IEC 62019 pdf download – Electrical accessories – Circuit-breakers and similar equipment for household use – Auxiliary contact units

IEC 62019 pdf download – Electrical accessories – Circuit-breakers and similar equipment for household use – Auxiliary contact units
1 scope and object
This International Standard applies to auxiliary electromechanical contact units associated (or
intended to be associated) with circuit-breakers for overcurrent protection，and with residualcurrent operated circuit-breakers with or without integral overcurrent protection for householdand similar installations, having a rated voltage not exceeding 440 v a.c. and 250 v d.c., and a
rated current not exceeding 10A.
NOTE 1 These requirements may also be used as guidance for auxiliary contacts units intended to be assembledwith other switching devices for household and similar installations.
NOTE 2 lt is recommended that the advice of the manufacturer be sought concerning any application with lowlevel energy appliances (low level values of current and/or voltage.)For low-energy contacts， specificrecommendations are given in lEC 60947-5-4.
The object of this standard is to state
a) the characteristics of the auxiliary contact units;
b) their electrical and mechanical requirements with respect to
1) the various duties to be performed;
2) the significance of the rated characteristics and of the markings;3) the tests to verify the rated characteristics;
c) the functional requirements to be satisfied by the auxiliary contact units with respect to
1) environmental conditions, including those of enclosed equipment;
2) dielectric properties;
3) terminals;
4) safety of use.
2Normative references
The following referenced documents are indispensable for the application of this document. Fordated references,only the edition cited applies.For undated references, the latest edition ofthe referenced document (including any amendments) applies.
IEC 60050(441):1984，International Electrotechnical Vocabulary (IEV) – Chapter 441:Switchgear,controlgear and fuses
IEC 60065:1998, Audio, video and similar apparatus – Safety requirements
IEC 60112:1979，Method for determining the comparative and the proof tracking indices ofsolid insulating materials under moist conditions
lEC 60617 (all parts), Graphical symbols for diagrams
IEC 60664-3:1992，Insulation coordination for equipment within low-voltage systems – Part 3:Use of coating to achieve insulation coordination of printed board assemblies
lEC 60898:1995,Electrical accessories – Circuit-breakers for overcurrent protection forhousehold and similar installations
IEC 60998-2-2:1991，Connecting devices for low voltage circuits for household and similarpurposes – Part 2-2: Particular requirements for connecting devices as separate entities withscrewless-type clamping units
IEC 60947-5-1:1997,Low-voltage switchgear and controlgear – Part 5: Control circuit devicesand switching elements – Section one: Electromechanical control circuit devices
IEC 60947-5-4:1996,Low-voltage switchgear and controlgear – Part 5: Control circuit devicesand switching elements – Section 4: Methods of assessing the performance of low-energycontacts. Special tests
IEC 61008-1:1996，Residual current operated circuit-breakers without integral overcurrentprotection for household and similar uses (RCCBs)- Part 1: General rules
IEC61009-1:1996,Residual current operated circuit-breakers with integral overcurrentprotection for household and similar uses (RCBOs)-Part 1: General rules
IEC 61210:1993,Connecting devices – Flat quick-connect terminations for electrical copperconductors – Safety requirements
ISO 306:1994, Plastics – Thermoplastic materials – Determination of Vicat softening temperaturevsT)
3Definitions
For the purpose of this International Standard, the following definitions apply.
3.1
auxiliary contact
contact included in an auxiliary circuit and mechanically operated by the switching device[IEV441-15-10]
3.2
auxiliary contact unit
unit containing one or more control and/or auxiliary contacts mechanically operated by a mainswitching device
NOTE The main switching device may be a circuit-breaker,RCCB,RCBO,switch, etc.