{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1HA22-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1HA22-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1HA22-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1HA22-ZX95, 2 NO + 2 NC, screw terminal, 10 A maximum, snap-on mounting, IP20 front protection.","salesMarkdown":"Rated for a maximum continuous current of 10 A, the contacts carry switching loads across a wide voltage range — 6 A at 24 V, 6 A at 125 V, 6 A at 230 V, and 3 A at 400 V — making it suitable for both control-circuit and light power-circuit duty in a panel. The block uses screw-type terminals accepting 2x (0.5…1.5 mm²) or 2x (0.75…2.5 mm²) conductors with core-end processing, and the front face carries an IP20 protection class rating. This part is a phased-out product — the official successor is the SIRIUS 3RH2 series, which offers a modernized footprint and updated ratings. Snap-on mounting means the block clips directly onto the contactor body without tools — no DIN-rail footprint required, which saves panel width but ties the block to the host contactor's form factor. Surge voltage resistance rated at 6 kV and insulation voltage of 690 V with pollution degree 3 confirm the block can live in an industrial panel environment without flashover concerns. Dimensions are 36.5 mm wide, 37.5 mm high, and 41.5 mm deep — a compact block that adds minimal overhang to the contactor it mounts on.","metaTitle":"Siemens 3RH1911-1HA22-ZX95 Auxiliary Switch Block, 10 A","metaDescription":"Siemens SIRIUS auxiliary switch block 3RH1911-1HA22-ZX95, 2 NO + 2 NC, 10 A max, snap-on mount, IP20. Phased out; successor 3RH2 series. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Note":"with 3RH1","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","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","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":"2","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=438346&mlfb=3RH1911-1HA22-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RH1911-1HA22-ZX95?","answer":"The official successor is the SIRIUS 3RH2 series — for example, the 3RH2122-1WB40 is a coupling relay with a similar 2 NO + 2 NC contact arrangement but a different mounting method (screw and snap-on onto 35 mm DIN rail) and larger dimensions (73 mm deep, 45 mm wide)."},{"question":"Will 3RH1911-1HA22-ZX95 drop into a panel specified for 3RH2122-1WB40?","answer":"Not without rewiring or re-mounting — the 3RH1911 snap-ons directly to a contactor body, while the 3RH2122 mounts on DIN rail and has a different footprint (73 mm vs 41.5 mm depth)."},{"question":"What does the note 'with 3RH1' mean?","answer":"It indicates this auxiliary switch block is designed to mount on 3RH1 contactor relays and 3RT1 power contactors in the SIRIUS family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1HA22-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/3RH1911-1HA22-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}}