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EN 60947-4-3:2014 Standard

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  Keywords:

#state #switching #circuits #may #applied

  Directive

Low voltage (LVD) Directive (2014/35/EU)

  Last Official Journal reference

Wednesday 13th of December 2023

  Description:

Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads

  Purpose

This part of IEC 60947 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical operations by changing the state of a.c. electric circuits between the ON-state and the OFF-state. Typical applications are classified by utilization categories given in Table 2. As controllers, they may be used to reduce the amplitude of the r.m.s. a.c. voltage on the load terminals from that of the applied voltage – either continuously or for a specified period of time. The half-wave period of the a.c. wave form remains unchanged from that of the applied voltage. They may include a series mechanical switching device and are intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. This standard characterizes controllers and contactors for use with or without bypass switching devices.

  Publication

Wednesday 20th of April 2016

  Reference

This standard supersedes the "EN 60947-4-3:2000+ A1:2006+ A2:2011"

Anyway is still possible use the "EN 60947-4-3:2000+ A1:2006+ A2:2011" until June 11th, 2017

  Related Standards

EN 61071:2007

Low voltage (LVD) Directive (2014/35/EU)

Capacitors for power electronics

EN 60998-1:2004

Low voltage (LVD) Directive (2014/35/EU)

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EN 61048:2006

Low voltage (LVD) Directive (2014/35/EU)

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EN 61010-031:2015

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Safety requirements for electrical equipment for measurement, control and laboratory use - Part 031: Safety requirements for hand-...

EN 60998-2-4:2005

Low voltage (LVD) Directive (2014/35/EU)

Connecting devices for low voltage circuits for household and similar purposes - Part 2-4: Particular requirements for twist-on co...

EN 60998-2-3:2004

Low voltage (LVD) Directive (2014/35/EU)

Connecting devices for low-voltage circuits for household and similar purposes - Part 2-3: Particular requirements for connecting ...

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