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7P Series
Type 7P.04 - Surge Protection Device (SPD)
Function and features:
Type 7P.04, surge arresters, SPD Type 1 + 2, for TT systems
and TN-S three-phase with neutral.
Varistor protection + GDT L1, L2, L3-N + spark gap protection N-PE.
Combination of varistor and gas spark gap + 1 gas spark gap, with signaling with remote contact of the state of the varistor and the presence of the GDT (N-PE). Equipped with “Upside down mount” technology.
Replaceable modules.
Features include:
- SPD suitable for low voltage systems for protection against overvoltages caused by direct discharges, induced and operating overvoltages
- To be installed on the border between zones LPZ 0 and LPZ 1
- Combination of high-performance varistors and gas spark gaps (GDT) which ensure:
• high discharge currents
• high insulation resistance which eliminates the leakage current
• absence of subsequent follow-on current - Extremely low residual voltage
- Replaceable modules
- “Upside down mount” technology (thanks to the double marking of the terminals and the new restraint system of the replaceable module that allows its reversal)
- Visual indicator of the varistor status: functional/to be replaced
- Double screw terminal
- Signaling with remote contact of the varistor status: presence, functioning, to be replaced
- Connector (07P.01) included in the package
- In accordance with EN 61 643-11
- Assembly on 35 mm rail (EN 60715), 36 mm per pole
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