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Marcom Schaltanlagenbauer
Compact knowledge switchgear manufacturers

Product tip: DEHNguard ACI

Surge protection always safely dimensioned

ACI Technology - Advanced Circuit Interruption - improves the safety of electrical systems.

What is special about it: The switch / spark gap combination integrated in type 2 arrester DEHNguard ACI makes upstream fuses superfluous. This saves you time, space and material.

A further bonus: You eliminate those configuration errors which can otherwise be made when selecting and dimensioning a backup fuse.

Greater flexibility

Cable lengths: clever implementation of the 0.5 m rule

Whether series connection, STAK or ACI / CI arresters ... DEHN products keep you flexible and allow you to comply with the 0.5 m stipulated in IEC 60364-5-53 in any and every switchgear installation.


With this compact standard work, you have all the relevant information on lightning and surge protection quickly at hand.

Here you will find detailed, practical protection recommendations for various applications.


Have you got any questions? Contact us.

Technical support

Phone: +49 9181 906 1750

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