ED80 Series

ED80 Series are heavy-duty metal oxide varistors designed mainly for industrial applications. They are equipped with a thermo decoupling device and remote signal ability. They offer excellent surge protection for various electronic equipment such as: windmills, traffic and railway signal systems, communication equipment, waterworks, automatic control devices for power distribution, oil drilling and mining equipment (dredgers, cranes, etc.).

ED80 housings offer excellent protection also when exposed to different kinds of vibrations, dust, moisture, etc.

The advantages of the ED80 Series are: rigid terminals for secure wire contact, a thermo decoupling device which protects the ED80 from varistor failure in the event of abnormal overvoltage. TheED80 also has remote signaling capability with remote terminals and galvanic separation from the main line, a solid plastic housing for secure mounting, and higher insulation resistance (polyurethane filling and plastic housing).


Main Features
Wide Operating Voltage Range VRMS 130 V – 1100 V
High Max. Discharge Current Capability Imax (8/20 µs) 100 kA
– rigid terminals for secure wire contact
– case design provides complete electrical isolation of disc assembly
– thermo decoupling device
– remote signalisation with micro switch and remote terminal
– flame retardant housing (UL 94 V-0)
– flame retardant filling (UL 94 V-0)


 Technical Data
Tested in accordance with IEC 61643-1 IEC 61051-1 and UL 1449
Operating Temperature – 40 … + 85°C
Response Time < 25 ns



ED series catalogue