{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5HN32-0AC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5HN32-0AC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0AC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0AC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON molded case circuit breaker, 3VA2440-5HN32-0AC0, 3-pole, 400 A at 40 °C, 4800 A frame, 187 kA interrupting at 240 V, line protection, 2 auxiliary switches HQ.","salesMarkdown":"The Siemens 3VA2440-5HN32-0AC0 is a SENTRON molded case circuit breaker rated for line protection, built on a 4800 A frame and delivering 400 A continuous at 40 °C — no derating needed up to 70 °C, which simplifies panel thermal budgeting when you're packing breakers close together. The 3-pole design includes two built-in auxiliary switches (HQ type) for remote status feedback — no separate aux kit to order and fit. At 248 mm tall, 138 mm wide, and 110 mm deep, this MCCB fits standard distribution panel cutouts and leaves room for gland plates and cable bending radius on the line side. Maximum power loss of 63.5 W means the breaker dissipates heat into the enclosure; factor that into your panel cooling calculation if you're grouping several high-frame units.","metaTitle":"Siemens 3VA2440-5HN32-0AC0 SENTRON MCCB, 400 A, 4800 A frame","metaDescription":"Siemens 3VA2440-5HN32-0AC0 SENTRON molded case circuit breaker, 400 A at 40 °C, 4800 A frame, 187 kA at 240 V. Current lifecycle. Sourced to order. Request a 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","Maximum":"4 800 A","Minimum":"4 800 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 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","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":"3VA2440-5HN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","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":"ETU350","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":"LSI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"M","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=143873&mlfb=3VA2440-5HN32-0AC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5HN32-0AC0/alternatives.json"},"ai":{"faq":[{"question":"Does this breaker come with auxiliary contacts?","answer":"Yes, it includes two built-in auxiliary switches (HQ type) for remote status indication — no separate accessory required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5HN32-0AC0","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/3VA2440-5HN32-0AC0 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}}