The expansion of the charging infrastructure for electric mobility is gaining momentum. Although there is still a long way to go before charging points are available everywhere, it is already crucial to protect these investments and ensure their uninterrupted operation. DEHN is now expanding its portfolio to include the DEHNguard M DC ACI 1250 FM, a surge arrester specially developed for use in HPCs and fast charging stations up to 1250 V. The device is also a reliable component in DC battery storage systems.
Quick and easy commissioning and, ultimately, long-term reliable operation of the equipment are the main priority for operators and installers of charging stations. Surge protective devices such as the new DEHNguard M DC ACI 1250 FM are an essential part of the protection concept for these systems. With a protection level of 2.5 kV and short-circuit resistance of 100 kA, this modular Type 2 arrester is also ideal for use in battery storage systems. In addition, non-response up to 1200 V fulfils the normative requirement of IEC 61851-23.
The built-in ACI technology with integrated switch-spark gap combination eliminates the need for an external back-up fuse, saving valuable space in the charging post. There is no need for complex dimensioning of back-up fuses, selectivity and connection cross-sections when designing new charging points.
The pluggable modules can be replaced quickly and easily in the event of a defect. The floating remote signalling contact on the underside of the device provides reliable information about the status of the arrester for particularly easy remote monitoring.
