EN 60947-5-4:1997

EN 60947-5-4:1997 is a standard published by CLC. Its full title is "Low-voltage switchgear and controlgear - Part 5: Control circuit devices and switching elements - Section 4: Methods of assessing the performance of low energy contacts - Special tests". This standard covers: Applies to separable contacts used in the utilisation area considered such as switching element for control circuits. Two rated voltages are taken into consideration: above (and including) 10 V (typically 24 V) where contacts are used for switching loads with possible electrical erosion, such as programmable controller inputs, and below 10 V (typically 5 V) with neglible erosion, such as electronic circuits. It is a proposed method of assessing the performances of low energy contacts giving: useful definitions; general principles of test methods which are to monitor and record the behaviour of contacts at each operation; functional bases for the definition of a general testing equipment; preferred test values; particular conditions for testing contacts intended for specific applications (such as switching of PC inputs); information to be given in the test reports; interpretation and presentation of the test results.

Applies to separable contacts used in the utilisation area considered such as switching element for control circuits. Two rated voltages are taken into consideration: above (and including) 10 V (typically 24 V) where contacts are used for switching loads with possible electrical erosion, such as programmable controller inputs, and below 10 V (typically 5 V) with neglible erosion, such as electronic circuits. It is a proposed method of assessing the performances of low energy contacts giving: useful definitions; general principles of test methods which are to monitor and record the behaviour of contacts at each operation; functional bases for the definition of a general testing equipment; preferred test values; particular conditions for testing contacts intended for specific applications (such as switching of PC inputs); information to be given in the test reports; interpretation and presentation of the test results.

EN 60947-5-4:1997 is classified under the following ICS (International Classification for Standards) categories: 29.130.20 - Low voltage switchgear and controlgear. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 60947-5-4:1997 has the following relationships with other standards: It is inter standard links to EN 60947-5-4:2003, EN ISO 8402:1995, EN 60068-1:1994, EN 60068-2-1:1993, EN 61131-2:1994, EN 60947-1:1997, EN 60947-5-1:1991, EN 13814:2004, EN 62019:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 60947-5-4:1997 is associated with the following European legislation: EU Directives/Regulations: 2006/95/EC, 73/23/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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