Spark gap device having multiple nodes
Spark gap retrofit module for surge arrester
Spark-gap device, particularly high-voltage spark-gap device
Stabilizing device for a transmission line-mounted surge...
Station protector
Station protector for communications lines
Station protector for telecommunications systems
Station protector with a three-electrode gas tube arrester
Substation with surge arresters
Surface-mountable device for protection against...
Surge absorber
Surge absorber
Surge absorber
Surge absorber
Surge absorber
Surge absorber
Surge absorber
Surge absorber
Surge absorber
Surge absorber