DEHNguard protects direct current applications up to 950 V

DEHNguard ME DC Y 950 FM with DCD technology was specially developed for use with DC power sources. DCD, the DC switching device, safely disconnects the protective device in case of overload.
This combined type 1+2 arrester promises maximum system and operational safety throughout the entire life cycle of the electrical installation.

Product highlights

Specially designed for DC systems
DC switching device – now also in the combined arrester
Universally applicable – with and without external lightning protection
Modular design – modules can be replaced individually
Zero leakage current
UL approval
With floating remote signalling contact

No zero-crossing - a problem in DC applications

DCD technology | >>> Video
Video DCD technology

Thermal disconnectors are used in AC applications. In DC applications, however, there is a danger of continuous arcing because there is no zero crossing. DCD technology has been developed to ensure that the disconnector also works safely in direct current applications. It functions like a wedge which safely interrupts the DC current in case of overload.

For you, this means protection against fire damage caused by DC switching arcs.