{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-2NF02","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-2NF02","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-2NF02","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-2NF02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-2NF02, 2 NC contacts, spring-loaded terminals, snap-on mounting for size S00 contactors, IP20, 690 V insulation, 5 million mechanical cycles.","salesMarkdown":"The Siemens SIRIUS 3RH1911-2NF02 is a solid-state compatible auxiliary switch block with 2 NC contacts, designed for snap-on mounting onto size S00 contactor relays and power contactors. It uses spring-loaded terminals for the auxiliary and control circuit, accepting 2x (0.5... 1.5 mm²) with core-end processing or 2x (0.5... 2.5 mm²) without. The front face carries IP20 protection, and the insulation voltage at AC with pollution degree 3 is rated 690 V. Rated current is 0.3 A at both 24 V and 60 V, and surge voltage resistance is 6 kV. Mechanical service life is 5 000 000 switching cycles typical, with contact reliability of 1 faulty switching per 100 million operations at 17 V, 1 mA. For volume or scheduled buys, the successor 3RH2911-2NF02 is the recommended path to avoid requalification churn. The 36.5 mm width and 46 mm depth fit the standard S00 footprint, so it does not increase the panel space beyond the contactor itself. Spring terminals reduce wiring time — no screw torque verification needed.","metaTitle":"Siemens 3RH1911-2NF02 SIRIUS Auxiliary Switch, 2 NC, Spring","metaDescription":"Siemens SIRIUS 3RH1911-2NF02 auxiliary switch block, 2 NC contacts, spring-loaded terminals, IP20, snap-on for S00 contactors. Phased out; successor 3RH2911-2NF02. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Note":"with 3RH1","Depth":"46 mm","Width":"36.5 mm","Height":"37.5 mm","at 24 V":"0.3 A","at 60 V":"0.3 A","Mounting type":"snap-on mounting","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Product brand name":"SIRIUS","Suitability for use":"Contactor relay and power contactor","Instantaneous Contact":"0","With Core End Processing":"2x (0.5 ... 1.5 mm²)","Without Core End Processing":"2x (0.5 ... 2.5 mm²)","Protection class IP on the front":"IP20","Surge voltage resistance rated value":"6 kV","at AWG conductors for auxiliary contacts":"2x (20 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Mechanical service life (switching cycles) typical":"5 000 000","Insulation voltage with degree of pollution 3 at AC rated value":"690 V","Type of electrical connection for auxiliary and control current circuit":"spring-loaded terminals"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=162480&mlfb=3RH1911-2NF02","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-2NF02/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RH1911-2NF02?","answer":"The preferred successor is Siemens 3RH2911-2NF02. It retains the same 2 NC contact arrangement, spring-loaded terminals, and S00 snap-on mounting."},{"question":"Where can I buy 3RH1911-2NF02?","answer":"This phased-out part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What are the key ratings of 3RH1911-2NF02?","answer":"Rated current 0.3 A at 24 V and 60 V, insulation voltage 690 V AC (pollution degree 3), surge voltage resistance 6 kV, mechanical life 5 000 000 cycles, contact reliability 1 fault per 100 million operations at 17 V, 1 mA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-2NF02","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/3RH1911-2NF02 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}