{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6HN32-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6HN32-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6HN32-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN32-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6HN32-0CA0, molded case circuit breaker, 3-pole, 400 A continuous, 242 kA interrupting at 240 V AC, with undervoltage release, line protection design.","salesMarkdown":"## 400 A MCCB with undervoltage release — SENTRON 3VA2 platform The Siemens SENTRON 3VA2340-6HN32-0CA0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, with a maximum interrupting capacity of 242 kA at 240 V AC. The 400 A frame size means it handles main feeder or large motor branch circuits in 400 V to 690 V systems. The interrupting ratings step down from 242 kA at 240 V to 187 kA at 415/440 V, 121 kA at 500 V, and 7.5 kA at 690 V — so the available fault current at your service voltage determines whether this breaker holds the SCCR without cascading upstream. Thermal derating starts above 50 °C: still 400 A at 50 °C, then 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. The breaker measures 248 mm high, 138 mm wide, and 110 mm deep — a standard 3-pole MCCB footprint for the SENTRON 3VA2 family. Verify the mounting hole pattern and bus bar spacing against your existing panel layout; the 138 mm width typically matches a 3-pole base on 60 mm centers. Maximum power loss is 98.5 W at rated current — factor this into enclosure thermal calculations, especially in a sealed or high-density cabinet.","metaTitle":"Siemens 3VA2340-6HN32-0CA0 SENTRON MCCB, 400A, 3-Pole, 242kA","metaDescription":"Siemens SENTRON 3VA2340-6HN32-0CA0 molded case circuit breaker, 400A continuous, 3-pole, 242kA interrupting at 240V. Active production. Quoted to order against RFQ.","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":"4 000 A","Minimum":"4 000 A","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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","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":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"98.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2340-6HN32-0AA0","Design Of The Auxiliary Switch":"Without","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","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","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":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"H","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=349271&mlfb=3VA2340-6HN32-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN32-0CA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting capacity of 3VA2340-6HN32-0CA0 at 415 V?","answer":"At 415 V AC the interrupting capacity is 187 kA, matching the rating at 440 V. At 500 V it drops to 121 kA, and at 690 V to 7.5 kA."},{"question":"Does this MCCB include an undervoltage release?","answer":"Yes, the design includes an undervoltage release (UVR) as the auxiliary release — it will trip the breaker if the control voltage drops below the dropout threshold."},{"question":"Where can I buy 3VA2340-6HN32-0CA0 and how is it quoted?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Submit a request for current pricing and availability — volume pricing is negotiable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6HN32-0CA0","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/3VA2340-6HN32-0CA0 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}}