snippet: Siemens Sirius - 3RU1116-1AB0 Adjustable, Thermal Overload Relays The Siemens Sirius 3RU1116-1AB0 is an IEC rated thermal overload relay used for the protection of three-phase motors. SIRIUS overload relays reliably protect loads against overload, phase asymmetry and phase failure. Class 10 Size S00 Amp Range: 1.1