{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-6HN32-0DA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-6HN32-0DA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0DA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0DA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-6HN32-0DA0, molded case circuit breaker, 400 A, 3-pole, 242 kA at 240 V AC, undervoltage release, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2440-6HN32-0DA0 is a 3-pole molded case circuit breaker rated for a continuous current of 400 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling, which simplifies panel thermal budgeting. Its interrupting capacity hits 242 kA at 240 V AC and still holds 187 kA at 415 V and 440 V AC, so it can sit ahead of high-fault transformers or busways without needing an upstream current-limiting fuse. The breaker includes an undervoltage release as the auxiliary release type — if control power drops, the UVR trips the breaker, which is the standard arrangement for emergency-stop or mains-loss disconnects in machine-tool panels. The case measures 248 mm high by 138 mm wide by 110 mm deep — a standard SENTRON 3VA footprint that drops into existing panel cutouts and busbar systems for the 400 A frame class. Maximum power dissipation is 66 W at rated load; account for that heat in the enclosure ventilation calculation, especially when grouping multiple breakers in a compact switchboard. The 242 kA SCCR at 240 V gives the 3VA2440-6HN32-0DA0 enough headroom for most 480Y/277 V secondary-side main breakers, while the 187 kA at 415 V suits European 400 V industrial grids.","metaTitle":"Siemens SENTRON 3VA2440-6HN32-0DA0 MCCB, 400A, 3-pole, 242kA","metaDescription":"Siemens SENTRON 3VA2440-6HN32-0DA0 molded case circuit breaker, 400A rated, 3-pole, breaking capacity 242kA at 240V AC. Undervoltage release included. Current production. Sourced t","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"138 mm","Height":"248 mm","Maximum":"4 800 A","Minimum":"4 800 A","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"66 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2440-6HN32-0AA0","Design Of The Auxiliary Switch":"Without","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","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":"H","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":null,"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=286237&mlfb=3VA2440-6HN32-0DA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0DA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-6HN32-0DA0 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ to confirm current availability and pricing — no stock or price figures are published here."},{"question":"What is the rated current of 3VA2440-6HN32-0DA0?","answer":"The breaker is rated for 400 A continuous, and that rating holds from 40 °C through 70 °C ambient without derating."},{"question":"What is the breaking capacity of 3VA2440-6HN32-0DA0 at 240 V?","answer":"It is 242 kA at 240 V AC. At 415 V and 440 V it is 187 kA, and at 500 V it is 121 kA."},{"question":"Does 3VA2440-6HN32-0DA0 include an undervoltage release?","answer":"Yes, the auxiliary release is an undervoltage release (UVR) — it trips the breaker when control voltage drops below the release threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0DA0","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/3VA2440-6HN32-0DA0 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}}