{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1GA13-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1GA13-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1GA13-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA13-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-1GA13-ZW97, auxiliary switch block, 1 NO + 3 NC, screw terminals, snap-on mounting, 10 A rated current, IP20.","salesMarkdown":"## Auxiliary switch block for 3RH2 contactor relays The contact configuration follows EN 50011, with terminals marked 53/54 (NO), 61/62, 71/72, and 81/82 (NC). Snap-on mounting means it clips directly onto the relay without tools — no DIN-rail space consumed beyond the base relay itself. The screw-type terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) conductors, or the AWG equivalents 2x (20–16) and 2x (18–14). At 24 V the contacts are rated for 10 A continuous; at 230 V AC the rating is 6 A. For DC switching the derating is steeper: 6 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. The AC-15 rating at 690 V is 1 A, which covers the inductive control-circuit loads on higher-voltage panels. Mechanical service life is 10 million switching cycles typical. Surge voltage resistance is 6 kV, and the rated insulation voltage at pollution degree 3 is 690 V AC. ## Physical coding and compatibility The switch block is physically coded, meaning it only fits contactor relays 3RH2140 and 3RH2440 — a mechanical keying prevents mounting on the wrong relay variant. Dimensions are 36 mm wide, 37.5 mm high, and 43.7 mm deep. IP20 protection on the front suits enclosed panel installation. The multi-unit packaging ships 120 pieces per pack.","metaTitle":"Siemens 3RH2911-1GA13-ZW97 Auxiliary Switch, 1NO+3NC, 10A","metaDescription":"Siemens SIRIUS 3RH2911-1GA13-ZW97 auxiliary switch block, 1 NO + 3 NC contacts, rated 10 A at 24 V. Snap-on mount for 3RH2 contactor relays. Active production, 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":"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=774103&mlfb=3RH2911-1GA13-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA13-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the contact configuration of this auxiliary switch?","answer":"It provides 1 normally-open and 3 normally-closed contacts, wired to terminals 53/54 (NO), 61/62, 71/72, and 81/82 (NC) per EN 50011."},{"question":"Will 3RH2911-1GA13-ZW97 fit on a 3RH2122-1WB40 relay?","answer":"No — this switch block is physically coded for contactor relays 3RH2140 and 3RH2440 only. It will not mount on the 3RH2122 frame without mechanical interference."},{"question":"What is the maximum current rating at 24 V?","answer":"The contacts are rated for 10 A at 24 V, both for the NO and NC paths."},{"question":"Where can I buy 3RH2911-1GA13-ZW97?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1GA13-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/3RH2911-1GA13-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}}