{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1GA22-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1GA22-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1GA22-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA22-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor relay auxiliary switch, 2 NO + 2 NC, 10 A, screw terminals, snap-on mounting, IP20, 43.7 mm depth.","salesMarkdown":"## Auxiliary switch block for SIRIUS contactor relays The Siemens 3RH2911-1GA22-ZW97 is a front-mounted auxiliary switch block for the SIRIUS contactor relay family, delivering 2 normally-open and 2 normally-closed contacts in a physically coded housing that mates only with 3RH2140 and 3RH2440 contactor relays per EN 50011. Rated at 10 A, it carries 10 A at 24 V and derates to 6 A at 230 V or 250 V, with AC-15 switching capability at 690 V rated 1 A — so it handles pilot-duty loads like PLC inputs and relay coils across a 24 V to 690 V control range. ## Contact reliability and switching life Insulation voltage is 690 V at pollution degree 3, surge voltage resistance 6 kV, and front protection IP20 — adequate for enclosed control panels where the switch is behind a door. Screw-type terminals accept 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²) with core end processing, or AWG 2x (20–16) and 2x (18–14). The switch block includes two instantaneous contacts (the 2 NO + 2 NC set) with no leading or lagging contact — all four poles switch simultaneously, so it suits straightforward status feedback or interlocking without timing tricks.","metaTitle":"Siemens 3RH2911-1GA22-ZW97 Auxiliary Switch, 2NO+2NC, 10A","metaDescription":"Siemens SIRIUS 3RH2911-1GA22-ZW97 auxiliary switch block, 2 NO + 2 NC, 10 A rated, screw terminals, snap-on mount, IP20. Active lifecycle, sourced 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","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/f54503f38003982176aee760e4a36e30.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=773571&mlfb=3RH2911-1GA22-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA22-ZW97/alternatives.json"},"ai":{"faq":[{"question":"Will 3RH2911-1GA22-ZW97 drop into a panel that was specified around 3RH2122-1WB40 without rewiring?","answer":"No — the 3RH2911-1GA22-ZW97 is a front-mounted auxiliary switch block physically coded for 3RH2140 and 3RH2440 contactor relays only, not for the 3RH2122 series. It will not mate with a 3RH2122 base without mechanical modification."},{"question":"What compliance documentation does Siemens provide for 3RH2911-1GA22-ZW97?","answer":"As a SIRIUS product, Siemens typically provides a declaration of conformity to IEC/EN 60947-5-1, plus RoHS and REACH compliance documentation upon request through the supply chain."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1GA22-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/3RH2911-1GA22-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}}