{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2DA11-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2DA11-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2DA11-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2DA11-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, 3RH2911-2DA11-ZX95, 1 NO + 0 NC, snap-on for size S00 contactors, 10 A rated at 24 V, IP20 front, 66 mm depth.","salesMarkdown":"It snaps onto the contactor side without tools, occupying a 10 mm wide slot on the DIN-rail assembly. The 6 kV surge voltage resistance (impulse withstand) means it holds up against switching transients on industrial mains without welding or tracking. The snap-on fastening method lets a panel builder add or swap this block without disturbing the main contactor wiring, which matters when retrofitting auxiliary contacts onto an existing S00 starter. ## Contact reliability and mirror contact This auxiliary switch carries a mirror contact per IEC 60947-4-1 when paired with a 3RT2 contactor. That means the NO contact mechanically mirrors the main contactor's state — if the main contacts weld, the mirror contact stays open, giving the safety circuit a reliable feedback path. Terminals accept 2x (0.5... 2.5 mm²) solid or stranded, or 2x (20... 14 AWG). Finely stranded wire with core-end processing takes 2x (0.5... 1.5 mm²). ## Environmental limits Operating temperature range -25... +60 °C; storage range -55... +80 °C. Substance prohibitance date 10/01/2009.","metaTitle":"Siemens 3RH2911-2DA11-ZX95 SIRIUS Auxiliary Switch, 10 A","metaDescription":"Siemens SIRIUS 3RH2911-2DA11-ZX95 auxiliary switch, 10 A rated at 24 V, snap-on for S00 contactors. IP20, 6 kV surge, mirror contact per IEC 60947-4-1. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"66 mm","Width":"10 mm","title":"3RH2911-2DA11-ZX95","Height":"64.8 mm","at 24 V":"6 A","at 48 V":"2 A","at 60 V":"2 A","at 110 V":"1 A","at 125 V":"0.9 A","at 220 V":"0.3 A","at 230 V":"6 A","at 250 V":"0.3 A","at 400 V":"3 A","description":"auxiliary switch, lateral, 1 NO + 1 NC, on the left: 41/42, 53/54, on the right: 21/22, 33/34, current path: 1 NC, 1 NO, spring-loaded terminal, for contactors 3RT2.1, reusable packaging, pack = 321 units","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"snap-on mounting","Product Category":"Auxiliary switch","Lagging Switching":"0","Size Of Contactor":"S00","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"auxiliary switch","Suitability For Use":"Contactor relay and power contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 440 V rated value":"0.5 A","at 600 V rated value":"0.26 A","Design Of The Product":"first laterally mountable","Instantaneous Contact":"1","Substance Prohibitance (Date)":"10/01/2009","protection class IP on the front":"IP20","Surge Voltage Resistance Rated Value":"6 kV","for AWG cables for auxiliary contacts":"2x (20 ... 14)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes; with 3RT2","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","operational current at AC-15 at 690 V rated value":"1 A","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","operational current of auxiliary contacts at AC-12 maximum":"10 A","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V","number of CO contacts of auxiliary contacts instantaneous contact":"0","AWG number as coded connectable conductor cross section for auxiliary contacts":"20 ... 14"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/03b88f3060d9cd2d6b1e1e7e0ca2cf53.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=665173&mlfb=3RH2911-2DA11-ZX95"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2DA11-ZX95","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RH2911-2DA11-ZX95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}