{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-6HN32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-6HN32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-6HN32-0AA0, molded case circuit breaker, 3-pole, 400 A continuous, 4800 A rated, ETU350 electronic trip unit, line protection design.","salesMarkdown":"## Siemens SENTRON 3VA2440-6HN32-0AA0 — 400 A MCCB with ETU350 The Siemens SENTRON 3VA2440-6HN32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 400 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed as the panel warms up. The 4800 A rated uninterrupted current (Iu) sets the breaker's frame size; the ETU350 electronic trip unit handles the overcurrent protection curve. This is a line-protection design (not motor-protection), so it's sized for feeder or main breaker duty in a distribution panel. ## What the interrupting ratings mean for coordination At 415 V and 440 V it holds 187 kA; at 500 V it drops to 121 kA; at 690 V it's 9 kA. The steep drop above 500 V means you need to verify the SCCR at your system voltage before committing the BOM line — at 690 V the 9 kA rating may force an upstream current-limiting device if your fault current exceeds that. Footprint is 138 mm wide by 248 mm tall by 110 mm deep — standard SENTRON 3VA frame size for a 400 A MCCB. The ETU350 is electronic (not thermal-magnetic), so it draws its own operating power from the line side and doesn't rely on bimetal heating — that helps with trip accuracy but means the breaker needs control power to trip on undervoltage or shunt-tap events (no undervoltage release fitted on this variant).","metaTitle":"Siemens SENTRON 3VA2440-6HN32-0AA0 MCCB, 400 A, 4800 A","metaDescription":"Siemens SENTRON 3VA2440-6HN32-0AA0 molded case circuit breaker, 400 A continuous, 4800 A rated, ETU350 trip unit, 242 kA at 240 V. Sourced to order against RFQ.","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":"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":"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","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":"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=132283&mlfb=3VA2440-6HN32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity at 415 V?","answer":"At 415 V the breaker is rated for 187 kA interrupting capacity."},{"question":"What trip unit does this breaker use?","answer":"It uses the ETU350 electronic overcurrent release — adjustable long-time, short-time, instantaneous, and ground-fault protection curves."},{"question":"Where can I buy 3VA2440-6HN32-0AA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will 3VA2440-6HN32-0AA0 fit in a panel designed for 5SQ2370-2YA05?","answer":"The 3VA2440-6HN32-0AA0 is a different frame generation from the 5SQ2370 series — verify mounting hole pattern and bus-bar spacing before assuming drop-in compatibility."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0AA0","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/3VA2440-6HN32-0AA0 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}}