These functional units are used for the undervoltage monitoring of alternating voltage in 3- or 1-phase supply systems. They monitor the power supply and protect motors and other power-consuming modules from the effects of phase errors. Voltages that are too low or loss of phase can lead to system failures and as such represent an enormous potential for danger.
Important notice
For your own safety, please switch to an up-to-date browser in order to be able to make full use of our services.
Your web browser is outdated and contains open security vulnerabilities
To ensure the security of your data, some functions on our website may not be accessible with your browser.
For your own safety, please switch to an up-to-date browser in order to be able to make full use of our services.
Microsoft Edge
Successor to Internet Explorer
Google Chrome
Mozilla Firefox