{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2440-7MN32-0CB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2440-7MN32-0CB0","canonicalUrl":"https://aoctrl.com/siemens/3VA2440-7MN32-0CB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MN32-0CB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2440-7MN32-0CB0, molded case circuit breaker, 3-pole, 400 A, motor protection version, ETU350M electronic trip unit, 330 kA at 240 V, undervoltage release.","salesMarkdown":"Siemens SENTRON 3VA2440-7MN32-0CB0 is a 3-pole molded case circuit breaker rated 400 A continuous at 40 °C, with an ETU350M electronic trip unit and undervoltage release. It's the motor protection version of the 3VA2 frame. The ETU350M trip unit handles motor protection curves, and the phase failure detection catches a lost leg before the motor cooks. That's a 3-pole frame that fits standard SENTRON mounting — bolt it to the backplate or mount on a DIN rail adapter.","metaTitle":"Siemens 3VA2440-7MN32-0CB0 SENTRON MCCB, 400 A, 3-Pole, Moto","metaDescription":"Siemens SENTRON 3VA2440-7MN32-0CB0 molded case circuit breaker. 400 A rated, 3-pole, motor protection version with ETU350M trip unit. 330 kA at 240 V. Current production. Sourced t","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":"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]":"4.3 in","Width [In]":"5.4 in","Height [In]":"9.8 in","Trip Indicator":"No","Number Of Poles":"3","Product version":"Motor protection","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Communication Function":"No","Phase Failure Detection":"Yes","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"63.3 W","Auxiliary contact version":"2 auxiliary switches HP","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA24407MN320AA0","Design Of The Auxiliary Release":"Undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Tension assignée d'isolement Ui":"800 V","Design Of The Overcurrent Release":"ETU350M","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","Undervoltage Release With Leading Contact":"No","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / lg min.":"0 s","Adjustable response value current / li max.":"6 000 A","Adjustable response value current / li min.":"6 000 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA11","Switching Capacity Class Of The Circuit Breaker":"C","Mechanical Service Life (Switching Cycles) / Typical":"15 000","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=1364624&mlfb=3VA2440-7MN32-0CB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2440-7MN32-0CB0/alternatives.json"},"ai":{"faq":[{"question":"What does the ETU350M trip unit do?","answer":"The ETU350M is an electronic trip unit designed for motor protection. It provides adjustable overload and short-circuit protection with phase failure detection, and works with the undervoltage release to drop the load on power loss."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2440-7MN32-0CB0","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/3VA2440-7MN32-0CB0 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}}