The Siemens 3RH2131-1AP60 is a SIRIUS auxiliary contactor in size S00, carrying three normally open instantaneous contacts (3 NO) for switching control and signal circuits in panel builds. Rated for 10 A at 24 V AC/DC and 230 V AC, with a mechanical life of 30,000,000 operations typical, it is sized for high-cycle auxiliary duty alongside contactors or as a standalone interposing relay. Mounts via screw and snap-on onto 35 mm standard DIN rail; the 45 mm width and 73 mm depth fit the S00 footprint common across the SIRIUS 3RT2 contactor family.
Switching capacity across voltage bands
The 3RH2131-1AP60 carries a rated switching current that drops as voltage rises: 10 A at 24 V and 230 V, 4.7 A at 60 V, 3 A at 110 V and 400 V, 1.2 A at 220 V, 0.5 A at 440 V, 0.26 A at 600 V, and 1 A at 690 V.
Clearance requirements are 10 mm upwards, downwards, and forwards, 6 mm at the sides.