{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-1GA22-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-1GA22-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-1GA22-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA22-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH2911-1GA22-ZX95, 2 NO + 2 NC, screw terminals, snap-on mounting, 10 A rated current.","salesMarkdown":"The Siemens 3RH2911-1GA22-ZX95 is a SIRIUS auxiliary switch block that mounts on the front of 3RH2140 and 3RH2440 contactor relays, adding 2 normally-open and 2 normally-closed contact paths via screw terminals. It is physically coded to prevent mis-mounting on the wrong relay frame, so the install is unambiguous — the keying matches only the intended 3RH2 base units. At 24 V it handles 6 A; at 230 V it also carries 6 A, while at 400 V it drops to 3 A. For AC-15 inductive loads at 690 V the rating is 1 A. These are not derating curves to guess — the 6 A at 230 V tells you this block handles typical control-circuit loads (contactors, relays, solenoid valves) on a standard 230 V line without an extra interposing relay. The 1 A at 690 V AC-15 covers the higher-voltage switching found in some motor control centers. Snap-on mounting onto the contactor relay — no tools needed for the attachment, but the screw terminals require a screwdriver for the wiring. The block is 36 mm wide, 37.5 mm tall, and 43.7 mm deep, so it adds about 44 mm to the relay depth. The screw terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) with core-end processing, or the AWG equivalents 2x (20 to 16) and 2x (18 to 14).","metaTitle":"Siemens 3RH2911-1GA22-ZX95 SIRIUS Auxiliary Switch, 2NO+2NC,","metaDescription":"Siemens SIRIUS 3RH2911-1GA22-ZX95 auxiliary switch block, 2 NO + 2 NC contacts rated 10 A. Snap-on mount for 3RH2 contactor relays. Active production, sourced to order. Request quo","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/ea4dade993d24af864d80331edda8cc4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=761128&mlfb=3RH2911-1GA22-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2911-1GA22-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RH2911-1GA22-ZX95?","answer":"The 3RH2122-1WB40 is a physically similar auxiliary switch block from the same SIRIUS family, but it is designed for 3RH2122 contactor relays rather than the 3RH2140/3RH2440 frames the 3RH2911-1GA22-ZX95 mates with. The physical coding prevents cross-mounting, so they are not drop-in substitutes without changing the base relay."},{"question":"Will 3RH2911-1GA22-ZX95 drop into a panel specified around 3RH2122-1WB40?","answer":"No — the 3RH2911-1GA22-ZX95 is physically coded to mount only on 3RH2140 and 3RH2440 contactor relays, not on the 3RH2122 frames. The panel would need the correct base relay to accept this switch block."},{"question":"Where can I buy 3RH2911-1GA22-ZX95?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-1GA22-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/3RH2911-1GA22-ZX95 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}}