Heavy-duty Varistor and spark gap based Type 1+2 Surge Arrester. Use in TT system main distribution boards on the boundary of LPZ0 and LPZ1.
Suitable for houses, commercial and industrial buildings.
Kingsmill’s coordinated mains devices provide complete protection from the entry point to equipment.
- Remote signalling
- Reversible installation
- Biconnect terminals
- Locking pluggable modules
- Optical lifetime status indication
Benefits: No follow-through current. No leakage current. Coordinated range (install in close proximity to each other)
Standards: BS:EN 62305 (Lightning Protection) and EN 61643-11 (Surge Protection Devices).
LPL I + II
System: Single Phase TN-C
MDB: Boundary of LPZ0 and LPZ1
SDB: Boundary of LPZ1 and LPZ2 if >100m away from MDB.
In a well-designed system, it is important that for each building, both the incoming and outgoing circuits are protected by surge protection devices (where the cables enter and exit the building).
- Mains power supplies – including UPS
- Telephone lines
- Data communication lines
- Instrumentation, control, signaling lines
- Coaxial lines for CCTV, TV, & antenna cables
Field-based electronic equipment also needs to be protected.