{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN42-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN42-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HN42-0HA0, molded case circuit breaker, 4-pole, 400 A rated continuous current, line protection, ETU350 overcurrent release, shunt trip, breaking capacity 187 kA at 240 V.","salesMarkdown":"It carries a breaking capacity of 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — these are the short-circuit ratings that determine whether this breaker clears a fault without upstream coordination failure. The overcurrent release is an ETU350 electronic trip unit, and the auxiliary release is a shunt trip (STL). Above that, it derates: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Maximum power loss is 96 W. The breaker measures 184 mm wide, 248 mm high, and 110 mm deep. These dimensions govern the mounting footprint in the switchboard — the 184 mm width is the critical number for multi-breaker lineup spacing. The 110 mm depth includes the case body; verify projection past the mounting plane against enclosure depth.","metaTitle":"Siemens 3VA2340-5HN42-0HA0 SENTRON MCCB, 400 A, 4-Pole, 187","metaDescription":"Siemens SENTRON 3VA2340-5HN42-0HA0 molded case circuit breaker, 400 A rated, 4-pole, line protection. Breaking capacity 187 kA at 240 V. ETU350 release, shunt trip. Current product","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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"121 kA","at 500 V":"75.6 kA","at 690 V":"17 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","Trip indicator":"No","Number of poles":"4","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"96 W","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2340-5HN42-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL30","Design of the overcurrent release":"ETU350","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"400 A","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"4 000 A","Adjustable response value current / lr min.":"160 A","Adjustable response value current / Isd max.":"0 A","Adjustable response value current / Isd min.":"0 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LSI","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"400 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","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/c1b3b6c5f6d67465025ac41848ceb75e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=224215&mlfb=3VA2340-5HN42-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN42-0HA0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2340-5HN42-0HA0 at 415 V?","answer":"121 kA at 415 V, and the same at 440 V."},{"question":"What overcurrent release does this MCCB use?","answer":"It uses an ETU350 electronic trip unit."},{"question":"Where can I buy 3VA2340-5HN42-0HA0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN42-0HA0","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/3VA2340-5HN42-0HA0 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}}