{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1HA22-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1HA22-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1HA22-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1HA22-ZW98, 2 NO + 2 NC, 10 A maximum, screw-type terminals, snap-on mounting, IP20 front.","salesMarkdown":"The 3RH1911-1HA22-ZW98 is a phased-out product. The official successor is the SIRIUS 3RH2 series. This auxiliary switch block carries a maximum contact rating of 10 A, but the real-world switching capacity depends on the voltage and duty. At 24 V it handles 6 A; at 230 V it also rates 6 A; at 400 V it drops to 3 A. The AC-15 rating at 690 V is 1 A — that's the inductive load curve for contactor coils and solenoid valves at higher line voltages. For DC switching, the 24 V rated value is 10 A, falling to 0.26 A at 600 V. The mechanical service life is 10,000,000 switching cycles typical, with contact reliability of 1 faulty switching per 100 million at 17 V, 1 mA — a solid figure for low-level signal circuits. The block snaps onto SIRIUS contactors and contactor relays (size S00) via the standard EN 50012 profile. Screw-type 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 is IP20, so it's suited for enclosed panels where no washdown or dust ingress reaches the terminals. ## Integration into a SIRIUS contactor assembly Snap-on mounting onto the contactor front face — no tools, no DIN rail. The 36.5 mm width and 41.5 mm depth keep the assembly within the S00 footprint. The SIRIUS 3RH1 series carries CE marking and is designed to IEC/EN 60947-5-1. RoHS and REACH compliance documentation is available from Siemens on request.","metaTitle":"Siemens 3RH1911-1HA22-ZW98 Auxiliary Switch Block, 10 A, SIR","metaDescription":"Siemens SIRIUS 3RH1911-1HA22-ZW98 auxiliary switch block. 2 NO + 2 NC, 10 A max, screw terminals, snap-on mounting. Phased-out; successor is SIRIUS 3RH2. Sourced to order against R","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=275212&mlfb=3RH1911-1HA22-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RH1911-1HA22-ZW98?","answer":"The official Siemens successor is the SIRIUS 3RH2 series (e.g., 3RH2122-1WB40). The 3RH2 blocks have a different footprint — 45 mm wide and 73 mm deep versus the 3RH1's 36.5 mm by 41.5 mm — and mount via screw and snap-on onto 35 mm DIN rail rather than direct snap-on to the contactor front. Panel rework is required for a drop-in replacement."},{"question":"What is the maximum current rating of 3RH1911-1HA22-ZW98?","answer":"The maximum contact rating is 10 A, but the actual switching capacity depends on voltage and duty. At 24 V AC it handles 6 A; at 230 V AC it also rates 6 A; at 400 V AC it drops to 3 A. For DC, the 24 V rated value is 10 A, falling to 0.26 A at 600 V."},{"question":"Where can I buy 3RH1911-1HA22-ZW98?","answer":"This phased-out part is sourced through independent industrial automation distributors. Submit an RFQ for current pricing and availability — confirmed at quote time against the specific quantity and delivery window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1HA22-ZW98","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-ZW98 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}}