{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-6HN32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-6HN32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-6HN32-0DH0, molded case circuit breaker, 3-pole, 400 A rated continuous current, ETU350 electronic trip unit, breaking capacity 242 kA at 240 V AC, 187 kA at 415 V AC, with undervoltage release and auxiliary switches.","salesMarkdown":"That 400 A holds flat from 40 °C up to 50 °C, then derates to 384 A at 55 °C and 360 A at 70 °C — so in a warm enclosure you still have most of the rating. 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 187 kA at 415 V is the figure most plant distribution systems care about for high-fault bus work. The auxiliary contact block is a 2-switch plus 1 trip-alarm configuration (HQ type), so you get two form-C aux contacts and a separate alarm contact that changes state only on a trip event, not on manual open. Latching endurance is rated at 15,000 cycles, which is typical for a 400 A frame used in main or feeder duty — not for frequent switching, but for protection where the breaker stays closed most of the time. The breaker measures 138 mm wide, 248 mm tall, and 110 mm deep. The 110 mm depth includes the rotary handle and rear terminals; allow clearance for cable bending radius below the line and load lugs. Maximum power dissipation is 66 W at rated current. That matters for enclosure sizing — a 400 A MCCB dumping 66 W into a sealed cabinet needs ventilation or derating if the ambient inside hits 55 °C or higher. The derating curve from the spec table shows the breaker loses 40 A between 50 °C and 70 °C, so panel builders should place it away from other high-heat devices or provide forced airflow.","metaTitle":"Siemens 3VA2440-6HN32-0DH0 SENTRON MCCB, 400 A, 242 kA at 24","metaDescription":"Siemens SENTRON 3VA2440-6HN32-0DH0 molded case circuit breaker, 400 A rated, 242 kA breaking at 240 V, ETU350 release, undervoltage trip. 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","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":"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":"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 + 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":"3VA2440-6HN32-0AA0","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":"ETU350","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.":"4 800 A","Adjustable response value current / lr min.":"160 A","Adjustable response value current / Isd max.":"0 A","Adjustable response value current / Isd min.":"0 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=96656&mlfb=3VA2440-6HN32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6HN32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2440-6HN32-0DH0?","answer":"Submit an RFQ through the storefront. This part is sourced and quoted to order through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 3VA2440-6HN32-0DH0 at 415 V?","answer":"187 kA at 415 V AC. At 240 V it is 242 kA, at 440 V also 187 kA, at 500 V it drops to 121 kA, and at 690 V it is 40 kA."},{"question":"Does 3VA2440-6HN32-0DH0 include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) — the release module order code is 3VA9608-0BB25. The auxiliary contact block provides 2 auxiliary switches plus 1 trip alarm switch (HQ type)."},{"question":"What trip unit does 3VA2440-6HN32-0DH0 use?","answer":"The ETU350 electronic trip unit. It provides adjustable overload and short-circuit protection with an 800 V rated insulation voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-6HN32-0DH0","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/3VA2440-6HN32-0DH0 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}}