Siemens SIEM mains monitoring relay

Monitoring relay for phase failure, phase sequence, and asymmetry monitoring, 3x 160-690 V AC, 15-70 Hz, with 2 changeover contacts and screw terminals. The SIRIUS 3UG5 network monitoring relay with fixed function monitors phase sequence, failure, and asymmetry, for example, in mobile installations such as air conditioning compressors, refrigerated containers, construction site compressors, cranes, or solar and wind power plants. It is suitable for worldwide use due to international certifications. The space requirement in the control cabinet is minimized by the narrow design width. All versions feature removable connection terminals. In addition to screw terminal technology, the devices are also available with spring-loaded terminals for quick, maintenance-free, and vibration-resistant connections. Variants with a wide voltage range without auxiliary voltage can be used in all networks worldwide. Additionally, devices with SIL 1/PL c certification are available. The comprehensive accessories, such as device labeling plates, replacement terminals, and sealing covers, are uniform for all relays. The 3UG5 network monitoring relays replace the proven 3UG4 series. SIRIUS relays - a program for all cases.