AS NZS IEC 60947.5.8:2015 pdf free
AS NZS IEC 60947.5.8:2015 pdf free.Low-voltage switchgear and controlgear
The following information shall be given by the manufacturer:
a) The manufacturer’s name or trade mark.
b) A type designation or serial number that makes it possible to get the relevant information concerning the switching element (or the entire control switch) from the manufacturer.
c)“IEC 60947-5-8″ if the manufacturer claims compliance with this standard.
d) Three-position enabling switches shall be indelibly and legibly marked by the symbol:
NOTE If it is not possible to affix the marking to the switch due to size constraints, then the symbol may be put in the instructions for installation, operation and maintenance.
Basic rated values and utilization
e) Actuating forces and operational stroke.
f) Rated operational voltages (see 4.3.1.1 of IEC 60947-5-1).
g) Utiization category and rated operational currents at the rated operational voltages of the switching element.
h) Rated insulation voltage (see 4.3.1.2 of IEC 60947-5-1).
i) Rated impulse withstand voltage Uimp in accordance with 4.3.1.3 of IEC 60947-1.
a) j) IP code (see 5.1 and Annex C of IEC 60947-1).
k) Pollution degree (see 6.1 .3.2 of IEC 60947-5-1).
l) Type and maximum ratings of short-circuit protective device (see 8.3.4.3 of IEC 60947-5-1). .
Marking of data specified in items a), b), c) and d) of 5.1 is mandatory on the nameplate of the three-position enabling switch in order to permit the complete information to be obtained from the manufacturer.
Marking shall be indelible and easily legible, and shall not be placed on screws and easily removable parts.
W henever space permits, data under items e) to o) of 5.1 shall be included on the nameplate,or on the three-position enabling switch or otherwise in the manufacturer’s published literature.
Unless otherwise stated by the manufacturer, a three-position enabling switch is intended for installation under environmental conditions of pollution degree 3. However, other pollution degrees may apply, depending upon the micro-environment.AS NZS IEC 60947.5.8 pdf free download.
