RVN - 0.5 arresters are intended for protection against atmospheric overvoltage of the insulation of AC electrical equipment with a frequency of 50 and 60 Hz. They are made for networks with any neutral grounding system.
Group: Spark gaps
The PKN - 011 - 10 fuse is used to protect voltage transformers; it can also be used for circuits with a rated voltage of 3 and 10 kV. Fuse ПКН 011 - 10.
Group: High-voltage safety locks