{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7HL32-0AD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7HL32-0AD0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7HL32-0AD0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7HL32-0AD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-7HL32-0AD0, molded case circuit breaker, 3-pole, 400 A rated continuous current Iu, ETU320 trip unit, line protection, breaking capacity 330 kA at 240 V.","salesMarkdown":"## 400 A MCCB with 330 kA interrupting capacity — what that means for your main feeder The Siemens SENTRON 3VA2440-7HL32-0AD0 is a 3-pole molded case circuit breaker rated for 400 A continuous current (Iu) with an interrupting capacity of 330 kA at 240 V AC. At 415 V and 440 V it still clears 242 kA, and at 690 V it handles 52.5 kA, so it stays selective downstream across a range of distribution voltages. ## Thermal derating and trip unit Above that it derates: 384 A at 55 °C, 376 A at 60 °C, 368 A at 65 °C, and 360 A at 70 °C. The overcurrent release is an ETU320 electronic trip unit — that's a basic thermal-magnetic replacement with fixed settings, not the adjustable ETU600. Power loss is 63.5 W max, which matters for enclosure thermal calculations. ## Panel fit and auxiliary contacts Dimensions are 248 mm high, 138 mm wide, 110 mm deep — standard SENTRON 3VA2 footprint for a 400 A frame. It ships with three factory-fitted auxiliary switches (HQ type). The basic switch assembly is order code 3VA2440-7HL32-0AA0, and the integrated auxiliary trip module is 3VA9608-0BB24, so replacement spares are traceable. No voltage trip, no communication module, no phase-failure detection on this line-protection variant.","metaTitle":"Siemens 3VA2440-7HL32-0AD0 SENTRON MCCB, 400 A, 330 kA","metaDescription":"Siemens SENTRON 3VA2440-7HL32-0AD0 molded case circuit breaker, 400 A rated, 330 kA breaking at 240 V. Active production. Sourced to order. Request quote.","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":"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":"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":"3 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":"3VA2440-7HL32-0AA0","Design of the auxiliary release":"Without auxiliary release","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","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":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=138537&mlfb=3VA2440-7HL32-0AD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7HL32-0AD0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"At 240 V it clears 330 kA; at 415 V and 440 V it clears 242 kA; at 500 V it clears 187 kA; and at 690 V it clears 52.5 kA. These are the maximum interrupting ratings for the 3VA2440-7HL32-0AD0."},{"question":"What are the physical dimensions of this breaker?","answer":"Height is 248 mm, width is 138 mm, depth is 110 mm — standard 3VA2 frame size for a 400 A rated breaker."},{"question":"Where can I buy 3VA2440-7HL32-0AD0 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit a request for a firm commercial offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7HL32-0AD0","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/3VA2440-7HL32-0AD0 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}}