The Siemens 3RH2122-1AK60 is a SIRIUS auxiliary contactor in size S00, carrying 2 instantaneous normally-open contacts. Rated 10 A at both 24 V and 230 V, it handles typical control-circuit loads across common voltage levels.
The 2 NO contacts are instantaneous — no delay, no timing function — so this contactor is for on/off switching of control signals, not timed sequences. The 10 A rating at 24 V and 230 V covers most PLC output, relay coil, and indicator lamp loads; at 60 V it's still 4.7 A, and at 400 V it's 3 A, so it can handle higher-voltage control circuits in the same panel. Electrical endurance depends on the switched current; the arcing time of 10–15 ms is normal for this contactor class. Environmental range: operates -25 to +60 °C, stores -55 to +80 °C.
Mounting and spacing
Size S00 means a compact footprint: 45 mm wide, 57.5 mm high, 73 mm deep. Terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded wire — covers standard control wiring sizes.
RoHS compliance is established per substance prohibition date of October 1, 2009, covering the standard EU restricted substances.