Monitoring relay for phase sequence monitoring 3x 160-690 V AC, 15-70 Hz, 1 changeover contact with screw connection. The SIRIUS 3UG5 network monitoring relay features a fixed function for monitoring 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 compact design requires less space in the control cabinet thanks to a narrow width. All models come with removable terminal blocks. In addition to screw connection technology, the devices are also available with spring-loaded connections for quick, maintenance-free, and vibration-resistant connections. Variants with a wide voltage range that do not require 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 identification labels, replacement terminals, and sealing covers, are standardized for all relays. The 3UG5 network monitoring relays replace the proven 3UG4 series. SIRIUS relays - a solution for every application.