{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5MN32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5MN32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5MN32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5MN32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5MN32-0AA0, molded case circuit breaker, 3-pole, 400 A, motor protection design, breaking capacity 187 kA at 240 V.","salesMarkdown":"It is specifically designed for motor protection duty, which means its trip curve and thermal-magnetic characteristics are calibrated to handle the inrush and overload profile of induction motors — not just a general-purpose distribution breaker. ## Breaking capacity — what it means at the bus This MCCB delivers 187 kA breaking capacity at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. ## Motor protection features The trip indicator is not present, so a visual flag on the handle will not show; trip status must be read from the auxiliary contact block or the panel indication circuit. The breaker is designed to protect the motor, not the branch circuit — pair it with a separate feeder breaker upstream. Dimensions are 248 mm high, 138 mm wide, and 110 mm deep — a standard SENTRON 3VA frame size for 400 A. Maximum power loss is 63.5 W, which must be factored into the enclosure thermal budget — at full load, that heat needs to be vented or the internal ambient will climb above the 70 °C operating ceiling.","metaTitle":"Siemens 3VA2440-5MN32-0AA0 SENTRON MCCB, 400 A, 3-Pole, Moto","metaDescription":"Siemens SENTRON 3VA2440-5MN32-0AA0 molded case circuit breaker, 400 A rated continuous current, 3-pole, motor protection design. Breaking capacity 187 kA at 240 V. Phase failure de","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"17 s","Minimum":"4 s","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"9 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"400 A","at 60 °C":"400 A","at 65 °C":"400 A","at 70 °C":"400 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Limited To 1 S":"5 kA","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Motor protection","Communication Function":"No","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"63.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10E, 20E","Design Of The Overcurrent Release":"ETU350M","protection class IP / on the front":"IP40","operating power / at AC-3 / at 230 V":"90 000 W","operating power / at AC-3 / at 400 V":"160 000 W","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"630 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$866.14","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0eb36652ce522f093395d6bd0dd27e34.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569884&mlfb=3VA2440-5MN32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5MN32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA2440-5MN32-0AA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."},{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"121 kA at 415 V AC."},{"question":"Does this breaker have phase failure protection?","answer":"Yes, phase failure detection is built in — it trips if one phase drops out."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5MN32-0AA0","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/3VA2440-5MN32-0AA0 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}}