The Siemens 3RH1122-2AK60-ZW97 is a SIRIUS auxiliary contactor — size S00 frame — with 4 normally-open instantaneous contacts and no delayed or lagging switching. It's the part that mirrors the main contactor's position in a reversing or star-delta circuit, or that picks up a PLC input to confirm the contactor pulled in. Rated for 10 A at 24 V, 6 A at 230 V, and 1 A at 690 V, so it handles the control-circuit loads you'd expect — pilot lights, PLC inputs, small relays — not motor power. The 6 kV rated surge voltage resistance puts it in the same impulse-withstand class as the contactor it follows.
Solid wire from 0.25 to 2.5 mm² fits the terminals — that's the standard range for control wiring up to 14 AWG.
RoHS compliance dated to July 1, 2006 — the original EU RoHS deadline — so it's been clean for nearly two decades. No UL or CSA marks are listed in the spec record, but the SIRIUS family typically carries them; verify the nameplate marking if your panel requires a specific agency approval.
Contact reliability and environment
If you're switching low-energy DC loads, this contactor won't miss a pulse. Shock resistance of 10g for 5 ms and 5g for 10 ms covers the vibration you'd see on a conveyor or pump skid.