1. The 3UG4501-1AA30 is a Siemens SIRIUS 3UG4 series three-phase monitor relay. It provides three-phase monitoring, current and voltage measuring, and overload protection.
2. This relay is designed to monitor and protect three-phase systems by measuring current and voltage. The 3UG4501-1AA30 can identify abnormal conditions, such as short circuits, overload or underload, or open circuit.
3. This product also features automatic or manual reset, adjustable current and voltage measuring, adjustable time delay settings, as well as positive indicator for three-phase imbalance and/or phase failure. The rated load current of this relay can range from 0.05 A to 20 A. It is suitable for operation in temperatures ranging from -25 °C to +60 °C.