The Siemens 3RH1140-2AP00-ZX95 is a SIRIUS auxiliary contactor, Size S00, with 4 normally-open instantaneous contacts. It switches control signals in a panel — think PLC outputs driving contactor coils, or status feedback from a motor starter back to the controller. The 10 A rating at 24 V covers most 24 VDC control circuits; at 230 V it's still good for 6 A, so it handles mixed-voltage aux circuits without a separate interposing relay.
Screw and snap-on mounting onto DIN rail. The 45 mm width and 73 mm depth fit a standard S00 footprint; rotate it ±180° on a vertical surface or tilt it ±22.5° forward/backward.
Four N/O contacts, no N/C, no delayed or make-before-break — it's a straight-up signal repeater. The 10 A at 24 V is the thermal current; at 110 V it's 1 A, at 230 V it's 6 A, at 400 V it's 3 A, and at 690 V it's 1 A.
Shock resistance is 10g for 5 ms and 5g for 10 ms. The lifecycle stage is current.
Sourcing reality
This is a current-production part in the SIRIUS line, not an EOL orphan. If you're filling a BOM line or replacing a failed unit in a live panel, send the RFQ with quantity and target delivery window.