DEHNguard M DC ACI 1250 FM Maximum safety for maximum charging power

Discover our specialist for high-power charging and fast-charging stations: The modular Type 2 DEHNguard M DC ACI 1250 FM arrester has been specially designed for use in DC charging equipment up to 1,250 V. Thanks to the integrated ACI switch/spark gap combination, its protection modules combine the necessary overvoltage protection with the backup fuse. You save on an external backup fuse, and this results in many other advantages.

  • Already fit for IEC 61643-41
  • Used without a backup fuse thanks to ACI technology
  • Max. continuous operating voltage UC: 1250 V
  • Short-circuit current IK: 100 kA
Hypercharger with installed DEHNguard M DC ACI

What makes the DEHNguard M DC ACI stand out

01
Already fit for IEC 61643-41

With a protection level of 2.5 kV and a short-circuit withstand capability of 100 kA, the parameters have already been adapted to the upcoming standard.

02
Space-saving

Thanks to the integrated ACI technology, no external backup fuse needs to be installed. This saves valuable space in existing charging stations and allows new models to be designed more compactly.

03
No dimensioning necessary

The elimination of an external backup fuse eliminates the need for laborious dimensioning of backup fuses, selectivity and cross-sectional areas when designing new charging posts. The integrated switch/spark gap combination is precisely adapted to the arrester.

04
Cost saving

The external backup fuse normally required for the surge arrester of each charging point is no longer necessary. So the more charging points your HPC park has, the more you save.

05
Easy maintenance

The pluggable modules can be replaced quickly and easily in the event of a fault. In addition, the floating remote signalling contact always provides reliable information about the status of the arrester.

Technical features at a glance

The "no-worries solution" from DEHN

ACI technology: For maximum safety in the switchgear cabinet 

No more time-consuming dimensioning! Our Type 1 and Type 2 arresters with ACI technology have an integrated switch/spark gap combination. This replaces the otherwise necessary backup fuse. This provides safety, enables flexible installation and raises system availability to a new level.  

DEHN

The DEHN ACI technology

  • Peak-level reliability and system availability ​ 
  • Reliable dimensioning and space savings due to the elimination of the separate backup fuse ​ 
  • Long service life thanks to high TOV withstand and zero leakage current 
  • Easy installation due to a smaller cross-sectional area 
To ACI technology

Effective protection solution also for battery storage systems

The effects of lightning discharges pose a serious threat to battery storage systems. The surges resulting from this exceed the dielectric strength of the installed electronic components inside the storage system many times over. Constant availability of these storage systems is a decisive factor for the energy revolution. The DEHNguard M DC ACI 1250 FM is used in DC battery storage systems up to a maximum short-circuit strength (ISCCR) ≤100 kA for t ≤7.5 ms.
Battery storage protected by DEHN

Quickly to the product

Downloads

Any questions?

Write us a message.

I agree to the processing of my personal data in accordance with the Data Privacy Statement. Take me to the Data Privacy Statement.

 
Here you will find all information about the processing of your personal data.
CAPTCHA
8 + 10 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.
This question tests whether you are human or a computer and prevents automated spam submissions.
We are here for you!
itss@dehn.de
+49 9181 906 1740 To customer service