1. The 3UG4621-1AW30 is a Siemens SIRIUS 3UG4 motor protection relay. It is designed to protect single- and three-phase motors against overloads, under-voltage, and locked rotor, and it can monitor a motor's power and temperature. The 3UG4621-1AW30 has a switching current of 10A and a supply voltage of either 120/240V AC or 110/220V DC.
2. It also features a built-in display and up to four adjustable trip classes. Additionally, it can be connected to a PLC, enabling quick data exchange between the motor and process control.
3. The 3UG4621-1AW30 has a modular design, which enables it to be combined with additional relays and contactors for expanded protection capabilities. It also has input and output terminals that enable it to be easily connected to other devices such as PLCs, HMIs, and I/O systems.