{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6HN32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6HN32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6HN32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6HN32-0DC0, molded case circuit breaker (MCCB), 3-pole, 400 A rated continuous current, ETU350 electronic trip unit, line protection, 242 kA breaking capacity at 240 V.","salesMarkdown":"At 415 V and 440 V it still holds 187 kA, dropping to 40 kA at 690 V, so verify the available fault current at your system voltage. The 400 A rating holds flat from 40 °C through 50 °C ambient; above that it derates to 385 A at 55 °C and 340 A at 70 °C, which matters for sealed enclosures or high-ambient machine bays. ## Line protection version — what it guards This is the line protection variant, meaning the ETU350 is configured for cable and busbar protection rather than motor or generator protection. No communication function, no ground fault monitoring, no phase failure detection — it's a straightforward thermal-magnetic + electronic trip breaker for distribution feeder duty. ## Panel integration — footprint and auxiliaries At 138 mm wide, 248 mm tall, and 110 mm deep, this MCCB fits standard SENTRON 3VA drawout or fixed-mount footprints. The two HQ auxiliary switches provide form-C contacts for remote status — one for open/closed, one for tripped, typical for a distribution breaker. The undervoltage release will drop the breaker on loss of control voltage; if your application doesn't require UVR, factor that into the control wiring because the release coil draws continuously when the breaker is closed. Maximum power loss is 98.5 W — account for that heat in a sealed enclosure derating calculation.","metaTitle":"Siemens 3VA2340-6HN32-0DC0 SENTRON MCCB, 400 A, 242 kA","metaDescription":"Siemens SENTRON 3VA2340-6HN32-0DC0 molded case circuit breaker, 400 A rated continuous current, 242 kA breaking capacity at 240 V. ETU350 electronic trip unit, line protection. Sou","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":"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":"3VA2340-6HN32-0AA0","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":"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=424116&mlfb=3VA2340-6HN32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HN32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-6HN32-0DC0 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time."},{"question":"What is the breaking capacity of 3VA2340-6HN32-0DC0 at different voltages?","answer":"242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V."},{"question":"Does 3VA2340-6HN32-0DC0 include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) integrated and two HQ auxiliary switches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6HN32-0DC0","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/3VA2340-6HN32-0DC0 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}}