Square Pipe Bolt Fast Fuse

Scope of application

This series fuse is suitable for AC 50Hz, rated voltage to 100V,rated current to 2500A.It is mainly used in the electrical circuit for protecting the semiconductor device and it’s the complete set installment from short-circuit(aR).The rated breaking capacity is up to 100KA.They conform to national standard GB 13539.1/GB13539.4 and international electical committee standard IEC60269-1/IEC60269.4.

Construction Feature

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 contact.The model of fuse body have square tube knife shape contact and squareflat contact.The fuse body may have indicator or striker,when the fuse element fusing the indicator or the striker can act immediately to display the fuse body has been

blown out (indicator) and push the micro switch(striker) to send out each kind of signal or automatically transfer the circuit.

Main technical parameter

1. NGT series