Siemens 3ug4614 1br20 three phase mains voltage monitoring relay digital dpdt co
The sirius monitoring relay 3ug4 provide optimum protection for machinery and equipment permanently installed to protect against over or undervoltage or for the complete network monitoring with portable equipment also monitoring of the load of motors and the functionality of electrical loads is done by monitoring relay 3ug4 for current cos phi and active current monitoring the monitoring relay 3ug4 also control non electrical quantities such as liquid levels or even the speed of motorsspec