{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1926-2B","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1926-2B","canonicalUrl":"https://aoctrl.com/siemens/3RV1926-2B","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1926-2B","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS door-coupling rotary operating mechanism for circuit breaker size S0, gray handle, standard design, screw fixing, 78mm depth.","salesMarkdown":"The Siemens 3RV1926-2B is a SIRIUS door-coupling rotary operating mechanism designed for heavy-duty operating conditions with circuit breakers of size S0. It allows the breaker to be operated from outside an enclosed panel through a door-mounted rotary handle, keeping the arc chamber sealed inside the enclosure during switching. The mechanism uses screw fixing for panel mounting and can be installed in any orientation. It measures 75 mm wide by 75 mm tall by 78 mm deep, with an overall length of 300 mm including the shaft and coupling hardware. This part is in a product phase-out status. The preferred successor is the 3RV2926-3B, which carries a different drilling pattern — so a panel cutout modification will be required when transitioning. The operating mechanism is rated for up to 151 switching operations per hour, with an operating temperature range of -20 to +70 °C and a storage range of -50 to +80 °C. The gray actuating element is the standard design variant.","metaTitle":"Siemens 3RV1926-2B SIRIUS Door-Coupling Rotary Operator, S0","metaDescription":"Siemens 3RV1926-2B SIRIUS door-coupling rotary operating mechanism for S0 circuit breakers. Phase-out product; successor 3RV2926-3B available. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"78mm","Width":"75mm","Height":"75mm","Length":"300mm","Upwards":"0mm","Diameter":"40mm","Forwards":"0mm","Backwards":"0mm","Downwards":"0mm","At The Side":"0mm","During Storage":"-50 ... +80°C","lifecycle_stage":"current","During Operation":"-20 ... +70°C","Fastening Method":"screw fixing","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"door-coupling rotary operating mechanism for heavy-duty operating conditions","Suitability For Use":"circuit-breakers S0","Design Of The Product":"standard","Operating Frequency Maximum":"151/h","Size Of The Circuit-Breaker":"S0","Color Of The Actuating Element":"gray"}},"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=523345&mlfb=3RV1926-2B","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1926-2B/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RV1926-2B?","answer":"The official successor is 3RV2926-3B. Note the drilling pattern changes, so existing panel cutouts will need modification for the new part."},{"question":"Where can I buy 3RV1926-2B?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What circuit breakers is 3RV1926-2B compatible with?","answer":"It is designed for use with SIRIUS circuit breakers of size S0, under heavy-duty operating conditions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1926-2B","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/3RV1926-2B 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}}