{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9908-0BD12","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9908-0BD12","canonicalUrl":"https://aoctrl.com/siemens/3VA9908-0BD12","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9908-0BD12","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON universal release, 24 VDC auxiliary release accessory for 3VA1 and 3VA20 up to 3VA25, 3 slots, 4 kV surge voltage resistance.","salesMarkdown":"The Siemens 3VA9908-0BD12 is a 24 VDC universal release accessory in the SENTRON line, designed as an auxiliary release for 3VA1 and 3VA20 through 3VA25 molded-case circuit breakers. It occupies three slots in the breaker accessory bay and draws up to 20 W at DC maximum, so the control transformer or DC supply feeding it needs to budget for that load. The part carries an overvoltage category III rating with 4 kV surge voltage resistance and pollution degree 3 — meaning it's rated for fixed-installation panels in industrial environments where transients and conductive dust are expected. Physical footprint is 25.7 mm wide by 65.1 mm high by 28.8 mm deep — it nests inside the breaker's accessory cavity, not on the DIN rail, so it doesn't consume extra panel width. The stripped length for the connecting leads is 10 mm (0.4 in), which is standard for the screw-clamp terminals on the 3VA accessory bus.","metaTitle":"Siemens 3VA9908-0BD12 Universal Release, 24 VDC, SENTRON","metaDescription":"Siemens 3VA9908-0BD12 universal release accessory for 3VA1/3VA20-25 breakers. 24 VDC, 20 W max, 4 kV surge. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"28.8 mm","Width":"25.7 mm","title":"3VA9908-0BD12","Height":"65.1 mm","Maximum":"16","Minimum":"20","Accessories":"Auxiliary release","description":"Universal release 24 V DC accessory for 3VA1 and 3VA20 up to 3VA25","Number Of Slots":"3","Stripped Length":"10 mm","lifecycle_stage":"current","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Accessories","Overvoltage Category":"III","Stripped Length [In]":"0.4 in","Design Of The Product":"auxiliary release","Surge Voltage Resistance":"4 kV","consumed active power / at DC / maximum":"20 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5a4cc14123d7cadb2a8aa2e55285ea88.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=251950&mlfb=3VA9908-0BD12"},"ai":{"faq":[{"question":"What breakers does the 3VA9908-0BD12 fit?","answer":"It is a universal release accessory for 3VA1 and 3VA20 through 3VA25 molded-case circuit breakers."},{"question":"Will 3VA9908-0BD12 drop into a panel specified around 5SY4140-7?","answer":"No — the 5SY4140-7 is a miniature circuit breaker, not a molded-case breaker; this release is designed for the 3VA family's accessory slot and has no mechanical or electrical interchange with the 5SY series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9908-0BD12","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/3VA9908-0BD12 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}