HRN-54N voltage monitoring relay

Monitoring voltage relay HRN-54N
Serves to monitor voltage , phase failure and sequence in switchboards, protection of devices
DESCRIPTION
Serves to monitor voltage , phase failure and sequence in switchboards.
Supply is done from monitored voltage.
Fixed T1(500ms) and adjustable T2 (0.1 – 10 s) delay to eliminate short voltage drops and peak.
In case supply voltage falls below 60 %Un (Uoff lower level)relay immediately breaks with no delay
It is possible to set upper and lower level of monitoring voltage.