MVR 31

MVR31 is a multifunctional voltage monitoring relay used to monitor the value of alternating or direct voltage in 1-phase circuits.

Monitors voltage exceeding the upper voltage level (Umax) and falling below the lower voltage level (Umin) - according to selected function.

It is used to monitor the value of alternating or direct voltage in 1-phase circuits.
Supply voltage from monitored voltage.
Monitors voltage exceeding the upper voltage level (Umax) and falling below the lower voltage level (Umin) – according to the selected function.
Smooth adjustment of both voltage levels – the lower level Umin is set in % of the upper level Umax.
Adjustable time delay (to eliminate short-term voltage drops and spikes).
Option to select functions with fault state memory (Latch).
The fault state memory can be reseted by the control input (R).
Measures true root mean square value of the voltage - TRUE RMS.