{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2HA22-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2HA22-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2HA22-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2HA22-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH2911-2HA22-ZW97, 2 NO + 2 NC, spring-loaded terminals, snap-on mounting for 3RT2 contactors and 3RH2 contactor relays, multi-unit packaging of 100.","salesMarkdown":"The Siemens 3RH2911-2HA22-ZW97 is a front-mounted auxiliary switch block for the SIRIUS family, designed to snap onto 3RT2 power contactors and 3RH2 contactor relays. It carries two normally-open and two normally-closed contacts, arranged as two independent contact paths per pole, all terminated through spring-loaded terminals that accept 2x (0.5 to 2.5 mm²) stranded or solid wire without ferrules. Rated for a maximum of 10 A, the switch block delivers 6 A at 24 V and 230/250 V, 3 A at 400 V, and 0.3 A at 220 V — the voltage-specific current limits reflect the contact gap and arc-quenching design for DC and AC loads. ## Mounting and wiring — panel fit Snap-on mounting to the contactor front face — no tools, no DIN rail. The block measures 36 mm wide by 41.5 mm high by 47.7 mm deep, adding about 48 mm to the contactor depth. Spring-loaded terminals accept 2x (0.5 to 1.5 mm²) with ferruled ends or 2x (0.5 to 2.5 mm²) without; AWG equivalents are 2x (20 to 14). Strip length is standard for cage-clamp style — 8 to 10 mm. ## Contact reliability and service life The 6 kV surge voltage resistance (rated) covers transient overvoltages common in industrial control panels.","metaTitle":"Siemens 3RH2911-2HA22-ZW97 Auxiliary Switch, 2NO+2NC, Spring","metaDescription":"Siemens SIRIUS auxiliary switch block 3RH2911-2HA22-ZW97, 2 NO + 2 NC contacts, spring-loaded terminals, snap-on for 3RT2/3RH2 contactors. Rated 10 A max, AC-15 1 A at 690 V. IP20","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/661f8a81ed64b9c8ef5ff6fb3110391b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=464040&mlfb=3RH2911-2HA22-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2HA22-ZW97/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH2911-2HA22-ZW97 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Submit an RFQ for current availability and pricing — stock levels and lead times are confirmed at quote time."},{"question":"What is 3RH2911-2HA22-ZW97's listed note (with 3RH2) on this component line?","answer":"The note indicates this auxiliary switch block is designed for use with 3RH2 contactor relays and 3RT2 power contactors from the SIRIUS family."},{"question":"What is 3RH2911-2HA22-ZW97's listed depth (47.7 mm) on this component line?","answer":"The depth is 47.7 mm, measured from the mounting face of the contactor forward. This adds roughly 48 mm to the overall depth of the contactor/relay assembly."},{"question":"Will 3RH2911-2HA22-ZW97 drop into a panel that was specified around 3RH2122-2AV60 without rewiring?","answer":"Both blocks mount to the same SIRIUS contactor front face, so the mechanical fit is identical. The 3RH2911-2HA22-ZW97 uses spring-loaded terminals while the 3RH2122-2AV60 uses screw terminals — wiring method differs, but the contact arrangement and footprint are compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2HA22-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/3RH2911-2HA22-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}}