-voltage systems –

Part 1: Principles, requirements and tests
(IEC 60664-1:1992 + A1:2000 + A2:2002)
EN 60664-3 Insulation coordination for equipment within low-voltage systems –
Part 3: Use of coating, potting or moulding for protection against pollution
(IEC 60664-3)
---------------------- Page: 7 ----------------------
SIST EN 50065-4-7:2006
EN 50065-4-7:2005 – 6 –

EN 60695-2-11 Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –

Glow-wire flammability test method for end-products (IEC 60695-2-11)

EN 60695-10-2 Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test

(IEC 60695-10-2)

EN 60721-3-3 Classification of environmental conditions – Part 3: Classification of groups of

environmental parameters and their severity’s – Section 3: Stationary use at
weather protected locations (IEC 60721-3-3)

EN 60893-1 Insulating materials - Industrial rigid laminated sheets based on thermosetting

resins for electrical purposes - Part 1: Definitions, designations and general
requirements (IEC 60893-1)

EN 60999-1 2000 Connecting devices - Electrical copper conductors - Safety requirements for

screw-type and screwless-type clamping units – Part 1: General requirements
and particular requirements for clamping units for conductors from 0,2 mm' up
to 35 mm (included) (IEC 60999-1:1999)

EN 61032 Protection of persons and equipment by enclosures – Probes for verification

(IEC 61032)

EN 61140 2002 Protection against electric shock – Common aspects for installation and

equipment (IEC 61140:2001)

EN 61180-1 High-voltage test techniques for low-voltage equipment – Part 1: Definitions,

test and procedure requirements (IEC 61180-1)

EN 61180-2 High-voltage test techniques for low-voltage equipment – Part 2:Test equipment

(IEC 61180-2)

EN 132400 Sectional Specification: Fixed capacitors for electromagnetic interference

suppression and connection to the supply mains (Assessment level D)
HD 21 Series Cables of rated voltages up to and including 450/750 V and having
thermoplastic insulation (IEC 60227, mod)

HD 22 Series Cables of rated voltages up to and including 450/750 V and having cross-linked

insulation (IEC 60245, mod)
IEC 60085 Thermal evaluation and classification of electrical insulation
IEC 60417, database Graphical symbols for use on equipment

IEC 60884-1 2002 Plugs and socket-outlets for household and similar purposes - Part 1: General

requirements

IEC 60884-2-5 1995 Plugs and socket-outlets for household and similar purposes - Part 2: Particular

requirements for adaptors
3 Definitions
For the purpose of this CENELEC standard, the following definitions apply.

Where the terms "voltage" and "current" are used, they imply r.m.s. values, unless otherwise specified.

Throughout this standard, the word "earthing" is used for "protective earthing".

The term "accessory" is used as a general term covering plugs and portable socket-outlets. The use of

the accessories is shown in Figure 1a of IEC 60884-1.
---------------------- Page: 8 ----------------------
SIST EN 50065-4-7:2006
– 7 – EN 50065-4-7:2005
3.1 Definitions (from IEC 60884-1) relating to plugs and socket-outlets
3.1.1
plug

accessory having pins designed to engage with the contacts of a socket-outlet, also incorporating means

for the electrical connection and mechanical retention of flexible cables or cords

3.1.2
socket-outlet

accessory having socket-contacts designed to engage with the pins of a plug and having terminals for the

connection of cable
3.1.3
portable socket-outlet

socket-outlet intended to be connected to, or integral with, flexible cables or cords, and which can easily

be moved from one place to another while connected to the supply
3.1.4
multiple socket-outlet
combination of two or more socket-outlets
3.1.5
rewirable plug
accessory so constructed that the flexible cable or cord can be replaced
3.1.6
non-rewirable plug or a non-rewirable portable socket-outlet

accessory so constructed that it forms a complete unit with the flexible cable or cord after connection and

assembly by the manufacturer of the accessory (see also 14.1 of IEC 60884-1)
3.1.7
moulded-on accessory

non-rewirable accessory, the manufacture of which is completed by insulating material moulded around

pre-assembled component parts and the terminations of the flexible cable or cord
3.1.8
cord extension set

assembly consisting of one flexible cable or cord fitted with one plug and one portable socket-outlet

3.1.9
terminal

insulated or non-insulated connecting device intended for reusable electrical connection of the external

conductors
3.1.10
termination

insulated or non-insulated connecting device intended for non -reusable electrical connection of the

external conductors
3.1.11
clamping unit of a terminal

part or parts of a terminal necessary for the mechanical clamping and the electrical connection of the

conductor(s)
3.1.12
adaptor

accessory constructed as an integral unit incorporating both plug pins and socket contacts

(IEC 60884-2-5)
---------------------- Page: 9 ----------------------
SIST EN 50065-4-7:2006
EN 50065-4-7:2005 – 8 –
3.2 Definitions related to decoupling filters
3.2.1
decoupling filter

a device which attenuates incoming or outgoing signals within a specified frequency range

3.2.2
intermediate adaptor
adaptor which has a decoupling filter incorporated
3.2.3
fault conditions
abnormal conditions which may occur during normal operation
3.2.4
screw-type terminal

a clamping unit for the connection and subsequent disconnection of one conductor or the interconnection

and subsequent disconnection of two ore more conductors, the connection being made, directly or

indirectly, by means of screws or nuts of any kind
3.2.5
nominal voltage
the voltage assigned to the filter device by the manufacturer
3.2.6
nominal current

the nominal maximum operating current assigned to the filter device by the manufacturer

3.3 Definitions from (EN 61140 and EN 60664-1) related to insulation
3.3.1
basic insulation

insulation applied to live parts to provide basic protection against electric shock

3.3.2
supplementary insulation

independent insulation applied in addition to the basic insulation in order to provide protection against

electric shock in the event of a failure of the basic insulation (fault protection)

3.3.3
double insulation
insulation comprising both basic insulation and supplementary insulation
3.3.4
reinforced insulation

single insulation system applied to live parts which provides a degree of protection against electric shock

equivalent to double insulation

NOTE The term "insulation system" does not imply that the insulation should be one homogeneous piece. It may comprise several

layers which cannot be tested separately as supplementary or basic insulation.
3.3.5
functional insulation

insulation between live parts which is necessary only for the proper functioning of the filter part

3.3.6
solid insulation
insulation material interposed between two conductive parts

NOTE In the case of a printed board assembly with a coating, solid insulation consists of the printed board itself as well as the

coating. In other cases, solid insulation consists of the encapsulating material.

---------------------- Page: 10 ----------------------
SIST EN 50065-4-7:2006
– 9 – EN 50065-4-7:2005
4 General requirements

The portable filter devices including its accessories shall be so designed and constructed that, in normal

use, their performance is reliable and without danger to the user or the surroundings.

In general, compliance is checked by carrying out all the tests specified, where applicable.

5 General notes on tests
Tests according to this standard are type tests.

5.1 The samples are tested as delivered and under normal conditions of use, having regard to the

classification of the filter device and to the manufacturer's installation instructions.

5.2 Unless otherwise specified, the tests are carried out in the order of the clauses at an ambient

temperature of 20 °C ± 5 °C.
5.3 The required number of samples with filter portion shall be 9.

NOTE The number of samples with plug or socket-outlet parts shall be in accordance with the national standard(s). The number of

samples with appliance coupler parts shall be in accordance with the EN 60320 standard(s).

Three samples are subjected to all the relevant tests, except the test of Clauses 27 and 28 where three

other samples are used, and the tests of Clauses 29 and 30 where another three samples are used.

5.4 Filter device is deemed not to comply with this standard if any sample does not pass the tests of

25.1, 25.2, Clauses 29 and 30, and if there are more failures than that of one sample in any of the other

tests.

If no sample has failed during the tests of 25.1, 25.2, Clauses 29 and 30, but one sample has failed in

another way during any of the other tests, the test which caused the failure and those preceding which

may have influenced the result of that test, are repeated on another set of samples, as specified in 5.4, all

of which shall then comply with the repeated tests.

NOTE 1 In general, it will be necessary only to repeat the test that caused the failure, unless the sample fails in the mechanical

strength test of Clause 21, in which case the ageing test of Clause 14 is repeated.

NOTE 2 The applicant may submit, together with the number of samples specified in 5.3, the additional set of samples, which may

be required, should one sample fail. The testing laboratory will then, without further request, test the additional samples and will

reject only if a further failure occurs. If the additional set of samples is not submitted at the same time, a failure of one sample will

entail a rejection.
6 Rating
6.1 Rated value of nominal voltages are 230 V.
6.2 Rated values of nominal currents are 10 A, 13 A and 16 A.

For a filter accessory, the rated current of the socket-outlet part shall not be higher than the rated value of

the nominal current for the filter part and the plug part.
6.3 Rated cross-sectional areas of conductors are 0,75 mm², 1,0 mm² and 1,5 mm².

Compliance with the requirements of 6.1 to 6.3 is checked by inspection of the marking and the

instruction sheet.
---------------------- Page: 11 ----------------------
SIST EN 50065-4-7:2006
EN 50065-4-7:2005 – 10 –
7 Classification of filter devices
7.1 According to protection against direct contact and external influences
The degrees of protection are based on EN 60529.
7.2 According to the degree of protection against ingress of water
The degrees of protection are based on EN 60529.
7.3 According to the type of connection
See Figure 1.
7.3.1 Intermediate adaptor
Filter incorporating one plug and one (multiple) socket-outlet.
7.3.2 Cord extension sets

7.3.2.1 The filter portion of which incorporates the plug at one end and one non-rewirable cord with one

portable (single or multiple) socket-outlet at the other end.

7.3.2.2 The filter portion with one non-rewirable cable in both ends with one plug and one socket-outlet

7.3.2.3 The filter portion of which incorporates one portable (single or multiple) socket-outlet at one end

and a non-rewirable cord with one plug at the other end.
7.3.3 Filter plugs
7.3.3.1 Filter incorporating one plug and a set of terminals

7.3.3.2 The filter portion plug for appliances: Filter incorporating the plug and equipped with one non-

rewirable cord with or without one appliance coupler
7.3.4 In-line filters

7.3.4.1 Filter equipped, on the supply side, with one non-rewirable cord with one plug and, on the

output side, with a set of terminals

7.3.4.2 Filter for appliances equipped, on the supply side, with one non-rewirable cord and one non-

rewirable plug, and, on the output side, with one non-rewirable cord

7.3.4.3 Filter for appliances equipped, on the supply side, with one non-rewirable cord and one non-

rewirable plug, and, on the output side, with one non-rewirable cord with a appliance connector

7.3.4.4 The filter portion of which is equipped on both sides with terminals

7.3.4.5 The filter portion of which is equipped on both sides with one non-rewirable cord and with or

without on one side with an appliance inlet and on the other side with an appliance outlet

7.4 According to environmental temperature conditions
The classifications are based on EN 60721-3-3.
− class 3K4 + 5 °C to + 40 °C for indoor locations
− class 3K5 - 5 °C to + 45 °C for unprotected indoor locations
− class 3K6 - 25 °C to + 55 °C for outdoor locations
...

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