{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN32-0KF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN32-0KF0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0KF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0KF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2, molded case circuit breaker, 3-pole, 400 A, ETU350 electronic trip unit, line protection, 187 kA at 240 V, 121 kA at 415 V.","salesMarkdown":"## MCCB with ETU350 — interrupting capacity and thermal derating The Siemens 3VA2340-5HN32-0KF0 is a SENTRON 3VA2 molded case circuit breaker rated for 400 A continuous current at 40 °C, 45 °C, and 50 °C — no derating needed up to that point. Above 50 °C the curve steps down: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Interrupting capacity varies sharply with system voltage: 187 kA at 240 V, 121 kA at 415 V, 55 kA at 440 V, 36 kA at 500 V, and 7.5 kA at 690 V. The electronic trip unit is an ETU350, adjustable for long-time delay (tr) from 0.5 s to 17 s and short-time delay (tsd) from 0.02 s to 0.4 s. That range gives selectivity flexibility downstream — you can set tsd long enough to ride through a feeder breaker's clearing time without nuisance tripping. The 138 mm width (5.4 in) is a three-pole MCCB footprint. Front-face protection is IP40 — suitable for a closed electrical enclosure where tools are required to access live parts. ## Electrical ratings and operating limits Maximum power loss is 96 W at rated current. Mechanical endurance is 20,000 operations. The ETU350 is a basic electronic trip with adjustable time-current curves but no Modbus or PROFIBUS interface. If remote trip indication or energy metering is needed, a different 3VA2 variant with the communication option would be required.","metaTitle":"Siemens 3VA2340-5HN32-0KF0 SENTRON MCCB, 400 A, 3-Pole, ETU3","metaDescription":"Siemens 3VA2340-5HN32-0KF0 SENTRON molded case circuit breaker, 400 A continuous, 3-pole, ETU350 release, 187 kA at 240 V. Current lifecycle. 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","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"55 kA","at 500 V":"36 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","Width [in]":"5.4 in","Height [in]":"9.8 in","Number of poles":"3","Product version":"Line protection","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"20 000","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","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Ground fault monitoring version":"Without","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","Adjustable response value time / tsd max.":"0.4 s","Adjustable response value time / tsd min.":"0.02 s","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.":"4 000 A","Adjustable response value current / Isd min.":"600 A","Neutral conductors / upgradeable/retrofittable":"No","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=912966&mlfb=3VA2340-5HN32-0KF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0KF0/alternatives.json"},"ai":{"faq":[{"question":"What trip unit does 3VA2340-5HN32-0KF0 use?","answer":"An ETU350 electronic trip unit with adjustable long-time delay (tr) from 0.5 s to 17 s and short-time delay (tsd) from 0.02 s to 0.4 s."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0KF0","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/3VA2340-5HN32-0KF0 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}}