IEC 60947-5-1:2003+A1:2009 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies to control circuit devices having a rated voltage not exceeding 1 000 V a.c. (at a frequency not exceeding 1 000 Hz) or 600 V d.c. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. It bears the edition number 3.1.<br /><br />This publication should be read in conjunction with <a href='http://webstore.iec.ch/webstore/webstore.nsf/artnum/038067'>IE
C 60947-1:2007</a>.
<b>This consolidated version consists of the third edition (2003)
and its amendment 1 (2009). Therefore, no need to order amendment in
addition to this publication.</b>