CEI EN 60947-4-1
Low-voltage switchgear and controlgear Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
Organization: | CEI |
Publication Date: | 1 March 2013 |
Status: | inactive |
Page Count: | 30 |
ICS Code (Other electrical accessories): | 29.120.99 |
ICS Code (Low voltage switchgear and controlgear): | 29.130.20 |
scope:
INTRODUCTION
This amendment includes the following significant technical changes with respect to the previous edition 3 (2009):
• introduction of the motor management starter;
• definitions and measurement method of the power consumption of the control circuit during holding and pick-up operations;
• measurement method of the pole impedance;
• requirements for screwless terminals;
• performance requirements for latched contactors;
• alignments to Amendment 1 of IEC 60947-1:2007;
• harmonisation with IEC 60947-2 of the operation tests of under-voltage relays and shunt releases;
• short-circuit tests harmonisation with North America;
• test requirements for utilisation AC-6b capacitor load;
• polarity for DC contactors;
• dielectric test method in presence of built-in varistor;
• addition of an extended function for electronic overload relay: control functions.
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