• AS 60470-2001

    Current The latest, up-to-date edition.

    High-voltage alternating current contactors and contactor-based motor starters

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English

    Published date:  12-10-2001

    Publisher:  Standards Australia

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    Abstract - (Show below) - (Hide below)

    Applies to a.c. contactors and/or contactor-based motor-starters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1000 volt but not exceeding 12000 V. In particular applies to three-pole contactors and starters for use in three-phase systems and single-pole contactors and starters for use in single-phase systems. Contactors and/or starters dealt with in This Standard are not normally designed to interrupt short-circuit currents. This Standard is also applicable to the operating devices of contactors and to their auxiliary equipment. This Standard is identical with and has been reproduced from IEC 60470:2000.

    Scope - (Show below) - (Hide below)

    This International Standard is applicable to a.c. contactors and/or contactor-based motor-starters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 000 V but not exceeding 12 000 V.It is applicable only to three-pole contactors and starters for use in three-phase systems, and single-pole contactors and starters for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user.Contactors and/or starters dealt with in this standard are not normally designed to interrupt short-circuit currents. Therefore, suitable short-circuit protection (see 3.4.110.12 and note 2 below) forms 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 (SCPD);– 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, for example combination starters (see 3.4.110.9), are rated as units.Contactors intended for closing and opening electric circuits and, if combined with suitable relays, for protecting these circuits against operating overloads which may occur therein, are covered in this standard.This standard is also applicable to the operating devices of contactors and to their auxiliary equipment.Motor-starters intended to start and accelerate motors to normal speed, to ensure continuous operation of motors, to switch off the supply from the motor and to provide means for the protection of motors and associated circuits against operating overloads are dealt with.Motor-starter types included are– direct-on-line starters;– reversing starters;– two-direction starters;– reduced kVA (voltage) starters;– auto-transformer starters;– rheostatic starters;– reactor starters.Starters, the operation of which depends on thermal electrical relays for motor protection complying with IEC 60255-8, or motor-incorporated thermal protective devices dealt with in IEC 60034-11, do not necessarily meet all the relevant requirements of this standard.Overload relays for starters, including those based on solid-state technology, are covered by this standard.This standard does not apply to– circuit-breaker-based motor-starters;– single-pole operation of multi-pole contactors or starters;– two-step auto-transformer starters designed for continuous operation in the starting position;– unbalanced rheostatic rotor starters, i.e. where the resistances do not have the same value in all phases;– equipment designed not only for starting, but also for adjustment of speed;– liquid starters and those of the ‘liquid-vapour’ type;– semiconductor contactors and starters making use of semiconductor contactors in the main circuit;– rheostatic stator starters;– contactors or starters designed for special applications.This standard does not deal with components contained in contactors and contactor-based motor-starters, for which individual specifications exist.NOTE 1 Thermal electrical relays are covered by IEC 60255-8.NOTE 2 High-voltage current-limiting fuses are covered by IEC 60282-1 and IEC 60644.NOTE 3 Metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV are covered by IEC 60298.NOTE 4 Disconnectors and earthing switches are covered by IEC 60129.NOTE 5 High-voltage switches above 1 kV and less than 52 kV are covered by IEC 60265-1.The object of this standard is to statea) the characteristics of contactors and starters and associated equipment;b) the conditions with which contactors or starters shall comply with reference to:1) their operation and behaviour,2) their dielectric properties,3) the degrees of protection provided by their enclosures, where applicable,4) their construction,5) for combinations, interactions between the various components, for example SCPD less co-ordination;c) the tests intended for confirming that these conditions have been met, and the methods to be adopted for these tests;d) the information to be given with the equipment or in the manufacturer's literature.

    General Product Information - (Show below) - (Hide below)

    Committee EL-007
    Document Type Standard
    Product Note Reconfirmed 18/05/2015.This standard as been reconfirmed in Australia in 2015 and remains current in New Zealand. Reconfirmation Notice 18/05/2015
    Publisher Standards Australia
    Status Current
    Supersedes

    History - (Show below) - (Hide below)

    First published as part of AS 1864-1976 and AS 2232.1-1979.AS 1864-1976 and AS 2232.1-1979 revised, amalgamated and redesignated as AS 60470-2001.Reconfirmed 2015. First published as part of AS 1864-1976 and AS 2232.1-1979. AS 1864-1976 and AS 2232.1-1979 revised, amalgamated and redesignated as AS 60470-2001.

    Standards Referenced By This Book - (Show below) - (Hide below)

    AS 2006-1986 High voltage a.c. switchgear and controlgear - Circuit breakers for rated voltages above 1000 V
    AS 1104-1978 Informative symbols for use on electrical and electronic equipment
    AS/NZS 2650:2000 Common specifications for high-voltage switchgear and controlgear standards
    AS 4372-1996 High-voltage alternating current circuit-breakers - Inductive load switching
    AS 2086-1995 A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 72.5 kV
    AS 1852.441-1985 International electrotechnical vocabulary - Switchgear, controlgear and fuses
    AS 1306-1985 High voltage a.c. switchgear and controlgear - Disconnectors (isolators) and earthing switches
    AS 2374.2-1997 Power transformers Temperature rise
    AS/NZS 3947.5.1:2000 Low-voltage switchgear and controlgear Control circuit devices and switching elements - Electromechanical control circuit devices
    AS 1033.2-1988 High voltage fuses (For rated voltages exceeding 1000 V) Current-limiting (Powder-filled) type (Reconfirmed 2018)

    Standards Referencing This Book - (Show below) - (Hide below)

    AS 62271.200-2005 High-voltage switchgear and controlgear A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-200, Ed. 1 (2003) MOD)
    AS 62271.201-2008 High-voltage switchgear and controlgear AC insulation-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
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