Analog monitoring relay phase failure and sequence adjustable undervoltage asymmetry 20% fixed 3 x 160 to 690 V AC 50 to 60Hz hysteresis 5% fixed delay time 0-20 s 2 changeover contacts spring-loaded technology Analog adjustable mains monitoring relay SIRIUS 3UG4 for monitoring phase sequence, phase failure and phase asymmetry and/or undervoltage, e.g. in mobile systems such as air conditioning compressors, refrigerated containers, construction site compressors or cranes. Worldwide use through international validation. Different variants enable application-specific product selection. Less space required in the control cabinet thanks to a narrow width. All versions with 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-proof connection. Variants with a wide voltage range without auxiliary voltage can be used in all networks in the world. The comprehensive range of accessories, such as device identification plates, insertion tabs and cover caps, is the same for all relays. SIRIUS relays - a program for all situations.
