{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1HA22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1HA22","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1HA22","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1HA22, 2 NO + 2 NC, 10 A, screw-type terminals, snap-on mounting, IP20.","salesMarkdown":"It provides 2 normally open and 2 normally closed instantaneous contacts, rated for a maximum of 10 A, with screw-type terminals for wiring. The 10 A maximum rating governs the thermal current the contacts can carry continuously. For inductive loads at 24 V DC, the switching capacity drops to 6 A; at 110 V DC it's 1 A, and at 220 V DC it's 0.3 A. The AC-15 rating at 690 V is 1 A, which is the relevant figure for solenoid and contactor coil switching in a control circuit. These are the numbers that decide whether this block handles your specific load without welding contacts or exceeding thermal limits. That means it's suitable for both power switching and PLC-level signal feedback without nuisance failures. The block measures 36.5 mm wide, 41.5 mm deep, and 37.5 mm high — compact enough to fit on a contactor face or in a crowded DIN-rail enclosure. Insulation voltage is rated at 690 V AC with pollution degree 3, and surge voltage resistance is 6 kV — typical for industrial control circuits up to 480/690 V systems.","metaTitle":"Siemens 3RH1911-1HA22 SIRIUS Auxiliary Switch Block, 10 A","metaDescription":"Siemens 3RH1911-1HA22 SIRIUS auxiliary switch block, 2 NO + 2 NC, 10 A max, screw terminals. Phased out; successor 3RH2911-1HA22. 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","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":"$16.89","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=291915&mlfb=3RH1911-1HA22","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1HA22/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1911-1HA22 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the closest replacement for 3RH1911-1HA22?","answer":"The official preferred successor is 3RH2911-1HA22. It provides the same 2 NO + 2 NC contact arrangement but is physically larger (45 mm wide vs 36.5 mm) and uses a different mounting system, so panel rework is typically required."},{"question":"What compliance documentation is available for 3RH1911-1HA22?","answer":"The part carries standard Siemens SIRIUS documentation including RoHS and REACH compliance declarations. The insulation voltage rating of 690 V AC with pollution degree 3 and 6 kV surge voltage resistance supports IEC 60947-1 compliance for control circuit applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1HA22","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 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}}