{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6HN32-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6HN32-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6HN32-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN32-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6HN32-0KA0, 3-pole molded case circuit breaker, 400 A rated continuous current Iu, ETU350 electronic trip unit, line protection version, 242 kA interrupting at 240 V.","salesMarkdown":"## What this 3VA2340-6HN32-0KA0 brings to the panel The interrupting ratings are serious: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V. The ETU350 trip unit gives you adjustable long-time, short-time, and instantaneous protection curves, plus ground-fault capability if you add the right module (this variant ships without ground-fault monitoring). That's the standard electronic trip for this frame size — field-adjustable, so you can coordinate with downstream breakers on site. ## Thermal derating — the number that matters in a real panel The 400 A rating holds at 40 °C, 45 °C, and 50 °C — no derating needed in a typical 40 °C switchroom. At 55 °C it drops to 385 A, at 60 °C to 370 A, at 65 °C to 355 A, and at 70 °C to 340 A. If you're packing this into a non-ventilated enclosure or a hot corner of a MCC lineup, that's the curve to size against. Maximum power loss is 96 W — not trivial; that heat has to leave the enclosure. Factor it into your thermal budget if you're stacking multiple 400 A frames in one section. ## Auxiliaries and accessories — what's on board The basic switch assembly is order code 3VA2340-6HN32-0AA0, and the integrated auxiliary trip module is 3VA9688-0BL32 — useful to know if you're stocking spares or replacing a damaged subassembly in the field. No undervoltage release on this variant, and no communication module or phase-failure detection built in. Mechanical endurance is 15,000 operations — that's typical for a fixed-mounted MCCB in a distribution board, not a switching-duty contactor. The trip indicator and voltage trigger are both present, which helps during commissioning troubleshooting.","metaTitle":"3VA2340-6HN32-0KA0 SENTRON MCCB, 400 A, 3-pole, ETU350, line","metaDescription":"Siemens SENTRON 3VA2340-6HN32-0KA0 molded case circuit breaker, 400 A continuous, 3-pole, ETU350 trip unit, 242 kA at 240 V. 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":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 kA","at 690 V":"40 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":"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":"2 auxiliary switches + 1 trip alarm switch + 1 electrical alarm switch 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":"3VA2340-6HN32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","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":"4","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","Switching capacity class of the circuit breaker":"H","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=61959&mlfb=3VA2340-6HN32-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN32-0KA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3VA2340-6HN32-0KA0 at 415 V?","answer":"187 kA at 415 V, and the same at 440 V. At 240 V it's 242 kA, at 500 V it's 121 kA, and at 690 V it's 40 kA."},{"question":"What trip unit does this MCCB use?","answer":"It uses the ETU350 electronic trip unit, which is field-adjustable for long-time, short-time, and instantaneous protection. This variant ships without ground-fault monitoring."},{"question":"Where can I buy 3VA2340-6HN32-0KA0 and how is it quoted?","answer":"It's sourced and quoted to order through independent distribution against an RFQ. Availability and current pricing are confirmed at the time of quotation — no stock or price figures are published here."},{"question":"What auxiliary contacts come with this breaker?","answer":"It ships with 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (the HQ configuration), plus a shunt trip (STL) for remote tripping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6HN32-0KA0","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/3VA2340-6HN32-0KA0 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}}