{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7HL32-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7HL32-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7HL32-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7HL32-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-7HL32-0AF0, molded case circuit breaker, 3-pole, line protection, 400 A, ETU320 electronic trip unit, 330 kA breaking capacity at 240 V.","salesMarkdown":"It carries an ETU320 electronic trip unit — no communication, no voltage trigger, no ground-fault monitoring — just straightforward overcurrent protection with a trip indicator. Breaking capacity hits 330 kA at 240 V, 242 kA at 415 V, and still holds 52.5 kA at 690 V, so it handles high-fault utility feeds or transformer secondaries without cascading upstream. The 400 A rating is continuous through 50 °C ambient; above that, derate to 384 A at 55 °C, 376 A at 60 °C, 368 A at 65 °C, 360 A at 70 °C. That thermal curve matters when the breaker shares a crowded enclosure with other heat sources — plan your fill factor around the actual ambient, not the nameplate. At 690 V the 52.5 kA still covers most industrial motor-control center bus faults. ## Integration notes No undervoltage release, no shunt trip, no communication module — this is a standalone line-protection breaker.","metaTitle":"Siemens 3VA2440-7HL32-0AF0 SENTRON MCCB, 400 A, 3-Pole, ETU3","metaDescription":"Siemens 3VA2440-7HL32-0AF0 SENTRON molded case circuit breaker, 400 A rated continuous current, 3-pole, ETU320 electronic trip unit, 330 kA at 240 V. Current production. Available","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","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"52.5 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"384 A","at 60 °C":"376 A","at 65 °C":"368 A","at 70 °C":"360 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"63.5 W","Auxiliary contact version":"1 auxiliary switch + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2440-7HL32-0AA0","Design of the auxiliary release":"Without auxiliary release","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB11","Design of the overcurrent release":"ETU320","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"400 A","Adjustable response value current / li max.":"4 800 A","Adjustable response value current / li min.":"600 A","Adjustable response value current / lr min.":"160 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"C","Max. rated operational current of the frame size":"630 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1"}},"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=53142&mlfb=3VA2440-7HL32-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7HL32-0AF0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3VA2440-7HL32-0AF0?","answer":"This breaker is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings for the 3VA2440-7HL32-0AF0?","answer":"Rated continuous current 400 A, 3-pole, breaking capacity 330 kA at 240 V / 242 kA at 415 V / 52.5 kA at 690 V, ETU320 electronic trip unit, rated insulation voltage 800 V."},{"question":"What is the physical size of this MCCB?","answer":"Width 138 mm, height 248 mm, depth 110 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7HL32-0AF0","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/3VA2440-7HL32-0AF0 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}}