Siemens 3UA6000-3J Three Phase Overload Relay

Siemens 3UA6000-3J is a three-pole thermal overload relay rated for up to 600 V AC, designed to protect three-phase motors by sensing current and initiating a trip when overload occurs. It covers a current range of 110 to 155 A, enabling use with mid-to-high-power motors in industrial motor control panels. Part of the Siemens 3UA6000 family, the 3J variant is intended to be paired with compatible Siemens contactors and starter assemblies to provide coordinated overload protection. Common applications include pumps, fans, conveyors, compressors, and other three-phase equipment where reliable overload protection and predictable trip behavior are required.