{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0KL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0KL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0KL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0KL0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0KL0, molded case circuit breaker, 3-pole, 400 A, line protection, ETU350 electronic trip unit, breaking capacity 330 kA at 240 V.","salesMarkdown":"## 400 A MCCB with ETU350 — selectivity and SCCR headroom The Siemens SENTRON 3VA2340-7HN32-0KL0 is a 3-pole molded case circuit breaker rated 400 A continuous, fitted with the ETU350 electronic trip unit. It is designated for line protection and carries a breaking capacity of 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 7.5 kA at 690 V — figures that define its fault-interruption capability across common distribution voltages. The 400 A rating holds up to 50 °C ambient; above that it derates linearly to 340 A at 70 °C — a curve to check if the breaker sits in a warm enclosure or near other heat sources. Dimensions are 248 mm high, 138 mm wide, 110 mm deep. The breaker mounts on a panel or in an enclosure via the standard SENTRON 3VA footprint. Auxiliary contact configuration includes 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch — enough for remote status indication without an add-on module. The base switch variant is 3VA2340-7HN32-0AA0. ## Electrical ratings and compliance Maximum power loss is 96 W. Operating temperature range is -25 °C to 70 °C; storage range -40 °C to 80 °C.","metaTitle":"Siemens 3VA2340-7HN32-0KL0 SENTRON MCCB, 400 A, 3-Pole, ETU3","metaDescription":"Siemens SENTRON 3VA2340-7HN32-0KL0 molded case circuit breaker, 400 A, 3-pole, line protection, ETU350 trip unit. Breaking capacity 330 kA at 240 V. Current production. Sourced to","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":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 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","Depth [In]":"4.33 in","Width [In]":"5.43 in","Height [In]":"9.76 in","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","Undervoltage Release":"No","Communication Function":"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 insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2340-7HN32-0AA0","Courant permanent assigné Iu":"400 A","Ground-Fault Monitoring Version":"Without","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","reference code / acc. to IEC 81346-2":"Q","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","Undervoltage Release With Leading Contact":"No","Product Extension / Optional / Motor Drive":"Yes","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"4 000 A","Neutral conductors / upgradeable/retrofittable":"No","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","Switching Capacity Class Of The Circuit Breaker":"C","Max. rated operational current of the frame size":"400 A","Mechanical Service Life (Switching Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"on both sides nut keeper kit","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 mm","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1 mm"}},"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=3342&mlfb=3VA2340-7HN32-0KL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0KL0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3VA2340-7HN32-0KL0 at 415 V?","answer":"242 kA at 415 V and 440 V, with 330 kA at 240 V, 187 kA at 500 V, and 7.5 kA at 690 V."},{"question":"What trip unit does this MCCB use?","answer":"The ETU350 electronic trip unit, supporting adjustable long-time, short-time, instantaneous, and ground-fault protection curves."},{"question":"Where can I buy 3VA2340-7HN32-0KL0 and how is it quoted?","answer":"It is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 3VA2340-7HN32-0KL0 drop into a panel specified for 3VA2110-7HK42-0AA0?","answer":"No — the 3VA2110-7HK42-0AA0 is a lower-current variant with a different frame size and trip unit. The 3VA2340-7HN32-0KL0 is a 400 A frame; rewiring and possibly bus-bar rework are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0KL0","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/3VA2340-7HN32-0KL0 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}}