DEHNguard SE CI 440 - for Main Voltages up to 400/690 V
With integrated backup fuse!
In the type 2 surge arrester DEHNguard SE CI overvoltage protection and backup fuse are combined in a single device. An enormous benefit considering the dimensioning of the switchgear cabinet and in case of retrofitting. Thus, safety can be increased and costs can be saved.
Choose the appropriate arrester for your application:
With an integrated backup fuse, the benefits are obvious:
- Shorter planning time
Choosing the right backup fuse, calculating the down conductors, creating and labelling drawings – planning time which you can save.
- Saves material
Fuse base, fuse links, connecting cables – no longer necessary. So, you reduce the material costs.
- Shorter installation time
Unpacking, preparing, cutting to length, stripping and clamping – not necessary anymore either. This saves man-hours.
- Simplified insulation test
Replace the protection module quickly and easily without tools. A genuine advantage with regard to the installation time. The modular system also saves a lot of time when it comes to the regular insulation tests.
- Increased installation safety
It is easy to make a mistake when selecting the fuse – production downtimes or system failure is the worst case scenario. With the decision for the complete unit you are on the safe side and your employees more relaxed.
Rapid diagnosis by remote monitoring
By coupling with the remote signalling contact, the internal fuse is automatically monitored. This keeps you informed about the state of both arrester and fuse in real time.
According to the installation standard, the maximum cable length is limited to 0.5 metres. Wiring an external back-up fuse already uses up a considerable portion of this length, significantly restricting your installation possibilities. With CI arresters, you stay flexible and can easily meet the requirements of the standard.
More safety due to lower protection level
The protection level specified applies to the surge protective device itself. If an external backup fuse is added, the protection level changes for the worse. DG SE CI (WE) 440 FM, in contrast, has the value of 2 kV as a complete unit which, for you, means that nothing is lost here!
Note: For 500V IT networks please select DEHNbloc Maxi CI 760