DS/EN 60947-8/A1:2007
Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines

Standard No.

DS/EN 60947-8/A1:2007

Release Date

2007

Published By

Danish Standards Foundation

Status

Be replaced 2012-09

Replace By

DS/EN 60947-8/A2:2012

Latest

DS/EN 60947-8/A2:2012

Scope

Specifies rules for control units, which perform the switching functions in response to the thermal detectors incorporated in rotating electrical machines according to EN 60034-11, and the industrial application. It specifies rules for that type of system comprising a positive temperature coefficient (PTC) thermistor detector having particular characteristics, and its associated control unit. The PT100 detectors are covered by EN 60751, where the resistor values are given according to the temperatures of the detector. The present rules lay down the characteristics of association of this particular positive temperature coefficient thermistor detector and its

DS/EN 60947-8/A1:2007 history

• 2012 DS/EN 60947-8/A2:2012 Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
• 2007 DS/EN 60947-8/A1:2007 Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
• 2004 DS/EN 60947-8:2004 Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines