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EVS-EN 60947-4-3:2001/A1:2007

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

General information

Withdrawn from 01.07.2014
Base Documents
IEC 60947-4-3:1999/A1:2006; EN 60947-4-3:2000/A1:2006
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.07.2014
Main
06.02.2007
Amendment
01.07.2001
Main
This standard applies to 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 given in table 2. As controllers, they may be used to reduce the amplitue 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.

Required fields are indicated with *

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