{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1936-2B","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1936-2B","canonicalUrl":"https://aoctrl.com/siemens/3RV1936-2B","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1936-2B","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, door-coupling rotary operating mechanism for heavy-duty conditions, circuit-breaker size S2, screw fixing, gray handle, 78mm depth, 75mm width, 75mm height, 300mm length.","salesMarkdown":"The Siemens 3RV1936-2B is a door-coupling rotary operating mechanism from the SIRIUS family, designed for heavy-duty operating conditions on circuit-breakers of size S2. It mounts via screw fixing in any position and is rated for up to 151 operations per hour, with an operating temperature range of -20 to +70 °C. The mechanism is intended for panel-mounted circuit breakers where the operator needs to open or close the breaker from outside the enclosure door — common in motor control centers and distribution panels. This part is in product phase-out. The manufacturer lists the successor as 3RV2936-2B, which carries a different drilling pattern — so a panel cutout or mounting plate change may be required when switching. The mechanism measures 78 mm depth, 75 mm width, 75 mm height, with a total length of 300 mm. The handle is gray. Screw fixing allows secure attachment to the enclosure door. The mechanism couples to the breaker rotary operator through the door, so the door thickness and alignment must be checked against the 78 mm depth dimension.","metaTitle":"Siemens 3RV1936-2B SIRIUS Door-Coupling Rotary Operating Mec","metaDescription":"Siemens 3RV1936-2B SIRIUS door-coupling rotary operating mechanism for circuit breaker size S2. Phase-out — successor 3RV2936-2B. Sourced to order. RFQ for pricing.","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 S2","Design Of The Product":"standard","Operating Frequency Maximum":"151/h","Size Of The Circuit-Breaker":"S2","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=407273&mlfb=3RV1936-2B","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1936-2B/alternatives.json"},"ai":{"faq":[{"question":"What replaces 3RV1936-2B?","answer":"The official successor is 3RV2936-2B. Note the drilling pattern changes, so panel modification may be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1936-2B","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/3RV1936-2B 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}}