{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HM32-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HM32-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HM32-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HM32-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2, molded case circuit breaker, 3-pole, 400 A continuous, adjustable thermal-magnetic trip 600-4000 A, line protection, 110 x 138 x 248 mm.","salesMarkdown":"## Siemens 3VA2340-7HM32-0AA0 — 400 A SENTRON MCCB with adjustable trip The Siemens 3VA2340-7HM32-0AA0 is a SENTRON 3VA2 molded case circuit breaker rated 400 A continuous at 40 °C, with an adjustable thermal-magnetic trip unit covering 600 A minimum to 4 000 A maximum (full-scale value 400 A, initial setting 80 A). This is a line-protection design (not motor-protection curve), 3-pole, with no undervoltage release, no voltage trip, and no communication function. The interrupting ratings scale with system voltage: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V. Continuous current holds at 400 A up to 50 °C ambient, then derates linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, 340 A at 70 °C. Maximum power loss is 96 W at full load. The breaker measures 110 mm deep, 138 mm wide, 248 mm high. ## Ground-fault and environmental","metaTitle":"Siemens 3VA2340-7HM32-0AA0 SENTRON MCCB, 400 A, 600-4000 A t","metaDescription":"Siemens 3VA2340-7HM32-0AA0 SENTRON molded case circuit breaker, 400 A continuous, adjustable trip 600-4000 A, 3-pole, line protection. Active production. Sourced to order.","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","Maximum":"4 000 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":"7.5 kA","at 40 °C":"400 A","at 45 °C":"400 A","at 50 °C":"400 A","at 55 °C":"385 A","at 60 °C":"370 A","at 65 °C":"355 A","at 70 °C":"340 A","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","Initial Value":"80 A","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Full-Scale Value":"400 A","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":"96 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Summation current formation L-conductor","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU330","protection class IP / on the front":"IP40","Product Function / Grounding Protection":"Yes","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LIG","number of CO contacts / for auxiliary contacts":"0","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/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=161131&mlfb=3VA2340-7HM32-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HM32-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-7HM32-0AA0 and how do I get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is 3VA2340-7HM32-0AA0's listed depth (110 mm) on this component line?","answer":"The depth is 110 mm (4.33 in). Width is 138 mm (5.43 in), height 248 mm (9.76 in)."},{"question":"What are the interrupting ratings at different voltages?","answer":"330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V. The 690 V figure is the binding limit for that voltage class."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HM32-0AA0","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/3VA2340-7HM32-0AA0 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}}