{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1HA22-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1HA22-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1HA22-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1HA22-ZW96, 2 NO + 2 NC, screw terminals, 10 A max, snap-on mounting, IP20 front.","salesMarkdown":"The Siemens SIRIUS 3RH1911-1HA22-ZW96 is a 4-pole auxiliary switch block (2 NO + 2 NC) with screw-type terminals, designed for use with contactor relays and power contactors in the SIRIUS family. It snaps onto the contactor or relay without tools, adding auxiliary contacts for status feedback, interlocking, or control logic. Rated for a maximum of 10 A, the switching capacity varies by voltage and duty: at 24 V it handles 6 A (AC-15/DC-13), at 230 V it handles 6 A, and at 400 V it handles 3 A. Mechanical service life is typical 10 million switching cycles, and contact reliability is rated at 1 faulty switching per 100 million operations at 17 V, 1 mA — suitable for PLC-level signal switching where low-level contact wetting is a concern. Snap-on mounting onto the contactor relay or power contactor — no DIN rail required, no tools. The block adds 41.5 mm depth, 36.5 mm width, and 37.5 mm height to the assembly. Screw terminals accept 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²) with core-end processing, or 2x (20... 16) and 2x (18... 14) AWG. Front protection class is IP20 — suitable for enclosed panels.","metaTitle":"Siemens 3RH1911-1HA22-ZW96 SIRIUS Auxiliary Switch Block, 2N","metaDescription":"Siemens SIRIUS 3RH1911-1HA22-ZW96 auxiliary switch block, 2NO+2NC contacts, rated 10A, snap-on mounting, IP20 front. Phased-out; successor is SIRIUS 3RH2. Available to order.","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","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"snap-on mounting","Product Brand Name":"SIRIUS","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 cables 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","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V"}},"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=366486&mlfb=3RH1911-1HA22-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22-ZW96/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1911-1HA22-ZW96?","answer":"It is available through independent distribution channels. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the closest functional second-source for 3RH1911-1HA22-ZW96?","answer":"The official Siemens successor is the SIRIUS 3RH2 series (e.g., 3RH2122-1WB40). The 3RH2 blocks are physically larger (73 mm depth, 45 mm width vs. 41.5 mm and 36.5 mm) and mount via screw and snap-on onto 35 mm DIN rail, so a panel originally built around the 3RH1911 will need rewiring and possibly a different mounting arrangement to accept the 3RH2."},{"question":"What is 3RH1911-1HA22-ZW96's listed depth?","answer":"41.5 mm."},{"question":"Will 3RH1911-1HA22-ZW96 drop into a panel specified around 3RH2122-1WB40 without rewiring?","answer":"No. The 3RH2122-1WB40 is physically larger (73 mm depth, 45 mm width) and mounts on DIN rail; the 3RH1911 is smaller (41.5 mm depth, 36.5 mm width) and snaps directly onto the contactor. The terminal layout and wiring will not align without changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1HA22-ZW96","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-ZW96 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}}