{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1HA11-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1HA11-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1HA11-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA11-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, 1 NO + 1 NC, 10 A maximum, screw-type terminals, snap-on mounting for 3RT2 contactors and 3RH2 contactor relays, multi-unit packaging of 60.","salesMarkdown":"## Switching ratings by voltage The 3RH2911-1HA11-ZW98: The auxiliary contacts carry a maximum of 10 A. Rated operational current varies by voltage: 6 A at 24 V, 6 A at 125 V, 6 A at 230 V, 6 A at 250 V, 3 A at 400 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. For AC-15 duty at 690 V the rating is 1 A. The AC-15 rated operational current values at 24 V (10 A), 60 V (4.7 A), 110 V (3 A), 220 V (1.2 A), 440 V (0.5 A), and 600 V (0.26 A) define the inductive load switching capability for control circuits. ## Mechanical and environmental ratings Mechanical service life is 10 million switching cycles typical. Front protection class is IP20. Snap-on mounting to the contactor or contactor relay front. Accepts 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²) with core end processing, or 2x (20 to 16) and 2x (18 to 14) AWG. Dimensions: width 36 mm, depth 43.7 mm, height 37.5 mm.","metaTitle":"Siemens 3RH2911-1HA11-ZW98 Auxiliary Switch, 1NO+1NC, 10A, S","metaDescription":"Siemens SIRIUS auxiliary switch 3RH2911-1HA11-ZW98, 1 NO + 1 NC, 10 A max, screw terminals, snap-on for 3RT2/3RH2 contactors. Active production. Quoted to order.","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=487999&mlfb=3RH2911-1HA11-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1HA11-ZW98/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3RH2911-1HA11-ZW98 and how is it quoted for volume purchases?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quotation."},{"question":"What is the closest functional alternative to 3RH2911-1HA11-ZW98?","answer":"The 3RH2122-1WB40 is a peer auxiliary contact block in the same SIRIUS family, but it has a different contact configuration and terminal arrangement. The 3RH2911-1HA11-ZW98 is designed specifically for front mounting on 3RT2/3RH2 devices with a 1 NO + 1 NC pattern and screw terminals. Verify wiring before substituting."},{"question":"What is the listed note 'with 3RH2' on this component line?","answer":"The note indicates the auxiliary switch is designed for use with 3RH2 contactor relays, as well as 3RT2 contactors."},{"question":"What is the depth of 3RH2911-1HA11-ZW98?","answer":"The depth is 43.7 mm."},{"question":"Will 3RH2911-1HA11-ZW98 drop into a panel specified around 3RH2122-1WB40 without rewiring?","answer":"Both are SIRIUS auxiliary contact blocks for the same contactor platform, so the mechanical fit on the contactor front is the same. However, the contact arrangement and terminal layout differ — the 3RH2911-1HA11-ZW98 has 1 NO + 1 NC with screw terminals, while the 3RH2122-1WB40 may have a different contact set. Verify the wiring diagram matches before installing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1HA11-ZW98","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/3RH2911-1HA11-ZW98 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}}