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IEC 60730-2-2

2.1 Edition, September 1, 2005

Complete Document

Automatic electrical controls for household and similar use - Part 2-2: Particular requirements for thermal motor protectors

Includes all amendments and changes through Change/Amendment , September 2005


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Superseded By: IEC 60730-2-22

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W/D S/S BY IEC 60730-2-22
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Description / Abstract:

This clause of Part 1 is replaced by the following:

This part of IEC 60730 applies to the partial evaluation of thermal motor protectors, as defined in IEC 60730-1, for household and similar use, including heating, air conditioning and similar applications.

A thermal motor protector is an integrated control which is dependent on its correct mounting and fixing in or on a motor and which can only be fully tested in combination with the relevant motor.

Requirements concerning the testing of the combination of motor and thermal motor protector are given in annex AA for information and include requirements taken from other IEC standards.

This part of IEC 60730 applies to thermal motor protectors using thermistors (NTC, PTC), additional requirements for which are contained in annex J of part 1.

This standard applies to the inherent safety, to the operating values, operating times and operating sequences where such are associated with equipment safety and to the testing of thermal motor protectors used in or on household or similar equipment.

This standard is also applicable to thermal motor protectors for appliances within the scope of IEC 60335-1.

Throughout this standard, the word "equipment" means "appliance and equipment".

Throughout this standard, the words "not applicable" mean that the test is not applicable to the evaluation of the thermal motor protector submitted separately. However, the test may be applicable to the evaluation of the thermal motor protector in combination with the motor.

Thermal motor protectors for equipment not intended for normal household use, but which nevertheless may be used by the public, such as equipment intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard.

This standard does not apply to thermal motor protectors designed exclusively for industrial applications.

This standard does not apply to other means of motor protection.

This standard does not apply to a manual device for opening the circuit.

This standard does not apply to thermal motor protectors for hermetic or semi-hermetic motor compressors.

NOTE For such devices, IEC 60730-2-4 is applicable.1

This standard applies to thermal motor protectors for use with electric motors with a rated voltage equal to or less than 690 V and a rated output of 11 kW or less.

1 IEC 60730-2-4:2001, Automatic electrical controls for household and similar use. Part 2: Particular requirements for thermal motor protectors for motor-compressors of hermetic and semi-hermetic type