DD CLC/TS 61643-12:2006

This standard DD CLC/TS 61643-12:2006 Low-voltage surge protective devices is classified in these ICS categories:

• 29.240.10 Substations. Surge arresters

Applies to inductive and capacitive proximity switches that sense the presence of metallic and/or non-metallic objects, ultrasonic proximity switches that sense the presence of sound reflecting objects, photoelectric proximity switches that sense the presence of objects and non-mechanical magnetic proximity switches that sense the presence of objects with a magnetic field. These proximity switches are self-contained, have semiconductor switching elements and are intended to be connected to circuits the rated voltage of which does not exceed 250 V 50 Hz/60 Hz a.c. or 300 V d.c. This Standard is not intended to cover proximity switches with analogue outputs. This consolidated version consists of the second edition (1997), its amendment 1 (1999) and its amendment 2 (2003). Therefore, no need to order amendments in addition to this publication.