{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-5HN32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-5HN32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-5HN32-0DC0, 3-pole molded case circuit breaker, 400 A rated continuous current Iu, 187 kA breaking at 240 V, ETU350 electronic trip unit, undervoltage release (UVR), line protection version.","salesMarkdown":"## 400 A MCCB, 187 kA interrupt — this one's built for high-fault mains Siemens SENTRON 3VA2340-5HN32-0DC0 is a 3-pole molded case circuit breaker rated 400 A continuous (Iu) with a 187 kA interrupting capacity at 240 V AC. That breaking figure drops to 121 kA at 415/440 V, 75.6 kA at 500 V, and 17 kA at 690 V — so it's sized for the main incomer where fault currents are brutal, not a downstream feeder. Derating starts at 55 °C (385 A), then 370 A at 60 °C, 355 A at 65 °C, 340 A at 70 °C. That's a shallow curve — the breaker keeps 85 % of rating at the top end, so it's not forcing a upsized frame for a hot panel. Electronic trip unit is the ETU350 — line protection version. No voltage trigger, no phase failure detection, no communication module. Undervoltage release (UVR) is fitted as the auxiliary release, plus 2 HQ auxiliary switches. ## Mounting dimensions and panel fit Maximum power dissipation at rated load is 98.5 W. That's per breaker — factor into panel thermal budget. Latching endurance is 15 000 operations — not a daily-switching device; it's a protection device that stays closed.","metaTitle":"Siemens 3VA2340-5HN32-0DC0 SENTRON MCCB, 400 A, 187 kA","metaDescription":"Siemens SENTRON 3VA2340-5HN32-0DC0 molded case circuit breaker, 400 A rated, 187 kA breaking at 240 V, 3-pole, ETU350 release, UVR included. Current production. Quoted to order.","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":"No","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":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"98.5 W","Auxiliary contact version":"2 auxiliary switches HQ","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":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB25","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":"2","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","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=369480&mlfb=3VA2340-5HN32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-5HN32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-5HN32-0DC0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of this MCCB at different voltages?","answer":"187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, 17 kA at 690 V."},{"question":"Does this breaker include an undervoltage release?","answer":"Yes — the auxiliary release is an undervoltage release (UVR). It also carries 2 HQ auxiliary switches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-5HN32-0DC0","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/3VA2340-5HN32-0DC0 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}}