{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HL42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HL42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HL42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HL42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5HL42-0AA0, molded case circuit breaker, 4-pole, 400 A continuous, ETU320 electronic trip unit, 187 kA at 240 V.","salesMarkdown":"## 400 A MCCB with 187 kA interrupting capacity — panel fit and trip logic The Siemens SENTRON 3VA2440-5HL42-0AA0 is a 4-pole molded case circuit breaker rated for 400 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. Its ETU320 electronic trip unit handles the overload and short-circuit protection curve, with a maximum breaking capacity of 187 kA at 240 V and 121 kA at 415 V. The breaker measures 248 mm high, 184 mm wide, and 110 mm deep — a 4-pole footprint that fits standard SENTRON 3VA panel cutouts. ## Trip unit and protection logic The ETU320 overcurrent release is a microprocessor-based trip unit with adjustable long-time, short-time, instantaneous, and ground-fault protection bands — though this variant ships without ground-fault monitoring. It is a line-protection design, meaning the trip curve is optimized for feeder and main breaker duty rather than motor or generator protection.","metaTitle":"Siemens SENTRON 3VA2440-5HL42-0AA0 MCCB, 400 A, 4-Pole, 187","metaDescription":"Siemens SENTRON 3VA2440-5HL42-0AA0 molded case circuit breaker, 400 A, 4-pole, 187 kA at 240 V. ETU320 release. Active lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"184 mm","Height":"248 mm","Maximum":"4 800 A","Minimum":"600 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]":"7.24 in","Height [In]":"9.76 in","Limited To 1 S":"5 kA","Trip Indicator":"No","Number Of Poles":"4","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":"ETU320","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 100%","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":"LI","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=104645&mlfb=3VA2440-5HL42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HL42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2440-5HL42-0AA0 at 240 V?","answer":"The interrupting rating is 187 kA at 240 V. At 415 V and 440 V it holds 121 kA, dropping to 75.6 kA at 500 V and 9 kA at 690 V."},{"question":"How do I get pricing and availability for 3VA2440-5HL42-0AA0?","answer":"Submit an RFQ through the distributor; the part is sourced to order with current pricing and lead time confirmed at quote time."},{"question":"What is the closest functional alternative — 3VA2225-5HN42-0BB0?","answer":"The 3VA2225-5HN42-0BB0 is a smaller-frame 4-pole MCCB with lower continuous and interrupting ratings. It will not drop into a panel designed for the 3VA2440-5HL42-0AA0 without busbar and cutout changes — the 3VA2225 frame is physically smaller and rated for lower fault current."},{"question":"What compliance documentation does Siemens provide for this breaker?","answer":"Siemens SENTRON 3VA series breakers carry IEC 60947-2 certification and CE marking as standard. RoHS and REACH declarations are available through Siemens Industry Online Support. The specific UL/CSA listing status should be verified against the nameplate for the target jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HL42-0AA0","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/3VA2440-5HL42-0AA0 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}}