Low-voltage switchgear and controlgear — Part 4-2: Contactors and motor-starters — AC semiconductor ...
1 Scope
This standard applies 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 1 000 V a.c.
This standard characterizes a.c. semiconductor motor controllers and starters with and without bypass
means.
AC semiconductor motor controllers and starters…
Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and switching elements — ...
1.1 Scope and object
This part of IEC 60947 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.
However, for operational voltages below 100 V a.c. or d.c.,…
Switches for appliances — Part 2-1: Particular requirements for cord switches
1 Scope
Clause 1 of IEC 61058-1:2016 is applicable except as follows:
Addition:
This document applies to cord switches (mechanical or electronic) for appliances actuated by hand, by
foot or by other human activity, to operate or control electrical appliances and other equipment for
household or similar purposes with a rated voltage not exceeding 250 V and a rated current not exceeding
16 A…
Energy management systems — Guidelines for a phased implementation
1 Scope
This document gives guidance for organizations on establishing a phased approach to implement an energy management system (EnMS). This phased approach is intended to support and simplify the implementation of an EnMS for all types of organizations, in particular for small and medium-sized organizations (SMOs).
This document gives guidance on the use of twelve core elements with four…