{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2GA31-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2GA31-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2GA31-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2GA31-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, 3RH2911-2GA31-ZX95, 3 NO + 1 NC, spring-loaded terminals, snap-on mounting, 10 A maximum.","salesMarkdown":"It provides 3 normally-open and 1 normally-closed contact set (3 NO + 1 NC), wired via spring-loaded terminals. The snap-on mounting means it clips directly onto the relay without tools — a common panel integration step for adding feedback or interlock signals to a motor starter or control circuit. At 24 V it handles 6 A; at 230 V it also handles 6 A; at 400 V it drops to 3 A. For DC switching, the 24 V rated value is 10 A, while at 220 V it drops to 1.2 A. The AC-15 rating at 690 V is 1 A — that's the inductive load rating for solenoid or contactor coils at high voltage. The insulation voltage is 690 V AC at pollution degree 3, with a surge voltage resistance of 6 kV, so it's suitable for 400/480 V panels with decent clearance. ## Panel Integration Detail The block measures 36 mm wide, 47.7 mm deep, 41.5 mm high — a compact front-mount addition that fits within the relay envelope. The spring-loaded terminals accept 2x 0.5–2.5 mm² stranded without ferrules, or 2x 0.5–1.5 mm² with ferrules. AWG equivalent is 2x 20–14. ## Contact Reliability and Mechanical Life Mechanical service life is 10 million switching cycles typical, so this block will outlast most contactor relays it mounts on.","metaTitle":"Siemens 3RH2911-2GA31-ZX95 Auxiliary Switch, 3NO+1NC, Spring","metaDescription":"Siemens SIRIUS 3RH2911-2GA31-ZX95 auxiliary switch for contactor relays. 3 NO + 1 NC, spring-loaded terminals, snap-on mounting, 10 A max. Current production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RH2","Depth":"47.7 mm","Width":"36 mm","title":"3RH2911-2GA31-ZX95","Height":"41.5 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","description":"auxiliary switch, on the front, 3 NO + 1 NC, 53/54, 61/62, 73/74, 83/84, current path: 1 NO, 1 NC, 1 NO, 1 NO, spring-loaded terminal, physically coded, only with contactor relays 3RH2140 and 3RH2440 combinable (according to EN 50011), reusable packaging, pack = 321 units","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)","Without Core End Processing":"2x (0.5 ... 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 ... 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":"spring-loaded terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b603656f0dc79624c554c829b9173d21.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=391763&mlfb=3RH2911-2GA31-ZX95"},"ai":{"faq":[{"question":"What is the note 'with 3RH2' on this component line?","answer":"The note indicates that this auxiliary switch is designed for use with 3RH2 contactor relays. It is physically coded to mate only with 3RH2140 and 3RH2440 relays, per the description."},{"question":"What are the key dimensions of 3RH2911-2GA31-ZX95?","answer":"The auxiliary switch measures 36 mm wide, 47.7 mm deep, and 41.5 mm high."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2GA31-ZX95","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/3RH2911-2GA31-ZX95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}