The ABB 1SFA616950R1011 is a Motor Application Unit that performs a variety of automation tasks. It is used to control and monitor medium/low voltage induction motors. The unit is equipped with a DIN rail mounted processor and I/O hardware, allowing for maximum reliability and flexibility. It has on-board sensors to measure voltage, current, and speed, as well as an optional MODBUS port for communicating with other control systems. The unit also provides a range of safety and protection features, including over-torque, over-speed, and thermal overload, as well as earth fault protection and a 24 VDC power supply.