{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1GA31-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1GA31-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1GA31-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA31-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH2911-1GA31-ZW97, 3 NO + 1 NC, screw-type terminals, snap-on mounting, 10 A maximum, IP20 front.","salesMarkdown":"It gives you three normally-open and one normally-closed auxiliary contact set, wired through screw-type terminals, in a 36 mm wide package that clips onto standard DIN rail. Rated for 10 A maximum continuous current, with the AC-15 switching curve dropping to 6 A at 230 V and 3 A at 400 V. The DC switching side handles 10 A at 24 V, 6 A at 125 V, and 0.26 A at 600 V — so it covers both control-circuit and light power-switching duties inside the panel. Mechanical life is 10 million switching cycles typical. ## Panel fit and wiring constraints Snaps onto the contactor relay front — no tools needed for the mechanical fit, but the screw terminals need a screwdriver. Accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with ferrule, or 2x (20 to 16 AWG) and 2x (18 to 14 AWG) for stranded. Strip length isn't called out in the spec, but standard 8 mm works for this terminal class.","metaTitle":"Siemens 3RH2911-1GA31-ZW97 SIRIUS Auxiliary Switch, 3NO+1NC,","metaDescription":"Siemens SIRIUS 3RH2911-1GA31-ZW97 auxiliary switch block for 3RH2 contactor relays. 3 NO + 1 NC, screw terminals, snap-on DIN rail mount. Active production, 10A max, IP20. Sourced","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":"3","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=774106&mlfb=3RH2911-1GA31-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA31-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What contact configuration does this auxiliary switch have?","answer":"Three normally-open (NO) and one normally-closed (NC) contact, wired via screw-type terminals. The NO contacts are on terminals 53/54, 61/62, and 73/74; the NC is on 83/84."},{"question":"What is the maximum current rating?","answer":"10 A maximum continuous. For AC-15 switching duty, it's 6 A at 230 V and 3 A at 400 V. For DC, it handles 10 A at 24 V, 6 A at 125/250 V, and 0.26 A at 600 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1GA31-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/3RH2911-1GA31-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}}