The Siemens 3RH2422-1AP00 is a SIRIUS auxiliary contactor in frame size S00, providing 2 normally open instantaneous contacts for switching control circuits. The 10 A thermal current rating at 24 V and 230 V means the contact set carries the same continuous current regardless of control voltage — the voltage derating only governs the breaking capacity at higher potentials.
Environmental and compliance specs
Degree of pollution 3 per IEC 60947-1 means the contactor is rated for conductive pollution environments typical of industrial control panels — not clean-room or sealed electronics cabinets. Mechanical endurance is 5,000,000 operating cycles typical — this is the contactor mechanism life before spring fatigue, not the electrical life under load (which is lower and depends on switching current).