BS IEC 62873-3-1:2020

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Residual current operated circuit-breakers for household and similar use – Particular requirements for devices with screwless-type terminals for external copper conductors

Published By	Publication Date	Number of Pages
BSI	2020	18

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Categories: 29.120.50 - Fuses and other overcurrent protection devices, BSI

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Description

This document applies to devices equipped with screwless-type terminals for current not exceeding 40 A, primarily suitable for connecting unprepared copper conductors of cross-section up to 10 mm².

This document cannot be used alone but is intended to be applied together with the applicable product standard in which it is referred to.

NOTE 1 In CZ, DK, NL, PO and CH, the upper limit of current for use of screwless-type terminals is 16 A.

NOTE 2 In JP, the upper limit of current for use of screwless-type terminals is 30 A.

NOTE 3 The manufacturer can declare in its documentation specific conditions permitting the use of prepared conductors.

In this document, screwless-type terminals are referred to as terminals, and copper conductors are referred to as conductors.

PDF Catalog

PDF Pages	PDF Title
2	undefined
4	CONTENTS
5	FOREWORD
7	INTRODUCTION
8	1 Scope 2 Normative references 3 Terms and definitions
9	4 Classification 5 Characteristics of devices 6 Marking and other product information
10	7 Standard conditions for operation in service and for installation 8 Requirements for construction and operation 8.1 General 8.2 Connection and disconnection of conductors 8.3 Dimensions of conductors
11	8.4 Connectable cross-sectional areas 8.5 Insertion and withdrawal of conductors 8.6 Design and construction of terminals Table 1 – Conductors and their theoretical diameters Table 2 – Cross-sections of copper conductors connectable to screwless-type terminals
12	8.7 Resistance to ageing 9 Tests 9.1 General 9.2 Test of reliability of screwless-type terminals 9.2.1 Reliability of screwless system
13	9.2.2 Test of reliability of connection 9.3 Tests of reliability of terminals for external conductors 9.3.1 Mechanical strength 9.3.2 Cycling test Table 3 – Pull forces
14	Figure 1 – Connecting samples Table 4 – Test copper conductors corresponding to the rated currents
16	Figure 2 – Examples of screwless-type terminals
17	Bibliography

Additional information

Status	Definitive
Pages	18
Publication Date	2020-11-26
ISBN	978 0 539 03119 5
Standard Number	BS IEC 62873-3-1:2020
Title	Residual current operated circuit-breakers for household and similar use – Particular requirements for devices with screwless-type terminals for external copper conductors
Identical National Standard Of	IEC 62873-3-1 Amd.1 Ed.1.0
Replaces	BS IEC 62873-3-1:2016
Descriptors	Thermal testing, Breaking capacity, Electric terminals, Fire tests, Mechanical testing, Leakage paths, Gases, Approval testing, Test equipment, Electrical safety, Electrical insulation, Testing conditions, Power factor, Dielectric-strength tests, Endurance testing, Switchgear, Domestic safety, Rated current, Classification systems, Temperature-rise limit, Electrical components, Certification (approval), Earth-leakage circuit-breakers, Circuit-breakers, Definitions, Clearance distances, Electric conductors, Impact testing, Electrical testing, Electrical protection equipment, Environment (working), Type testing, Short-circuit current tests, Performance, Screws (bolts), Verification, Electrical equipment, Domestic electrical installations, Performance testing, Marking, Copper, Environmental testing
Publisher	BSI
Committee	PEL/23/1
ICS Codes	29.120.50 - Fuses and other overcurrent protection devices

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BS IEC 62873-3-1:2020

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