{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN32-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN32-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HN32-0AJ0, molded case circuit breaker, 3-pole, 400 A, ETU350 electronic trip unit, line protection, 187 kA at 240 V, IP40 front.","salesMarkdown":"At 415 V and 440 V the interrupting rating holds at 121 kA; at 500 V it drops to 75.6 kA, and at 690 V to 17 kA. The 400 A rating holds from 40 °C through 50 °C; above that it derates to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. The breaker measures 138 mm wide by 248 mm tall by 110 mm deep. The front face carries an IP40 protection rating — suitable for enclosed panel installation where no water ingress is expected. The ETU350 is an electronic trip unit with adjustable long-time, short-time, instantaneous, and ground-fault protection bands — standard for selective coordination in distribution panels. Maximum power loss is 96 W at rated current, which matters for thermal management inside a sealed enclosure. The breaker has a trip indicator (mechanical flag) for visual confirmation of a trip event. It does not include undervoltage release, communication functions, phase failure detection, or ground-fault monitoring — this is a straightforward line-protection breaker, not a multifunction power monitor.","metaTitle":"Siemens 3VA2340-5HN32-0AJ0 SENTRON MCCB, 400 A, 3-Pole, ETU3","metaDescription":"Siemens SENTRON 3VA2340-5HN32-0AJ0 molded case circuit breaker. 400 A rated, 3-pole, ETU350 trip unit. 187 kA at 240 V. Current 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":"138 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":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","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":"2 auxiliary switches + 1 trip alarm switch HP","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":"3VA2340-5HN32-0AA0","Design of the auxiliary release":"Without auxiliary release","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","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":"3","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","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=200934&mlfb=3VA2340-5HN32-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5HN32-0AJ0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What are the key ratings for 3VA2340-5HN32-0AJ0?","answer":"Rated continuous current Iu is 400 A, rated insulation voltage Ui is 800 V, and interrupting ratings are 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."},{"question":"What is the depth of this MCCB?","answer":"The depth is 110 mm."},{"question":"What is the width of this MCCB?","answer":"The width is 138 mm."},{"question":"Will 3VA2340-5HN32-0AJ0 drop into a panel specified around 3VA2116-5HL32-0AK0 without rewiring?","answer":"No — the 3VA2340 is a 400 A frame with different dimensions and terminal arrangements than the smaller 3VA2116 frame. Panel layout and busbar connections would need to be reworked."},{"question":"What compliance documentation does this breaker carry?","answer":"As a Siemens SENTRON product, it carries CE marking and is designed to IEC 60947-2. Specific RoHS and REACH declarations are available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0AJ0","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/3VA2340-5HN32-0AJ0 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}}