Detailed Product Description
The design of SDF units type ITF is based on the innovative `QUADBREAK' principle. This design enables a drastic reduction in theintensity of arc, which is produced at the time of breaking. Duringbreaking the current path is broken at four places in series, thus thearc is reduced. This leads to less strain on the contacts and the lifeof the switch is increased.
The moving contacts are designed to make two parallel current paths, which produce high electro-magnetic attraction forces during high faults and increase the contact pressure, this eliminates chance of arcing at the contacts and allows the fuse to safely clear the fault. The self-cleaning contacts ensure wiping of deposits during each operation and increase the life of the contacts.