DS/EN 60947-4-3/A1:2007
Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads

Standard No.

DS/EN 60947-4-3/A1:2007

Release Date

2007

Published By

Danish Standards Foundation

Status

Be replaced 2011-11

Replace By

DS/EN 60947-4-3/A2:2011

Latest

DS/EN 60947-4-3/A2:2011

Scope

This part of EN 60947 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical opertions by changing the state of a.c. electric circuits between the ON-state and the OFF-state. 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 mechanicall switching device and are intended to be connected to circuits, the rated voltage of which does not exceed 100

DS/EN 60947-4-3/A1:2007 history

• 2011 DS/EN 60947-4-3/A2:2011 Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads
• 2007 DS/EN 60947-4-3/A1:2007 Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads
• 2001 DS/EN 60947-4-3:2001 Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads