Siemens 3UA54002A Overload Relay 10-16A 600V 10A

Siemens 3UA54002A is a thermal overload relay that mounts to a compatible Siemens contactor to provide motor overload protection in a typical motor starter assembly. This model covers a current range of 10–16 A, with a nominal load current rating of 10 A and a maximum operating voltage of 600 V, making it suitable for controlling motors in industrial panels. The 3UA54002A is listed as an alternate identifier for related parts such as 3UA5400-2A and 5945-01-341-7090, reflecting its place in Siemens’ 3UA overload relay family. Used in motor starter circuits to monitor current and trigger a protective trip when overheating or overload conditions occur, it supports reliable protection in applications like conveyors, pumps, and fans where compact, integrated motor protection is required. In Siemens Industry Mall catalogs, the 3UA5400-2A/3UA54002A variants are recognized as part of a modular protection approach that pairs with Siemens contactors to form a compact, dependable motor-protection solution.