{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1140-4EF32-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1140-4EF32-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1140-4EF32-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF32-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160, breaking capacity class S, Icu=36kA @ 415V, 3-pole, line protection TM240, In=40A, overload Ir=28A...40A, short-circuit Ii=5...10 x In, with undervoltage release 24V DC.","salesMarkdown":"The Siemens 3VA1140-4EF32-0BA0 is a 3-pole IEC molded-case circuit breaker on a 160 A frame, rated for breaking capacity class S with an Icu of 36 kA at 415 V AC. The TM240 thermal-magnetic trip unit provides line protection with an adjustable overload Ir from 28 A to 40 A and a short-circuit pickup Ii adjustable from 5 to 10 times In, so you can dial in coordination with downstream breakers. An integral undervoltage release (UVR) at 24 V DC drops the breaker on loss of control voltage — typical for emergency-stop or safety-shutdown circuits where a voltage sag or E-stop pushbutton must kill the load. The 160 A frame size dictates the physical footprint and bus-bar spacing — this breaker occupies the same panel cutout as other 3VA1 frame 160 devices, so a panel layout already dimensioned for a 3VA1 will accept this unit without re-drilling. The UVR coil draws its 24 V DC from a separate control supply; verify that the power supply can source the inrush current (typically around 5-10 W for the UVR solenoid) without dropping below the dropout threshold. The TM240 thermal element is ambient-compensated per IEC 60947-2, but if the panel ambient exceeds 40 °C, apply the manufacturer's derating curve to the Ir setting to avoid nuisance trips.","metaTitle":"Siemens 3VA1140-4EF32-0BA0 Circuit Breaker, 36kA @ 415V","metaDescription":"Siemens 3VA1140-4EF32-0BA0 circuit breaker, IEC frame 160, breaking capacity class S, Icu=36kA @ 415V, 3-pole, TM240, In=40A, UVR 24V DC. Current lifecycle. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"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=250003&mlfb=3VA1140-4EF32-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1140-4EF32-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 3VA1140-4EF32-0BA0?","answer":"It is a 3-pole IEC frame 160 breaker with breaking capacity class S, Icu=36kA @ 415V, TM240 thermal-magnetic trip, In=40A, overload Ir adjustable 28A...40A, short-circuit Ii adjustable 5...10 x In, and an undervoltage release (UVR) at 24V DC."},{"question":"Where can I buy 3VA1140-4EF32-0BA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1140-4EF32-0BA0","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/3VA1140-4EF32-0BA0 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}}