The 7P Series consists of Type 1 + 2, Type 1, Type 2 and Type 3 surge arresters.

These devices include the following features (according to Type):

• Surge arrester suitable for 230 V or 400 V networks
• Single phase systems or three-phase systems
• Replaceable varistor module and encapsulated spark gap modules
• Visual and remote signalling of varistor status
• 35mm rail (EN 60715) mount