Siemens Analog monitoring relay, screw, 160 - 690VProduct Overview Advanced analog monitoring relay designed for comprehensive three phase power system protection, featuring phase failure and sequence monitoring with adjustable undervoltage detection capabilities. This SIRIUS 3UG4 series monitoring relay provides multi functional protection including phase sequence verification, phase failure detection, and customizable undervoltage monitoring across a wide voltage range of 160 690 V AC. The device
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Siemens Analog monitoring relay, screw, 160 - 690V