{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1FB22-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1FB22-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1FB22-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1FB22-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1FB22-ZX95, 2 NO + 2 NC, 10 A maximum, screw-type terminals, snap-on mounting, IP20 front.","salesMarkdown":"The 3RH1911-1FB22-ZX95: The contacts are rated for AC-15 duty at 690 V at 1 A, and the surge voltage resistance is 6 kV, so this block is suitable for switching control-circuit loads like contactor coils and pilot devices in industrial panels. The 10 A maximum rating applies across the block; individual contact ratings vary by voltage: 6 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, and 3 A at 400 V. For DC switching, the ratings are 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 0.5 A at 440 V, and 0.26 A at 600 V. ## Lifecycle reality: phased out, successor available The 3RH1911-1FB22-ZX95 is a phased-out product. Siemens lists the SIRIUS 3RH2 series as the direct successor. ## Mounting and integration details The block snaps onto the front of SIRIUS contactor relays and power contactors (size S00). Dimensions are 41.5 mm deep, 36.5 mm wide, and 37.5 mm high. The screw terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) conductors with core end processing, or 2x (20 to 16) or 2x (18 to 14) AWG. The front face is rated IP20, so it is suitable for enclosed panel use.","metaTitle":"Siemens 3RH1911-1FB22-ZX95 Auxiliary Switch Block, 10 A, SIR","metaDescription":"Siemens SIRIUS 3RH1911-1FB22-ZX95 auxiliary switch block, 2 NO + 2 NC, 10 A max, screw terminals, snap-on mounting. Phased out; successor is 3RH2. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"41.5 mm","Width":"36.5 mm","Height":"37.5 mm","Maximum":"10 A","at 24 V":"6 A","at 60 V":"2 A","at 110 V":"1 A","at 125 V":"6 A","at 220 V":"0.3 A","at 230 V":"6 A","at 250 V":"6 A","at 400 V":"3 A","Mounting type":"snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"1","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Lagging Switching":"1","Product brand name":"SIRIUS","Contact reliability":"one incorrect switching operation of 100 million switching operations (17 V, 5 mA)","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","Instantaneous Contact":"1","With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at AC-15 at 690 V rated value":"1 A","Protection class IP on the front":"IP20","Surge voltage resistance rated value":"6 kV","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Mechanical service life (switching cycles) typical":"10 000 000","Insulation voltage with degree of pollution 3 rated value":"690 V","Type of electrical connection for auxiliary and control current circuit":"screw-type terminals"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=494597&mlfb=3RH1911-1FB22-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1FB22-ZX95/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1FB22-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/3RH1911-1FB22-ZX95 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}}