{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1AA01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1AA01","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1AA01","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1AA01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 1 NC, screw terminals, size S00, snap-on mounting, 10 A thermal current, IP20 front protection.","salesMarkdown":"It uses screw-type terminals and is rated for a maximum thermal current of 10 A, with specific contact ratings across AC and DC voltages. ## Contact Ratings and Application This block carries a rated operational current of 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V under AC-15 duty, which covers switching of electromagnetic loads like contactor coils. For DC switching, the ratings are 10 A at 24 V, 4.7 A at 60 V, and 0.26 A at 600 V. The block snaps onto the front of S00 contactors and contactor relays. Dimensions are 28.5 mm wide, 37.5 mm high, and 41.5 mm deep. Wiring accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with core-end processing, or 2x (20 to 16) and 2x (18 to 14) AWG. ## Environmental and Electrical Endurance","metaTitle":"Siemens 3RH1911-1AA01 SIRIUS Auxiliary Switch Block, 1 NC","metaDescription":"Siemens SIRIUS 3RH1911-1AA01 auxiliary switch block, 1 NC, snap-on mount, screw terminals. Phased-out; successor is 3RH2911-1AA01. Sourced 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":"28.5 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":"0","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=31669&mlfb=3RH1911-1AA01","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1AA01/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RH1911-1AA01?","answer":"The preferred successor is the Siemens SIRIUS 3RH2911-1AA01."},{"question":"Where can I buy the 3RH1911-1AA01?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of the 3RH1911-1AA01?","answer":"It has a maximum thermal current of 10 A, with AC-15 ratings of 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. DC ratings include 10 A at 24 V and 0.26 A at 600 V."},{"question":"What is the 3RH1911-1AA01 used for?","answer":"It is an auxiliary switch block with one NC contact, used with SIRIUS S00 contactor relays and power contactors for signaling or control logic."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1AA01","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/3RH1911-1AA01 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}}