{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HN32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HN32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2 molded case circuit breaker, 3-pole, 400 A (non-derated to 70 °C), 4800 A frame, line protection with undervoltage release, 110 x 138 x 248 mm.","salesMarkdown":"## What this 400 A MCCB actually delivers The 4800 A frame size means the internal mechanism and contacts are built for that interrupting duty, not just the 400 A trip setting. Breaking capacity scales with system voltage: 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 9 kA at 690 V. At 415 V — common for industrial distribution in 400 V class systems — the 121 kA rating gives substantial headroom above typical available fault current, which simplifies selective coordination studies downstream. No auxiliary switch or ground-fault monitoring module is fitted on this variant. ## Sourcing and lifecycle — current production, quoted to order Power loss is 66 W maximum at rated load — a figure to factor into panel thermal calculations, especially in a densely populated enclosure where multiple breakers contribute to internal temperature rise. The 138 mm width for a 3-pole 400 A MCCB is standard for the SENTRON 3VA2 frame — it occupies a predictable footprint on a DIN-rail or bolted busbar assembly. Verify the existing panel's busbar spacing and mounting holes against these dimensions before committing the cutout. The 70 °C operating ceiling matches the non-derated current rating, so the breaker can sit next to other heat sources in a sealed enclosure without forced derating — a practical advantage for panel builders. The 3VA1110-5EF32-0LA0 is a smaller-frame breaker (160 A max, 25 kA at 415 V) for branch or light feeder duty. The 3VA2440-5HN32-0CA0 is a full-size main breaker — 400 A continuous, 121 kA at 415 V, with the 4800 A frame. They are not footprint-compatible: the 3VA1110 is narrower and shallower. If a panel was laid out for the 3VA1110 frame, the 3VA2440 will not drop in without busbar and enclosure changes.","metaTitle":"Siemens 3VA2440-5HN32-0CA0 SENTRON MCCB, 400 A, 4800 A Frame","metaDescription":"Siemens 3VA2440-5HN32-0CA0 SENTRON molded case circuit breaker, 400 A rated at 40-70°C, 4800 A frame, 187 kA at 240 V. Current production. Quoted to order.","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":"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":"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":"3VA2440-5HN32-0AA0","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":"3VA9608-0BB24","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":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=100691&mlfb=3VA2440-5HN32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2440-5HN32-0CA0 at 415 V?","answer":"121 kA at 415 V, which is the same rating it carries at 440 V."},{"question":"Where can I buy 3VA2440-5HN32-0CA0 and how is it quoted?","answer":"This MCCB is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"Does 3VA2440-5HN32-0CA0 include an undervoltage release?","answer":"Yes, it is fitted with an undervoltage release (UVR) as the auxiliary release. No auxiliary switch or ground-fault module is included."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0CA0","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/3VA2440-5HN32-0CA0 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}}