IEC 60947-7-1 : 3.0

Table of Contents

FOREWORD<br>1 General<br>&nbsp;&nbsp;1.1 Scope<br>&nbsp;&nbsp;1.2 Normative references<br>2 Definitions<br>3 Classification<br>4 Characteristics<br>&nbsp;&nbsp;4.1 Summary of characteristics<br>&nbsp;&nbsp;4.2 Type of terminal block<br>&nbsp;&nbsp;4.3 Rated and limiting values<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3.1 Rated voltages<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3.2 Short-time withstand current<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3.3 Standard cross-sections<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3.4 Rated cross-section<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.3.5 Rated connecting capacity<br>5 Product information<br>&nbsp;&nbsp;5.1 Marking<br>&nbsp;&nbsp;5.2 Additional information<br>6 Normal service, mounting and transport conditions<br>7 Constructional and performance requirements<br>&nbsp;&nbsp;7.1 Constructional requirements<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1.1 Clamping units<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1.2 Mounting<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1.3 Clearances and creepage distances<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1.4 Terminal identification and marking<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1.5 Resistance to abnormal heat and fire<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1.6 Rated cross-section and rated connecting capacity<br>&nbsp;&nbsp;7.2 Performance requirements<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.1 Temperature-rise<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.2 Dielectric properties<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.3 Short-time withstand current<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.4 Voltage drop<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2.5 Electrical performance after ageing (for <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;screwless-type terminal blocks only)<br>&nbsp;&nbsp;7.3 Electromagnetic compatibility (EMC)<br>8 Tests<br>&nbsp;&nbsp;8.1 Kinds of test<br>&nbsp;&nbsp;8.2 General<br>&nbsp;&nbsp;8.3 Verification of mechanical characteristics<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.3.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.3.2 Attachment of the terminal block on its support<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.3.3 Mechanical properties of clamping units<br>&nbsp;&nbsp;8.4 Verification of electrical characteristics<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4.2 Verification of clearances and creepage distances<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4.3 Dielectric tests<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4.4 Verification of the voltage drop<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4.5 Temperature-rise test<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4.6 Short-time withstand current test<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4.7 Ageing test (for screwless-type terminal blocks <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;only)<br>&nbsp;&nbsp;8.5 Verification of thermal characteristics<br>&nbsp;&nbsp;8.6 Verification of EMC characteristics<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.6.1 Immunity<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.6.2 Emission<br>Annex B (informative) Items subject to agreement between<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;manufacturer and user<br>Annex D (normative) Additional requirements for test<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;disconnect terminal blocks<br>Bibliography

Abstract

Describes requirements for terminal blocks with screw-type or screw-less-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 17