LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 2: CIRCUIT-BREAKERS
International Electrotechnical Committee
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
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
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 121 |
