Mains and system protection

NA protection – tailor-made solutions for every system

Depending on the national directive, generating plants (EEA) must be shut down in the event of impermissible voltage or frequency deviations in the low-voltage grid.

If the limit values permissible in the application rule are exceeded, our grid and system protection ensures that the generation plant is automatically disconnected from the grid with the one-fault safety. If the mains voltage or mains frequency is back in the permissible range, the system is automatically switched on again. In addition, our NA protection prevents feed-back to a de-energized mains (minimum voltage lock).

Flexible and individual solutions

We offer both standard products and individual external NA protection solutions adapted to the needs of the respective photovoltaic system. Our solutions ensure the highest level of safety and reliability for your generation plant.