Siemens AG Monitor - Relay Output 3UG46162CR20

The 3UG4616-2CR20 is a digital network monitoring relay for 3-phase AC voltage, detecting undervoltage, overvoltage, phase failure, phase sequence, and voltage asymmetry. It operates from 90 to 400 V AC at 50 or 60 Hz with an adjustable response delay of 0.1 to 20 seconds. The relay features two changeover (CO) contacts rated for 3 A at 250 V AC and 1 A at 24 V DC, with spring-type terminals supporting conductor cross-sections of 0.25 to 1.5 mm². The device has an IP20 protection rating, snap-on mounting, and physical dimensions of 103 mm height, 22.5 mm width, and 91 mm depth. It is certified for overvoltage category III up to 690 V and complies with IEC 61000-4-2, IEC 61000-4-4, and IEC 61000-4-5 for electromagnetic compatibility. The operating temperature range is -25 °C to +60 °C, and it is rated for installation up to 2000 m altitude.