{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1GA22","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1GA22","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1GA22","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1GA22, 2 NO + 2 NC, screw terminals, 10 A max, snap-on mounting, 41.5 mm depth.","salesMarkdown":"The Siemens SIRIUS 3RH1911-1GA22 is a 4-pole auxiliary switch block with 2 normally-open and 2 normally-closed contacts, arranged per EN 50011 (identification 22 E). It snaps onto a contactor relay or power contactor in the SIRIUS family, adding feedback or interlock contacts without extra wiring space. The screw-type terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with core-end processing, or the AWG equivalents. Contact ratings are given per voltage: 10 A at 24 V, 6 A at 230/250 V, 3 A at 400 V, and derated further at higher voltages. The mechanical service life is 10 million switching cycles typical, with contact reliability of 1 faulty switching per 100 million operations at 17 V, 1 mA — a solid figure for PLC-level signal circuits. Snap-on mounting onto the contactor relay or power contactor — no DIN rail required for the block itself; it clips directly onto the base device. Dimensions are compact: 36.5 mm wide, 37.5 mm high, 41.5 mm deep.","metaTitle":"Siemens 3RH1911-1GA22 SIRIUS Auxiliary Switch Block, 10 A, 2","metaDescription":"Siemens SIRIUS 3RH1911-1GA22 auxiliary switch block, 10 A max, 2 NO + 2 NC, screw terminals, snap-on mounting. Phased out; successor 3RH2911-1GA22. 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":"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=166853&mlfb=3RH1911-1GA22","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1GA22/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RH1911-1GA22?","answer":"The official successor is the SIRIUS 3RH2911-1GA22. It maintains the 2 NO + 2 NC arrangement, screw-type terminals, and snap-on mounting for the same contactor relay family."},{"question":"What are the key contact ratings for 3RH1911-1GA22?","answer":"Maximum 10 A. Specific ratings: 10 A at 24 V, 6 A at 24 V (second entry), 6 A at 60 V, 1 A at 110 V, 6 A at 125 V, 0.3 A at 220 V, 6 A at 230 V, 6 A at 250 V, 3 A at 400 V. Also rated in AC-15 at 690 V for 1 A."},{"question":"Where can I buy 3RH1911-1GA22?","answer":"This phased-out part is sourced through independent distribution channels. Submit an RFQ for current pricing and availability — confirmed at quote time, not from a live stock counter."},{"question":"Will 3RH1911-1GA22 fit a panel designed for 3RH2122-1WB40?","answer":"No. The 3RH2122-1WB40 is a coupling relay with a different form factor (45 mm wide, 73 mm deep) and mounts on a 35 mm DIN rail via screw and snap-on. The 3RH1911-1GA22 is an auxiliary switch block that clips directly onto a contactor relay — it does not mount to a DIN rail independently. The two are not mechanically interchangeable without changing the base contactor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1GA22","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/3RH1911-1GA22 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}}