This part of IEC 60947 applies to control and protective switching devices (or equipment) (CPS), the main contacts of which are intended to be connected to circuits of rated voltage not exceeding 1 000 V a.c. or 1 500 V d.c. CPSs are intended to provide both protective and control functions for circuits and are operated otherwise than by hand. They may also fulfill additional functions, such as isolation.
More IEC standard pdf
IEC 61178-2-1 Ed. 1.0 b:1993
Quartz crystal units - A specification in the IEC Quality Assessment System for Electronic Components (IECQ) - Part 2: Sectional specification - Capability approval - Section 1: Blank detail specification
$12.00 $25.00
IEC 60925 Amd.1 Ed. 1.0 b:1996
Amendment 1 - D.C. supplied electronic ballasts for tubular fluorescent lamps - Performance requirements
$9.00 $19.00
IEC 60050-121 Ed. 2.0 b:1998
International Electrotechnical Vocabulary (IEV) - Part 121: Electromagnetism
$208.00 $417.00
