The Siemens 3RH1911-1NF11-0KS0-ZX95 is a solid-state compatible auxiliary switch in size S00, with a 1NO+1NC contact arrangement and 2-pole screw terminals. It conforms to DIN EN 50005 and is encapsulated, making it suitable for integration into contactor or relay assemblies where the auxiliary contacts must handle the low-energy switching profile of solid-state outputs without welding or excessive resistance.
Integration Note
The S00 footprint fits the standard DIN-rail mounting scheme used across Siemens SIRIUS contactor and relay ranges. The encapsulated design protects the switching chamber from dust and debris, which is relevant for panel environments where auxiliary contacts share space with power switching gear. Screw terminals accept solid or stranded conductors; torque to the manufacturer's specification for the 2-pole block.