Siemens AG Monitor - Relay Output 3UG4512-2BR20

The 3UG4512-2BR20 is a phase failure and sequence monitoring relay for AC voltages 160-690 V at 50-60 Hz, with LED display and two change-over contacts using spring-type terminals. It mounts snap-on with dimensions 94 mm height, 22.5 mm width, 91 mm depth, and operates from -25 °C to +60 °C up to 2000 m altitude. It detects phase failure and sequence with 1 % repeat accuracy. Output contacts are rated 3 A AC-15 at 250 V and 0.2 A DC-13 at 125 V. Galvanic isolation exists between input and output. Surge immunity is 6 kV. IP20 protection, 10,000,000 mechanical switching cycles, and IEC 60068-2-27/2-6 shock and vibration compliance are specified.