Siemens' Sirius 3RU2126-4EB0 is a size S0 thermal overload relay for three-phase motors, providing current-dependent protection in the 27 to 32 A range. It is rated for up to 690 V AC and designed for mounting on compatible 3RT202-series contactors, with screw terminals for both main and auxiliary circuits and support for manual or automatic reset. This 3RU2 family overload relay delivers Class 10 protection, making it a robust choice for motor protection in industrial drives prone to overload and phase issues.
