DEHN SE was named as finalist of the The smarter E AWARD 2025 in the Category "E-Mobility" for the application of its DEHNguard M DC ACI 1250 FM.
German company DEHN SE presents the DEHNguard M DC ACI 1250 FM, a type 2 power protection switch with integrated overvoltage protection for DC charging stations. This compact unit combines two safety devices in one single component. It is suitable for DC charging stations of up to 1,250 volts, which means it can be used for CCS charging stations and, with some restrictions, for MCS charging stations. The overvoltage protection is triggered, for example, by lightning strikes or overvoltage in the power grid. An additional fuse that comes already pre-installed is also part of the unit – normally, this has to be designed and installed separately. DEHNguard enables a simpler, more compact and more cost-effective charging unit set-up and also saves on development costs. The system is already designed for the upcoming IEC 61643-41, but also complies with the IEC 61851-23:2023 that is currently in force.