Bandeau Foudre 
DIREL passif
Passive Electric Current Insulation Unit

category Protection
DIREL « passif » protects against violent energy peaks and surges generated by the electromagnetic effects of lightning and shocks to electricity supply lines and cables. The major difference between this unit and the « DIREL actif » is that it has no mechanical parts, like cut-off switches or isolating switches. The unit includes an isolation transformer with input protected by a type 1 lightning arrester. The transformer output is linked to a 30mA differential cut-off switch to protect users.
This type of unit is used mainly for smaller electric appliances from 500 VA to 6 kVA, and in areas of medium strength lighting strikes. For example, small radio stations in flat environments and small urban computer systems etc...

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