{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-5MN32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-5MN32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-5MN32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5MN32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-5MN32-0DC0, molded case circuit breaker, 3-pole, 400 A, motor protection design, with undervoltage release and 2 auxiliary switches HQ.","salesMarkdown":"## 400 A continuous, flat derating to 70°C That flat thermal response simplifies coordination: the breaker's continuous rating is the same at the top of its operating range as at the bottom, per the datasheet. ## Breaking capacity across voltage classes Interrupting capacity is specified per voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. The 240 V figure is among the highest in the 3VA2 frame class — useful for high-fault utility service entrances or transformer secondaries where available fault current exceeds 100 kA. ## Motor protection design with integrated undervoltage release This MCCB is designated for motor protection, meaning its trip curve and thermal memory are tuned for motor starting inrush and locked-rotor conditions. The factory-fitted undervoltage release (UVR) drops the breaker when control voltage falls below the dropout threshold, standard for safety circuits that need to guarantee a power disconnect on loss of control power. That depth is the front-to-back panel footprint including the handle and terminal covers. The 138 mm width is the 3-pole frame width; adjacent breakers in a multi-unit lineup will need the side-to-side clearance per Siemens' installation instructions.","metaTitle":"Siemens 3VA2440-5MN32-0DC0 SENTRON MCCB, 400 A, 3-Pole, Moto","metaDescription":"Siemens 3VA2440-5MN32-0DC0 SENTRON molded case circuit breaker, 400 A continuous at 70°C, 187 kA at 240 V. Motor protection design with undervoltage release. Current lifecycle stag","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":"17 s","Minimum":"4 s","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":"Yes","Design Of The Product":"Motor protection","Communication Function":"No","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"66 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2440-5MN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","adjustable trip class (Tc CLASS)":"10A, 10E, 20E","Design Of The Overcurrent Release":"ETU350M","protection class IP / on the front":"IP40","operating power / at AC-3 / at 230 V":"90 000 W","operating power / at AC-3 / at 400 V":"160 000 W","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB25","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=569902&mlfb=3VA2440-5MN32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-5MN32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3VA2440-5MN32-0DC0?","answer":"The 3VA1110-5ED36-0AC0 is a smaller-frame SENTRON MCCB but in a different current class and pole configuration. For a direct drop-in replacement at 400 A, 3-pole, motor protection with UVR, the 3VA2440-5MN32-0DC0 is the specific variant — no exact functional second-source exists in the 3VA1 frame. Panel cutout dimensions differ between the 3VA2 and 3VA1 frame sizes, so rewiring would be required."},{"question":"Where can I buy the 3VA2440-5MN32-0DC0 and how is it quoted?","answer":"This part is sourced and quoted to order through independent distribution channels. Submit an RFQ for current pricing and availability — both are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"The SENTRON 3VA series carries UL, CSA, and IEC certifications per Siemens' standard compliance documentation. RoHS and REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-5MN32-0DC0","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/3VA2440-5MN32-0DC0 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}}