AS NZS IEC 60947.7.3:2015 pdf free
AS NZS IEC 60947.7.3:2015 pdf free.Low-voltage switchgear and controlgear
The following information shall be stated by the manufacturer, if applicable, e.g in the manufacturer’s data sheet or catalogue or on the packing unit:
a) IEC 60947-7-3, if the manufacturer claims compliance with this standard;
b) the rated cross-section;
c) the rated connecting capacity, if different from Table 2 of IEC 60947-7-1, including the number of conductors simultaneously connectable;
d) the rated insulation voltage (U) of the terminal block base and the fuse-carrier, if applicable;
e) the working voltage or working voltage range, primarily determined by the fuse-link or by additional components, e.g. illuminated indicators;
f) rated impulse withstand voltage (Ump);
NOTE This value may be marked on the fuse terminal block only if the rated insulation voltage (U) or the working voltage is also marked on the fuse terminal block, e.g. 250 V14 kV.
g) rated value of the power dissipation for overload and short-circuit protection (Pv) and rated current of the fuse-link as declared by the manufacturer
– in case of separate arrangement,
– in case of compound arrangement;
h) rated value of the power dissipation for exclusive short-circuit protection (Pv<) and rated current of the fuse-link as declared by the manufacturer
– in case of separate arrangement,
– in case of compound arrangement;
i) operating conditions, if different from Clause 6;
j) size of the fuse-link.
a)”No overload protection” in case of fuse terminal blocks which are designed exclusively for short-circuit protection.
b)”No overload protection in compound arrangement” in case of fuse terminal blocks which are designed for overload only in separate arrangement and short-circuit protection in compound arrangement.
The breaking capacity of the fuse-link(s) shall be selected according to expected short-circuit level at the point of installation. .
NOTE A warning may be written on the package and the literature to notify that the breaking capacity of the fuse-link(s) according to IEC 60127-2 shall be selected according to expected short-circuit level at the point of installation.AS NZS IEC 60947.7.3 pdf free download.
