{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HL42-0CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HL42-0CA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HL42-0CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HL42-0CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HL42-0CA0, molded case circuit breaker, 400 A continuous, 4-pole, 187 kA breaking at 240 V, line protection, undervoltage release.","salesMarkdown":"The Siemens SENTRON 3VA2340-5HL42-0CA0 is a 4-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, with an interrupting capacity of 187 kA at 240 V AC and 121 kA at 415/440 V. The continuous rating holds flat at 400 A up to 50 °C, then derates to 385 A at 55 °C and 340 A at 70 °C, so you don't lose headroom unless the cabinet runs hot. At 240 V it's rated 187 kA, at 415 V and 440 V it's 121 kA, at 500 V it drops to 75.6 kA, and at 690 V it's 7.5 kA. That steep roll-off above 500 V means this breaker is optimized for 400/480 V distribution — not for 690 V motor circuits. The minimum breaking capacity is 600 A, so it's not for tiny branch circuits. That 184 mm width is a 4-pole frame — it needs a 4-module-wide cutout in a panel or a dedicated MCCB mounting base.","metaTitle":"Siemens 3VA2340-5HL42-0CA0 SENTRON MCCB, 400 A, 4-pole, 187","metaDescription":"Siemens SENTRON 3VA2340-5HL42-0CA0 molded case circuit breaker, 400 A continuous, 4-pole, 187 kA breaking at 240 V. Active production. Sourced 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":"184 mm","Height":"248 mm","Maximum":"4 000 A","Minimum":"600 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":"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]":"7.24 in","Height [In]":"9.76 in","Trip Indicator":"No","Number Of Poles":"4","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":"3VA2340-5HL42-0AA0","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":"ETU320","protection class IP / on the front":"IP40","design of the N-conductor protection":"adjustable OFF; 50%; 100%","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":"LI","number of CO contacts / for auxiliary contacts":"0","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/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=255184&mlfb=3VA2340-5HL42-0CA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HL42-0CA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5HL42-0CA0 and how do I get a price?","answer":"Sourced to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."},{"question":"What is 3VA2340-5HL42-0CA0's listed depth?","answer":"110 mm (4.33 in)."},{"question":"What is 3VA2340-5HL42-0CA0's listed width?","answer":"184 mm (7.24 in)."},{"question":"Will 3VA2340-5HL42-0CA0 drop into a panel specified around 3VA2116-5HL32-0AK0 without rewiring?","answer":"No — the 3VA2340-5HL42-0CA0 is a 400 A, 4-pole frame; the 3VA2116-5HL32-0AK0 is a smaller frame. Physical dimensions and busbar spacing differ; panel cutout and wiring will need rework."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HL42-0CA0","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/3VA2340-5HL42-0CA0 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}}