Specifies rules for control units, that perform the switching functions in response to thermal detectors in incorporated in rotating electrical machines. Applies to systems comprising a positive temperature coefficient (PTC) thermistor detector having particular characteristics, and its associated control unit. Identical with and reproduced from Edition 1.0 (2003-05) of IEC 60947-8.
Original price was: $78.54.$39.00Current price is: $39.00.
Low-voltage switchgear and controlgear – Control units for built-in thermal protection (PTC) for rotating electrical machines
Standards Australia , 01/01/2005
Pages: 24
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