Siemens AG 3RB3026-1QE Overload Relay

The Siemens 3RB3026-1QE0 overload relay provides electronic motor overload protection for 6–25 A loads in a Size S0 housing, designed to mount with Siemens contactors. This 3RB-series relay is intended for three-phase motor protection and supports main-circuit and auxiliary terminals via screw connections, with a built-in manual-automatic reset for flexible operation. It carries a Class 10E protection rating and is compatible with standard contactor mounting, making it a compact choice for motor protection in compact starter assemblies. The unit typically features a 1 NO/1 NC contact configuration and is suitable for motors up to about 11 kW (3P) in typical installations.