The Siemens 3RH2140-2AP00 is a SIRIUS auxiliary contactor in size S00, carrying four normally open instantaneous contacts. Its switching capability is defined by the voltage and current on the contacts: at 24 V it is rated for 10 A, at 230 V for 10 A, and at 400 V for 3 A. These ratings are for AC operation; the contacts handle up to 690 V at 1 A. The four contacts are all instantaneous — no timed or delayed functions on this variant.
The S00 footprint is compact at 45 mm wide, 70 mm high, and 73 mm deep, so it fits in tight panel layouts. Clearance requirements: 10 mm above, 10 mm below, 10 mm forward, 6 mm to the side.
Environmental and lifecycle
Relative humidity minimum is 10%. The part complies with RoHS substance prohibitions dated 10/01/2009.