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AS 3947.4.1-1995

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Low-voltage switchgear and controlgear Contactors and motor-starters - Electromechanical contactors and motor-starters

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

29-05-2024

Superseded by

AS/NZS 3947.4.1:2001

Published date

01-01-1995

€126.44
Excluding VAT

Applies to a.c. and d.c. contactors and a.c. motor-starters whose main contacts are intended to be connected to circuits, the rated voltage of which does not exceed 1000 volt a.c. or 1500 volt d.c. Specifies requirements for contactors associated with overload or short-circuit protective devices, starters associated with short-circuit and integrated overload protective devices and contactors or starters combined with their own short-circuit protective devices. This Standard is technically equivalent to and reproduced from IEC 947-4-1:1990.

Committee
EL-006
DocumentType
Standard
ISBN
0 7262 9289 3
Pages
93
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes

This standard applies to the types of equipment listed in Subclauses 1.1.1 and 1.1.2 hereinafter whose main contacts are intended to be connected to circuits the rated voltage of which does not exceed 1 000 V a.c. or1 500 V d.c.Starters and/or contactors dealt with in this standard are not normally designed to interrupt short-circuit currents. Therefore, suitable short-circuit protection (see Sub-clause 8.3.4) shall form part of the installation but not necessarily of the contactor or the starter.In this context, this standard gives requirements for:- contactors associated with overload and/or short-circuit protective devices;- starters associated with separate short-circuit protective devices and/or with separate short-circuit and integrated overload protective devices;- contactors or starters combined, under specified conditions, with their own short-circuit protective devices. Such combinations, e.g. combination starters (see Sub-clause 2.2.7) or protected starters (see Sub-clause 2.2.8) are rated as units.Circuit-breakers and fuse-combination units used as short-circuit protective devices in combination starters and in protected starters shall comply with the requirements of IEC Publications 947-2 and 947-3, as the case may be.

Standards Relationship
IEC 60947-4-1:1990 Identical

AS 3947.4.1 first published in part as AS C165-1961.
AS C63 first published 1965.
AS C364 first published 1967.
AS C381 first published 1967.
AS C63-1965 revised and redesignated AS 1029-1971.
AS C165-1961 revised and redesignated AS 1023.2-1972.
AS C364-1967 revised and redesignated AS 1202.1-1972.
Second edition AS 1029-1974.
AS C381-1967 revised and redesignated AS 1202.2-1976, AS 1202.3-1976 and AS 1202.4-1976.
Second edition AS 1202.1-1981.
AS 1029-1974 revised and redesignated in part as AS 1029.1-1982.
Second edition AS 1029.1-1985.
Second edition AS 1023.2-1989.
AS 1023.2-1989, AS 1029.1-1985, AS 1201.1-1981, AS 1202.2-1976, AS 1202.3-1976 and AS 1202.4-1976 revised, amalgamated and redesignated AS 3947.4.1-1995.

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AS 1431.1-1989 Low voltage switchgear and controlgear - Control circuit devices and switching elements - General requirements
AS 2481-1981 All-or-nothing electrical relays (instantaneous and timing relays)
AS 3947.1-1993 Low-voltage switchgear and controlgear General rules
AS 3947.3-1994 Low-voltage switchgear and controlgear Switches, disconnectors, switch-disconnectors and fuse-combination units
AS 2005.20-1990 Low voltage fuses - Fuses with enclosed fuse-links Supplementary requirements for fuses for use by authorized persons (Fuses mainly for industrial application) - Common requirements
AS 1023.1-1985 Low voltage switchgear and controlgear - Protection of electric motors Built-in thermal detectors and associated control units
AS 2005.21.1-1990 Low voltage fuses - Fuses with enclosed fuse-links Supplementary requirements for fuses for use by authorized persons (Fuses mainly for industrial application) - Standardized fuse systems - Fuses with fuse-links with blade contacts
AS 2005.10-1988 Low voltage fuses - Fuses with enclosed fuse-links General requirements
AS 1852.441-1985 International electrotechnical vocabulary - Switchgear, controlgear and fuses
AS 3858-1990 Low voltage switchgear and controlgear - Circuit-breakers

AS 3947.5.1-1995 Low-voltage switchgear and controlgear Control circuit devices and switching elements - Electromechanical control circuit devices
AS/NZS 61459:2000 Low-voltage fuses - Coordination between fuses and contactors/motor-starters - Application guide
AS 3947.2-1997 Low-voltage switchgear and controlgear Circuit-breakers
HB 301-2001 Electrical installations - Designing to the Wiring rules

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