Type 2 Surge Arrester with Lifetime Indication (LI)
The new range of surge arresters from DEHN incorporate an integrated early warning system based on lifetime indication. They are ideally suited for protection of installations which must be permanently available, such as offshore wind turbines, power stations and data centres.
The DEHNguard® SE H LI type 2 surge arrester with lifetime indication protects installations with high availability requirements. The three step indication shows at an early stage whether protection modules have to be replaced and acts as a pre-failure warning. The repeatedly used, but still functional arrester can be quickly identified and changed without prolonged interruption of the protective circuit.
• Three-step indication “green / red / yellow”
• SPD can be used without de-rating until it is replaced (indication “yellow”)
• SPD can be integrated in condition monitoring systems
• Preventive maintenance concepts can easily be implemented
• High discharge capacity: Imax up to 65 kA (8/20 μs)
• Types from 75 to 1000 V
• Single-pole version with 1.5 modules
DEHN UK
01484 859111
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