Siemens SIEM mains monitoring relay

Digital adjustable monitoring relay for phase failure, phase sequence, asymmetry, frequency, over- and undervoltage monitoring with phase sequence correction 3x 90-690 V AC, 15-70 Hz, 2 changeover contacts spring-loaded connection SIL 1/PL c. The digital adjustable network monitoring relay SIRIUS 3UG5 monitors phase sequence, failure, and asymmetry, undervoltage and overvoltage, as well as frequency, for example in unstable networks or mobile installations such as air conditioning compressors, refrigerated containers, construction site compressors, cranes, or solar and wind power plants. It is globally applicable due to its wide voltage supply and international certifications. The relay can be variably set for over-, under-threshold, or window monitoring. Delay times and RESET behavior are freely parameterizable. The space requirement in the control cabinet is low due to a narrow design width. Reliable diagnostics are provided by displaying the actual value and type of network fault. All versions feature removable connection terminals. In addition to screw connection technology, the devices are also available with spring-loaded connections for a quick, maintenance-free, and vibration-resistant connection. An automatic rotation direction correction is available upon request. A variant with IO-Link is available for communication connectivity. Additionally, devices with SIL 1/PL c certification are available. The comprehensive accessories, such as device identification labels, replacement terminals, and sealing covers, are uniform for all relays. The network monitoring relays 3UG5 replace the proven series 3UG4. SIRIUS relays - a program for all cases.