Siemens 3UA5500-1G is a 3-pole solid-state overload relay with an adjustable current setting of 4 to 6.3 A, designed to protect 3‑phase motors in Siemens World Series motor starter circuits. This overload relay is intended for use with Siemens World Series contactors and starter models such as 3TF34, 3TF35, 3TF44, and 3TF45, providing current-based protection for the connected motor. The device trips when the motor current exceeds the preset threshold, helping prevent motor damage from overload conditions and enabling integration into standard Siemens motor protection schemes.
