Art-Nr.: UER3067
UR 3067 Unter-/Überspannungsmessrelais
Product information
With the making of the connections to the three phases and the neutral conductor, the relay picks up in the fault-free case and the LEDs light up. The prerequisite for this, however, is that the RMS value of the monitored voltage moves within the set window voltage, i.e. this is not greater than Uso and not smaller than Usu.
The device also includes a phase sequence display [LED green = right rotating field, LED yellow = left rotating field]. In the fault-free state, all LEDs light up green. Fault messages are indicated by means of a red flashing LED. [L1-L2-L3-N]
Relay Knowledge
Background knowledge on standards, technical terms and the correct selection of relays –\npraxisnah prepared.
Read moreRelay Standards and Operating Conditions
Published on 20 July 2026 · Updated on 31 July 2026
According to which standards are relays manufactured and what needs to be considered regarding installation position, voltage peaks and control? An overview.
Read moreRelay technical terms explained
Published on 20 July 2026 · Updated on 31 July 2026
What do contact set, micro disconnection or the utilization categories AC1 to DC13 mean? The most important relay technical terms at a glance.
Read more