Automatic electrical controls for household and similar use Part 2: Particular requirements for thermal motor protectors
|Publication Date:||1 June 1994|
This clause of Part 1 is replaced by the following:
This standard applies to the partial evaluation of thermal motor protectors as defined in Publication 730-1 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 Appendix AA for information and include requirements taken from other IEC standards.
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 Publication 335.
Throughout this standard the word "equipment" means "appliance and equipment".
Throughout the mandatory text of 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.
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.
This standard applies to thermal motor protectors for use with electric motors with a rated volta9e equal to or less than 660 V and a rated output of 11 kW or less.