{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0KC0, molded case circuit breaker, 3-pole, 400 A, 330 kA at 240 V, with shunt trip and 2 auxiliary switches.","salesMarkdown":"Its interrupting capacity hits 330 kA at 240 V AC, tapering to 242 kA at 415 V and 7.5 kA at 690 V — so at typical 400 V class supply voltages it clears faults well into the high-fault-current range without cascading upstream breakers. The unit ships with a factory-installed shunt trip release and two HQ auxiliary switches, making it ready for remote trip and status feedback without additional wiring modifications. Above that it derates linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, 340 A at 70 °C. Maximum power loss is 96 W, which factors into enclosure ventilation sizing. ## Physical fit in the panel That depth includes the breaker body; the shunt trip and auxiliary switches add no extra projection beyond the standard 3VA2340 form factor. ## What the built-in accessories mean for the circuit The shunt trip (STL) release allows a remote signal — from an emergency-stop button, a fire-alarm relay, or a PLC digital output — to open the breaker independently of the overcurrent trip mechanism. The two HQ auxiliary switches provide form-C contacts that mirror the main contact position, so a control system knows whether the breaker is open or closed.","metaTitle":"Siemens 3VA2340-7HN32-0KC0 SENTRON MCCB, 400 A, 3-Pole, 330","metaDescription":"Siemens SENTRON 3VA2340-7HN32-0KC0 molded case circuit breaker, 400 A continuous, 3-pole, 330 kA interrupting at 240 V. Current lifecycle. Sourced to order. Request quote.","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","Maximum":"4 000 A","Minimum":"4 000 A","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":"No","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"96 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA2340-7HN32-0AA0","Design Of The Auxiliary Switch":"2 auxiliary switches HQ","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"400 A","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"ETU350","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL33","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","reference code / according to IEC 81346-2":"Q","Continuous Current / Rated Value / Maximum":"400 A","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LSI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"C","Mechanical Service Life (Operating 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"}},"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=78447&mlfb=3VA2340-7HN32-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0KC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-7HN32-0KC0 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 and landed cost."},{"question":"What is the depth of 3VA2340-7HN32-0KC0?","answer":"The depth is 110 mm, which is the body depth including the breaker housing. The shunt trip and auxiliary switches do not increase the projection beyond the standard 3VA2340 footprint."},{"question":"Will 3VA2340-7HN32-0KC0 drop into a panel designed for 3VA1110-5ED36-0AC0?","answer":"No — the 3VA2340 frame is physically larger (138 mm wide vs the 3VA1110 frame) and rated for 400 A versus the 3VA1110's lower current class. The mounting hole pattern, bus-bar spacing, and enclosure cut-out differ. A panel designed for a 3VA1110 will need rework to accept this breaker."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0KC0","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/3VA2340-7HN32-0KC0 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}}