Electrical relays Specification for contact loads of preferred values used in endurance tests for electrical relay contacts

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

29-04-1983

Publisher

British Standards Institution

National foreword
Committees responsible
Section one - General and definitions
1 General
1.1 Scope and object
1.2 General requirements
2 Terms and definitions
2.1 Application category of contacts
3 Standard values
3.1 Application categories of contacts
Section two - Standard values for categories 0 and 1
4 Contact loads
4.1 D.C. and a.c. (50 Hz or 60 Hz) resistive loads
4.2 D.C. inductive loads
4.3 Capacitive load
4.4 D.C. relay load
4.5 D.C. open-ended cable loads (floating cable)
4.6 D.C. cable loads combined with resistive load
4.7 D.C. cable load combined with relay load
Section three - Standard values for categories 2 and 3
5 Contact loads
5.1 D.C. and a.c. (50 Hz, 60 Hz or 400 Hz) resistive
loads
5.2 Inductive loads
5.3 Capacitive loads
5.4 Relay load

Specifies characteristics of standard types of contact load to be used in endurance tests of electrical relay contacts over ranges of voltages and currents corresponding to defined application categories. Also lists preferred values for contact loads.

This standard applies to contact assemblies of all types of relays covered by the Publication 255 series: Electrical Relays.

This standard specifies preferred characteristics of the contact loads to be used in endurance tests of electrical relay contacts over the ranges of voltages and currents defined by application categories. Preferred values are given for various types of load including relay and cables.

As a result of further consideration the title and values of various tables differ slightly from those published in IEC Publication 225-0-20: Contact Performance of Electrical Relays.

The detail specifications²⁾ shall refer to these preferred values of contact loads but for a particular application, additional characteristics may be defined (e.g. inrush current in a contact load circuit, lamp load or motor load).

Committee	PEL/95
DevelopmentNote	Also numbered as IEC 60255-14 Supersedes 78/27037 DC and 80/22638 DC (09/2005)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current

BS EN 60255-23:1997	Electrical relays Contact performance
BS EN 116000-3:1996	Harmonized system of quality assessment for electronic components. Generic specification: electromechanical all-or-nothing relays Test and measurement procedures
BS 5992-5:1983	Electrical relays Specification for test equipment used in endurance tests for electrical relay contacts
CECC 16000 PT1 : 90 AMD 2 92	HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: ELECTROMECHANICAL ALL-OR-NOTHING RELAYS - PART 1: GENERAL
BS CECC 16000-1:1992	Harmonized system of quality assessment for electronic components. Generic specification: electromechanical all-or-nothing relays General

IEC 60096-2:1961	Radio-frequency cables - Part 2: Relevant cable specifications
BS 4727-1:GRP03(1971) : 1971	GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING AND COLOUR TERMS - TERMS COMMON TO POWER TELECOMMUNICATIONS & ELECTRONICS - RELAY TERMINOLOGY
BS 5992-5:1983	Electrical relays Specification for test equipment used in endurance tests for electrical relay contacts
BS 5992-1:1980	Electrical relays Specification for contact performance of electrical relays

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BS 5992-4:1983

Electrical relays Specification for contact loads of preferred values used in endurance tests for electrical relay contacts

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