{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1HA10-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1HA10-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1HA10-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA10-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, 3RH2911-1HA10-ZW97, 1 NO front-mounted, screw-type terminals, for 3RT2 contactors and 3RH2 contactor relays, multi-unit packaging of 120.","salesMarkdown":"The Siemens 3RH2911-1HA10-ZW97 is a front-mounted auxiliary switch block for the SIRIUS 3RT2 contactor and 3RH2 contactor relay family. It adds one normally-open (1 NO) instantaneous contact to the front of the device, wired via screw-type terminals. The \"with 3RH2\" note on the order code flags that this variant is specifically packaged and kitted for the 3RH2 contactor relay line — same electrical stack, different logistics bundle. Snap-on mounting to the contactor front face — no tools, no panel mods. At 24 V it handles 6 A; at 230 V it also carries 6 A, but at 400 V it drops to 3 A, and at 690 V in AC-15 duty (solenoid/contactor coil loads) it's rated 1 A. DC switching follows a different derating curve: 10 A at 24 V DC, 4.7 A at 60 V, 3 A at 110 V, dropping to 0.26 A at 600 V DC. For DC control circuits, the voltage-specific rating is the binding constraint — don't size by the 10 A thermal number alone. Mechanical life is 10 million switching cycles typical, so this block will outlast most contactors it rides on. Screw-type terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with core end processing, or 2x (20 to 16 AWG) and 2x (18 to 14 AWG) for solid/stranded. The 43.7 mm depth, 36 mm width, and 37.5 mm height keep it within the contactor envelope — no extra DIN-rail space consumed.","metaTitle":"Siemens 3RH2911-1HA10-ZW97 Auxiliary Switch, 1 NO, Screw Ter","metaDescription":"Siemens SIRIUS auxiliary switch for 3RT2/3RH2 contactors. 1 NO contact, screw terminals, IP20 front. Active production, sourced to order. Get a quote.","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":"1","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/d30b7acfb99e3e4b5f44a2bba8b44cbb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=126585&mlfb=3RH2911-1HA10-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA10-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What does the 'with 3RH2' note on this order code mean?","answer":"The note indicates this variant is packaged and kitted for the 3RH2 contactor relay line — same electrical specifications as the standard 3RH2911-1HA10, but bundled in multi-unit packaging of 120 units for the 3RH2 family."},{"question":"Will 3RH2911-1HA10-ZW97 fit a panel designed for 3RH2122-1WB40?","answer":"The 3RH2911-1HA10-ZW97 is a front-mounted auxiliary switch block, while the 3RH2122-1WB40 is a complete contactor relay. They serve different roles — this switch mounts onto a 3RT2 or 3RH2 base unit, not as a standalone replacement. Check the panel layout for the base contactor before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1HA10-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/3RH2911-1HA10-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}}