Varistor dimensions can vary in a wide range. Customer specified dimensions are possible.
We are not limited to rund discs, we can also produce square and rectagular format varistors
If required we also support with metal housing in IP00, IP22 and also GfK-presspack
SiC ceramic has generally a selfhealing caracteristic. This means the varistor is evaporating the failed part oft he ceramic. Now he is protecting the circuit against further impulses with slightly reduced energy parameters.
The temperature stability of our ceramic is higher as the ceramicof our competitors. This is a result of over 70 years of developement in our company. Our SiC ceramic can bear the following temperatures:
Short time 220°C
In case of failure up to 600°C
We have testet our ceramic and also the one of our competitos in al long duration test with load under a temperature of 200°C. This has shown that our ceramic withstand this conditions at least 2 times longer as the others.
Much higher current pulses possible with our products, our ceramic can also protect against lightning impulses