The Siemens 3RH1131-1AR10 is a SIRIUS auxiliary contactor in size S00, carrying three normally-open instantaneous contacts and no normally-closed or delayed contacts. It is rated for 10 A at AC-12 duty (resistive loads at 24 V), with switching capacity that drops to 1 A at 110 V, 0.27 A at 220 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V — so the voltage class of the control circuit directly governs which contact rating applies.
Shock resistance is 10 g / 5 ms and 5 g / 10 ms. The part is RoHS-compliant per the substance prohibition date of July 1, 2006. Surge voltage resistance is rated at 6 kV.