CEI EN 60947-4-2 : 2013

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
4 Classification
5 Characteristics of a.c. semiconductor motor
  controllers and starters
6 Product information
7 Normal service, mounting and transport
  conditions
8 Constructional and performance requirements
9 Tests
Annex A (normative) - Marking and identification
        of terminals
Annex B - Vacant
Annex C (normative) - Co-ordination at the crossover
        current between the starter and
        associated SCPD
Annex D - Vacant
Annex E - Vacant
Annex F (informative) - Operating capability
Annex G (informative) - Examples of control circuit
        configurations
Annex H - Vacant
Annex I (normative) - Modified test circuit for
        short-circuit testing of semiconductor
        motor controllers and starters
Annex J (informative) - Flowchart for constructing
        bypassed semiconductor controllers
        tests
Annex K (normative) - Extended functions within
        electronic overload relays
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications
Annex ZZ (informative) - Coverage of Essential
         Requirements of EU Directives

Applicable to a.c. semiconductor motor controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not exceed 1000 V a.c.