LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4-2: CONTACTORS AND MOTOR-STARTERS - AC SEMICONDUCTOR MOTOR CONTROLLERS AND STARTERS
International Electrotechnical Committee
FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms, definitions, symbols and abbreviations <br>4 Classification <br>5 Characteristics of a.c. semiconductor motor <br> controllers and starters<br>6 Product information <br>7 Normal service, mounting and transport conditions<br>8 Constructional and performance requirements <br>9 Tests <br>Annex A (normative) - Marking and identification <br> of terminals <br>Annex C (normative) - Co-ordination at the crossover <br> current between the starter and associated SCPD <br>Annex F (informative) - Operating capability<br>Annex G (informative) - Examples of control circuit <br> configurations<br>Annex I (normative) - Modified test circuit for <br> short-circuit testing of semiconductor motor <br> controllers and starters<br>Annex J (informative) - Flowchart for constructing <br> bypassed semiconductor controllers tests <br>Annex K (normative) - Extended functions within <br> electronic overload relays<br>Bibliography
Pertains 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.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 17 |
