{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1HA20-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1HA20-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1HA20-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA20-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, 3RH2911-1HA20-ZX95, front-mounted, 2 NO, screw-type terminals, 10 A max, for 3RT2 contactors and 3RH2 contactor relays.","salesMarkdown":"The 3RH2911-1HA20-ZX95: Rated for a maximum of 10 A, but the real selection driver is the switching capacity at your control voltage. At 24 V the contacts handle 10 A (resistive) and 6 A (AC-15 inductive); at 230 V that drops to 6 A resistive and 1 A inductive. For 400 V control circuits the inductive rating is 3 A. Snap-on mounting to the contactor or relay front — no DIN rail footprint of its own. The block measures 36 mm wide by 37.5 mm high by 43.7 mm deep, so it adds about 44 mm to the device depth. Wiring accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with ferrule, or 2x (20 to 16) and 2x (18 to 14) AWG.","metaTitle":"Siemens 3RH2911-1HA20-ZX95 SIRIUS Auxiliary Switch, 2 NO, 10","metaDescription":"Siemens SIRIUS auxiliary switch 3RH2911-1HA20-ZX95, 2 NO front-mounted, screw terminals, 10 A max, active production. Snap-on for 3RT2/3RH2. RFQ for BOM line.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RH2","Depth":"43.7 mm","Width":"36 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","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), 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":"https://cdn.aoctrl.com/406294d1b50f5a1b5c6217d73411fae2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=356621&mlfb=3RH2911-1HA20-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA20-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What does the 'with 3RH2' note mean?","answer":"The note indicates this auxiliary switch is designed for use with 3RH2 contactor relays, in addition to 3RT2 power contactors."},{"question":"What are the key switching ratings at different voltages?","answer":"Maximum 10 A. At 24 V: 10 A resistive, 6 A inductive. At 230 V: 6 A resistive, 1 A inductive. At 400 V: 3 A inductive. Insulation rated 690 V AC, pollution degree 3."},{"question":"Does this part snap onto a DIN rail?","answer":"No, it snap-mounts onto the front of a 3RT2 contactor or 3RH2 contactor relay. It does not occupy DIN rail space itself."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1HA20-ZX95","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/3RH2911-1HA20-ZX95 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}}