{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9277-0FK43","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9277-0FK43","canonicalUrl":"https://aoctrl.com/siemens/3VA9277-0FK43","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9277-0FK43","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, door-coupling rotary operating mechanism, IP65, NEMA 4/4X, 105 x 82 mm, with door interlock, 24 V DC lighting kit, and door-open position accessory for 3VA6 150/250 and 3VA5 250 frames.","salesMarkdown":"## What this accessory does on your panel door The Siemens 3VA9277-0FK43 is a door-coupling rotary operating mechanism for SENTRON molded-case breakers. It lets the breaker handle stay behind a sealed door while the rotary operator on the outside provides on/off/trip control. The IP65 rating (NEMA 4, 4X) means the operator face withstands hose-directed water and corrosion — suitable for washdown environments, outdoor enclosures, or food-processing zones where a standard IP20 door cutout would fail. ## Panel cutout and fit The operator occupies a 105 mm wide by 82 mm high door cutout. That footprint is specific to the SENTRON 3VA platform; it is not a generic 22 mm pilot-device hole. The assembly includes a door interlock, a 24 V DC lighting kit for the handle position indicator, and a door-open position accessory that prevents closing the door if the breaker is in the ON position — a standard safety interlock for personnel protection during maintenance. ## Compatible breaker frames Per the manufacturer's specification, this operator fits the 3VA6 150 A and 250 A frames and the 3VA5 250 A frame. If your BOM calls for a door-mounted rotary operator on one of those breaker sizes, this is the matching SENTRON accessory. It does not fit the 3VA4 or 3VA1 frame sizes; those use a different operator order code.","metaTitle":"Siemens 3VA9277-0FK43 SENTRON Door-Coupling Rotary Operator,","metaDescription":"Siemens 3VA9277-0FK43 SENTRON door-coupling rotary operating mechanism. IP65, NEMA 4/4X, 105 x 82 mm. For 3VA6 150/250 and 3VA5 250 frames. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Circuit Breaker Accessories"],"specifications":{"Width":"105 mm","Height":"82 mm","Accessories":"Door-coupling rotary operating mechanisms","Product version":"Door-coupling rotary operating mechanism","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Accessories","Protection class IP":"IP65","Degree of protection NEMA rating":"NEMA 4, 4X"}},"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=650765&mlfb=3VA9277-0FK43","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9277-0FK43/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA9277-0FK43 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing; no stock or price figures are published here."},{"question":"What is the panel cutout size for 3VA9277-0FK43?","answer":"The door cutout is 105 mm wide by 82 mm high. Verify the door thickness and clearance behind the panel before cutting; the operator includes a door interlock and lighting kit that add depth behind the door."},{"question":"What breaker frames does 3VA9277-0FK43 fit?","answer":"It fits the SENTRON 3VA6 150 A and 250 A frames and the 3VA5 250 A frame. It does not fit the 3VA4 or 3VA1 frame sizes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9277-0FK43","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/3VA9277-0FK43 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}}