{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-6JP32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-6JP32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-6JP32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6JP32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-6JP32-0AA0, molded case circuit breaker, 3-pole, 400 A, ETU550 electronic trip unit, 242 kA at 240 V.","salesMarkdown":"That 400 A holds steady at every temperature step in between, so you can size it for the line current without worrying about summer temperatures in a non-conditioned enclosure. Breaking capacity is 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V. Those numbers cover most industrial low-voltage distribution systems — the 242 kA at 240 V handles high-fault scenarios common on the secondary side of large transformers, while the 187 kA at 415 V gives solid headroom for 400 V class plant networks. It carries the ETU550 electronic trip unit, which means adjustable long-time, short-time, instantaneous, and ground-fault protection (N-conductor protection adjustable OFF; 20% to 160%). This is a 3-pole MCCB that bolts into a panel cutout. Max power loss is 63.5 W, which means you should account for that heat in your enclosure thermal calculation. If you're packing several breakers side by side, that waste heat adds up and can drive the internal temperature above the 70 °C operating max if the cabinet isn't vented or cooled. ## What the ETU550 trip unit means for coordination That means it can talk to a higher-level system for power monitoring and remote trip indication — useful for a plant that wants to know which breaker opened without sending someone to the panel. It does not include an undervoltage release or voltage trigger as standard; those are separate accessories.","metaTitle":"Siemens 3VA2440-6JP32-0AA0 SENTRON MCCB, 400 A, 242 kA","metaDescription":"Siemens SENTRON 3VA2440-6JP32-0AA0 molded case circuit breaker, 400 A rated, 242 kA at 240 V, ETU550 trip unit, 3-pole, active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"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]":"5.43 in","Height [In]":"9.76 in","Limited To 1 S":"5 kA","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","Undervoltage Release":"No","Communication Function":"Yes","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","rated insulation voltage Ui":"800 V","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"ETU550","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 20% to 160%","reference code / acc. to IEC 81346-2":"Q","at AC / limited to 0.5 s / rated value":"5 kA","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"6 000 A","Adjustable response value current / li min.":"600 A","Neutral conductors / upgradeable/retrofittable":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","Max. rated operational current of the frame size":"630 A","Mechanical Service Life (Switching 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","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"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=389589&mlfb=3VA2440-6JP32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-6JP32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA2440-6JP32-0AA0 have communication capability?","answer":"Yes, this breaker has a communication function (Communication Function: Yes) via the ETU550 trip unit, enabling power monitoring and remote trip indication."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-6JP32-0AA0","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/3VA2440-6JP32-0AA0 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}}