{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-6HN32-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-6HN32-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-6HN32-0AJ0, molded case circuit breaker, 3-pole, 400 A, breaking capacity 242 kA at 240 V, 187 kA at 415 V, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2440-6HN32-0AJ0 is a 3-pole molded case circuit breaker (MCCB) rated for 400 A continuous at 40 °C through 70 °C — no derating needed across that range. At 240 V the breaker interrupts 242 kA symmetrical; at 415 V and 440 V it holds 187 kA; at 500 V it drops to 121 kA; at 690 V it is still rated 9 kA. These are the maximum fault currents the MCCB can safely clear without welding or rupturing. For a 400 A feeder on a 480 V system the 187 kA rating at 415 V gives ample SCCR headroom for most industrial switchboards — coordination studies should verify the upstream transformer impedance and available fault current, but this breaker will not be the weak link in the chain. The 3-pole footprint is standard for this class; verify the busbar or lug kit spacing matches the 138 mm width before panel layout.","metaTitle":"Siemens 3VA2440-6HN32-0AJ0 SENTRON MCCB, 400 A, 3-Pole, 242","metaDescription":"Siemens SENTRON 3VA2440-6HN32-0AJ0 molded case circuit breaker, 400 A continuous, 3-pole, 242 kA breaking at 240 V. Active production. Sourced to order against RFQ.","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":"Yes","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":"Line protection","Communication Function":"No","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","Of The Supplied Basic Switch":"3VA2440-6HN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HP","Design Of The Auxiliary Release":"Without auxiliary release","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","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","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=464902&mlfb=3VA2440-6HN32-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at 415 V?","answer":"187 kA at 415 VAC."},{"question":"Where can I buy the 3VA2440-6HN32-0AJ0 and how is it quoted?","answer":"It is sourced through independent distribution and quoted to order against an RFQ. Availability and pricing are confirmed at quote time."},{"question":"What is the continuous current rating of this breaker?","answer":"400 A continuous from 40 °C up to 70 °C ambient — no derating required across that range."},{"question":"Does the 3VA2440-6HN32-0AJ0 include an undervoltage release or ground-fault monitoring?","answer":"No — it ships without auxiliary release and without ground-fault monitoring. It is a line-protection device only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0AJ0","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/3VA2440-6HN32-0AJ0 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}}