The Siemens 3RH2140-1AP00-ZW96 is a SIRIUS auxiliary contactor, size S00, with four normally-open instantaneous contacts. It's designed for signal switching and control logic extension in motor starter and contactor assemblies, not for direct motor loads.
At 24 V DC the same contacts carry 10 A, dropping to 1.2 A at 220 V DC and 0.26 A at 600 V DC — so for DC switching at higher voltages, derate significantly. Mechanical life is listed at 30,000,000 operating cycles typical, which is high for a control relay — this part is built for frequent switching in automated lines, not occasional manual override.
The screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded wire — typical for control wiring up to 4 mm².