Glossary For LV Low Voltage Fuses | Pro Fuse - Pro Fuse ( NH
knife-blade Fuse )
Common or Fast
This series fuse is suitable for AC 45 ~ 62 Hz, rated voltage to
1140V, rated current to 1250A. It is mainly used in the electric
installation for protecting circuit from overload and short circuit
( gG / GL ); it also may derive for protecting the semiconductor
device and others complete set installment from short - circuit (
aR ) as well as the electric motor from short - circuit (aM).
The rated breaking capability for this series fuse is to 120kA.
This series fuse comforms to national standard GB 13539.1 - 2008 /
iec 60269 - 1:2006, GB13539.2-2008/IEC60269-2:2006 and Inernational
electrical committee standard.
The variable cross - section fuse body made by pure copper / silver
piece ( or silver wire ) is sealed in the fusion tube which is made
by the high strength porcelain; there is full of the high - purity
quartz sand processed after chemistry to take the extinguishing of
arc medium in the tube. The two sides of the fuse use the spot
welding to reliably connect with the end plate ( or junction panel
) and to form the knife shape contact insert type structure. The
fuse may have fuse indiator or striker, when the fuse element
fusing it can demonstrate fusing ( indicator ) or transforms each
kind of signal as well as automatic transfer circuit ( striker ).
In three phase circuits, the use of fuses entails the risk of
single phasing. That is, if the fuse of one phase blows, the motor
may be exposed to single phasing which may cause heating and damage
the motor. For these reasons, three phase fuse units are designed
to isolate all phases when the fuse on one of the phases is blown.
|No.||Matched with fuse body||Rated Voltage ( v )||Rated Current ( A )||Overall Dimension|
|0101||NT00 , NT00C||690||160||119||101||32||54|
|0104||NT1 , NH1||690||250||208||176||32||82|
|0105||NT2 , NH2||690||400||224||200||35||89|
|0106||NT3 , NH3||690||630||239||210||40||106|
► Trade Items of Product
|Package||Inner boxes and Outer cartons|
|Delivery Terms||FOB,CIF, EXW, Express|
|Delivery Time||within 7 days after confirmation|
|Supply Ability||100000pcs per week|
|Port||Shanghai or Ningbo|