IEC 60947-2 : 2016

LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 2: CIRCUIT-BREAKERS

International Electrotechnical Committee

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FOREWORD
1 General
2 Terms and definitions
3 Classification
4 Characteristics of circuit-breakers
5 Product information
6 Normal service, mounting and transport conditions
7 Constructional and performance requirements
8 Tests
Annex A (normative) - Co-ordination between a circuit-breaker
        and another short-circuit protective device associated
        in the same circuit
Annex B (normative) - Circuit-breakers incorporating residual
        current protection
Annex C (normative) - Individual pole short-circuit test sequence
Annex D Vacant
Annex E (informative) - Items subject to agreement between
        manufacturer and user
Annex F (normative) - Additional tests for circuit-breakers
        with electronic over-current protection
Annex H (normative) - Test sequence for circuit-breakers for
        IT systems
Annex J (normative) - Electromagnetic compatibility (EMC)
        - Requirements and test methods for circuit-breakers
Annex K (informative) - Glossary of symbols and graphical
        representation of characteristics
Annex L (normative) - Circuit-breakers not fulfilling the
        requirements for overcurrent protection
Annex M (normative) - Modular residual current devices
         (without integral current breaking device)
Annex N (normative) - Electromagnetic compatibility (EMC)
        - Additional requirements and test methods for devices
        not covered by Annex B, Annex F and Annex M
Annex O (normative) - Instantaneous trip circuit-breakers
         (ICB)
Annex P (normative) - DC circuit-breakers for use in
        photovoltaic (PV) applications
Annex Q Vacant
Annex R (normative) - Circuit-breakers incorporating
        residual current protection with automatic re-closing
        functions
Bibliography

Abstract

Pertains to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which does not exceed 1000 V a.c. or 1500 V d.c.; it also contains additional requirements for integrally fused circuit-breakers.