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  • BSI
    BS 5424-2:1987 Low-voltage controlgear - Specification for semiconductor contactors (solid state contactors)
    Edition: 1987
    $442.60
    / user per year

Description of BS 5424-2:1987 1987

This standard applies to semiconductor contactors intended for performing electrical operations by changing the state of electric circuits between on state and off state.

This standard is additional to IEC Publication 158-1: Low-voltage Controlgear, Part 1: Contactors (including Supplements A and B) which is applicable, provided it is not amended by this standard.

It applies only to semiconductor contactors, the main circuit of which is intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.

NOTE 1 Semiconductor contactors dealt with in this standard are not intended to provide short-circuit protection of the main circuit, but may contain short-circuit protective devices for semiconductor parts.

NOTE 2 Semiconductor motor-starters will be dealt with in a later publication.

This standard applies also to hybrid-semiconductor contactors, which are also covered by the scope of IEC Publication 158-1 as concerns their electromagnetic part.



Characteristics, conditions of operation and construction and testing requirements for semiconductor contactors for performing electrical operations by changing the state of electric circuits between on and off states.

Standard NumberBS 5424-2:1987
TitleLow-voltage controlgear - Specification for semiconductor contactors (solid state contactors)
StatusConfirmed
Publication Date1987-11-30
Related National Standard OfIEC 60158-2
DescriptorsLow-voltage equipment, Verification, Electrical equipment, Marking, Grades (quality), Electric load, Contactors, Ratings, Test equipment, Semiconductor devices, Type testing, Switchgear, Switches, Electric control equipment, Electronic equipment and components, Testing conditions, Temperature-rise limit, Graphic representation, Circuits, Electrical testing
ICS29.130.20 Low voltage switchgear and controlgear
CommitteePEL/121/1
ISBN0 580 16204 4
PublisherBSI
Pages34

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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