Minimum allowable values of energy efficiency and energy efficiency grades for AC contactors
1 Scope
This standard specifies the minimum allowable values of energy efficiency, evaluating values of energy conservation, energy efficiency grades and test methods for AC contactors (hereinafter referred to as contactors).
This standard is applicable to contactors with rated frequency of 50 Hz, rated working voltage not exceeding 1,140 V and rated working current of 9A–630A.
This standard is not applicable to contactor and semiconductor contactor (solid contactor) with additional power saving devices”.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 14048.1 Low-voltage switchgear and controlgear—Part 1: General rules (GB 14048.1-2006, IEC 60947-1: 2001, MOD)
GB 14048.4 Low-voltage switchgear and controlgear—Electromechanical contactors and motor-starters (GB 14048.4-2003, IEC 60947-4-1: 2000, IDT)
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
holding power
apparent power consumed by the contactor in holding state, in (V·A)
3.2
minimum allowable values of energy efficiency for AC contactors
minimum allowable values of holding power of contactors under the test conditions specified in the standard
3.3
evaluating values of energy conservation for AC contactors
minimum allowable values of holding power of contactors that meets the requirements of energy conservation certification under the test conditions specified in the standard
4 Technical requirements
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
