{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2XA22-0MA0-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2XA22-0MA0-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2XA22-0MA0-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2XA22-0MA0-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 2 NO + 2 NC, spring-loaded terminals, 10 A, snap-on, for 3RT2/3RH2 contactors.","salesMarkdown":"The Siemens 3RH2911-2XA22-0MA0-ZW97 is a front-mounted auxiliary switch block in the SIRIUS family, designed for use with 3RT2 contactors and 3RH2 contactor relays. It provides 2 normally-open and 2 normally-closed contacts, wired as separate current paths (53/54, 61/62, 71/72, 83/84), with spring-loaded terminals accepting 2x (0.5...1.5 mm²) with ferrules or 2x (0.5...2.5 mm²) solid. Rated for 10 A maximum, with an AC-15 rating of 1 A at 690 V — sufficient for pilot-duty control circuits in motor starters and relay logic panels. Snap-on mounting onto the contactor or relay front — no tools needed. The block adds 36 mm width, 47.7 mm depth, and 41.5 mm height to the assembly, so check your DIN-rail fill and enclosure depth before committing. IP20 on the front face is standard for enclosed panels; not rated for washdown environments. ## Switching performance and contact reliability Mechanical service life of 10 million switching cycles, with contact reliability specified at 1 faulty switching per 100 million operations at 17 V, 1 mA — this matters for PLC-level signals where dry switching can cause oxide buildup. Current production — no end-of-life notice. Standard catalog item from the SIRIUS program, supplied in multi-unit packaging of 100 pieces per pack.","metaTitle":"Siemens 3RH2911-2XA22-0MA0-ZW97 auxiliary switch, 2 NO + 2 N","metaDescription":"Siemens SIRIUS auxiliary switch block for 3RT2/3RH2 contactors. 2 NO + 2 NC, spring-loaded terminals, 10 A max, IP20 front. Snap-on mount. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RH2","Depth":"47.7 mm","Width":"36 mm","Height":"41.5 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","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"snap-on mounting","Lagging Switching":"0","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)","Without Core End Processing":"2x (0.5 ... 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 ... 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":"spring-loaded 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":"https://cdn.aoctrl.com/9b29f045a9e8c146e37a394ce18d3b8d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=155676&mlfb=3RH2911-2XA22-0MA0-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2XA22-0MA0-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does the spring-loaded terminal accept?","answer":"Without core-end processing (solid/stranded) it accepts 2x (0.5...2.5 mm²); with ferrules, 2x (0.5...1.5 mm²). AWG equivalent is 2x (20...14)."},{"question":"What is the operating temperature range?","answer":"During operation: -25 °C to +60 °C. Storage range is -55 °C to +80 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2XA22-0MA0-ZW97","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/3RH2911-2XA22-0MA0-ZW97 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}}