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Siemens 3UG4614-1BR20 Monitoring Relay, Three Phase Voltage, Insulation Monitoring, 22.5mm Width, Screw Terminal, 2 CO Contacts, Delay 0-20s On and Off Delay Time, 160-690 Line Supply Voltage
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About Siemens 3UG4614-1BR20 Monitoring Relay, Three Phase
The 3UG4614 line monitoring relay has a wide voltage range input and an internal power supply. The device is equipped with a display and is parameterized using three buttons. The unit monitors three-phase networks with regard to phase asymmetry from 5 to 20%, phase failure, under voltage and phase sequence. The hysteresis is adjustable from 1 to 20 V. In addition the device has a response delay and ON-delay from 0 to 20 s in each case. The integrated response delay time responds to phase asymmetry and under voltage. If the direction is incorrect, the device switches off immediately. Thanks to a special measuring method, a phase failure is reliably detected in spite of the wide voltage range from 160 to 690 V and feedback through the load of up to 80 %. The 3UG4614 monitoring relay can be operated on the basis of either the open-circuit or closed-circuit principle and with manual or Auto RESET
