{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7HL32-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7HL32-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7HL32-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7HL32-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-7HL32-0AJ0, 3-pole molded case circuit breaker, 400 A continuous rating, adjustable instantaneous trip 600–4800 A, breaking capacity 330 kA at 240 V AC, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA2440-7HL32-0AJ0 is a 3-pole molded case circuit breaker rated for 400 A continuous current across its full ambient range of 40 °C to 70 °C — no derating needed up to the top of that band. That flat thermal curve is the headline feature for panel builders: it simplifies coordination in a warm enclosure where other breakers would force a frame size bump. The adjustable instantaneous trip range spans 600 A to 4800 A, letting you dial in selectivity with downstream devices without swapping the breaker. At 240 V the interrupting rating hits 330 kA; at 415 V and 440 V it holds at 242 kA, dropping to 187 kA at 500 V and 9 kA at 690 V. Maximum power loss is 63.5 W — relevant for thermal management inside a sealed panel. The base order code is 3VA2440-7HL32-0AA0; this -0AJ0 variant adds the specified auxiliary contact package. The depth of 110 mm (4.33 in) is compact enough for shallow backpanel layouts; verify gland-plate clearance against the 248 mm height when mounting in a row with other breakers. The 70 °C operating ceiling matches the top of the flat derating curve, so the breaker delivers its full 400 A even in a hot enclosure near the top of a panel.","metaTitle":"Siemens 3VA2440-7HL32-0AJ0 SENTRON MCCB, 400 A, 3-Pole","metaDescription":"Siemens 3VA2440-7HL32-0AJ0 SENTRON molded case circuit breaker, 400 A continuous at 40-70 °C, 3-pole, adjustable 600-4800 A trip range. Breaking capacity 330 kA at 240 V. Current l","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","Maximum":"4 800 A","Minimum":"600 A","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 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":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","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","Of The Supplied Basic Switch":"3VA2440-7HL32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HP","Design Of The Auxiliary Release":"Without auxiliary release","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU320","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"630 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","Switching Capacity Class Of The Circuit Breaker":"C","Mechanical Service Life (Operating 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"}},"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=491147&mlfb=3VA2440-7HL32-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7HL32-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2440-7HL32-0AJ0?","answer":"This part is available to quote against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here, but the part is actively sourced."},{"question":"What is the continuous current rating of this MCCB?","answer":"400 A continuous across the full ambient range of 40 °C to 70 °C — no derating required. The adjustable instantaneous trip range is 600 A to 4800 A."},{"question":"What are the physical dimensions of 3VA2440-7HL32-0AJ0?","answer":"248 mm high × 138 mm wide × 110 mm deep (9.76 in × 5.43 in × 4.33 in). Standard 3-pole MCCB footprint for the 400 A class."},{"question":"What breaking capacity does this breaker have at different voltages?","answer":"330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V. The 330 kA at 240 V is notably high for a 400 A frame — suitable for high-fault locations like transformer secondaries."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7HL32-0AJ0","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/3VA2440-7HL32-0AJ0 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}}