{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-6HL32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-6HL32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-6HL32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HL32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-6HL32-0DC0, molded case circuit breaker, 3-pole, 400 A, 242 kA at 240 V, ETU320 electronic trip unit, undervoltage release, 2 auxiliary switches HQ.","salesMarkdown":"The Siemens 3VA2440-6HL32-0DC0 is a 3-pole SENTRON molded case circuit breaker rated for 400 A continuous current at 40 °C, with full current hold through 50 °C and a gradual thermal derating curve down to 360 A at 70 °C — meaning it carries its nameplate rating across typical panel ambient without forced derating until you push past 55 °C. Breaking capacity is 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V — that 242 kA figure at 240 V covers high-fault utility feeds and transformer secondaries where available fault current is highest; the 40 kA at 690 V still clears a substantial industrial fault on 600 V class systems. ## Undervoltage release and auxiliary contacts Factory-fitted with an undervoltage release (UVR) — part number 3VA9608-0BB25 for the integrated auxiliary trip — and two HQ auxiliary switches. The UVR drops the breaker on loss of control voltage, which is standard for emergency-stop chains and safety-related machine feeds where you need the main power to drop when the E-stop circuit opens. No communication function or voltage trigger on this variant — it is a pure power breaker with local status indication via the aux switches. If you need remote monitoring or undervoltage time delay, you step up to the 3VA2 with communication options. ## Panel fit — dimensions and mounting The 110 mm depth means it fits standard 400 mm deep enclosures with clearance for rear bus connections and cable bending radius. Maximum power loss of 66 W at rated current — factor that into enclosure thermal rise calculations, especially in sealed NEMA 4X or IP65 cabinets where natural convection is limited.","metaTitle":"Siemens 3VA2440-6HL32-0DC0 SENTRON MCCB, 400 A, 242 kA","metaDescription":"Siemens 3VA2440-6HL32-0DC0 SENTRON molded case circuit breaker, 400 A rated at 40 °C, 242 kA breaking at 240 V. ETU320 release, undervoltage trip. Current production, sourced to or","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":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"40 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":"No","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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"66 W","Auxiliary contact version":"2 auxiliary switches 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":"3VA2440-6HL32-0AA0","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"H","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=464317&mlfb=3VA2440-6HL32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HL32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-6HL32-0DC0 and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not published here."},{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V — the 242 kA figure at 240 V covers high-fault utility feeds and transformer secondaries."},{"question":"What trip unit does the 3VA2440-6HL32-0DC0 use?","answer":"ETU320 electronic trip unit with adjustable long-time, short-time, and instantaneous protection for line-protection duty. No ground-fault or phase-failure detection onboard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-6HL32-0DC0","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/3VA2440-6HL32-0DC0 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}}