{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0BL0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0BL0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0BL0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0BL0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 3VA2340-7HN32-0BL0, 3-pole molded case circuit breaker, 400 A continuous, line protection, with undervoltage release and auxiliary switches, 110 x 138 x 248 mm.","salesMarkdown":"The SENTRON 3VA2340-7HN32-0BL0 is a 3-pole molded case circuit breaker (MCCB) rated for 400 A continuous current, built for line protection in industrial distribution panels. It carries a full-rated current of 400 A all the way up to 50 °C ambient, then derates stepwise to 340 A at 70 °C — so in a hot panel you still get nearly full rating. Breaking capacity is 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 7.5 kA at 690 V. That 242 kA at 415 V is what you need for a high-fault utility feed in a plant main; the 690 V number drops off sharply, so this isn't your breaker for a 690 V motor branch without checking the available fault current. ## Built-in auxiliaries and releases — what's inside the case This breaker ships with a factory-fitted set of auxiliary switches: 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ type). It also includes an undervoltage release (UVR). That means you get remote status and trip indication out of the box — no separate accessory ordering for basic panel feedback. The UVR will drop the breaker if control voltage is lost, which is standard for emergency-stop or undervoltage protection schemes. ## Panel fit and handling Dimensions are 110 mm deep, 138 mm wide, 248 mm tall.","metaTitle":"SENTRON 3VA2340-7HN32-0BL0 3-pole Molded Case Breaker, 400 A","metaDescription":"SENTRON 3VA2340-7HN32-0BL0 molded case circuit breaker, 3-pole, 400 A rated, 330 kA breaking at 240 V. Line protection, 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","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":"Yes","Number Of Poles":"3","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"98.5 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 + 1 trip alarm switch + 1 electrical alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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":"3VA9608-0BB11","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":"4","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB22","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=311552&mlfb=3VA2340-7HN32-0BL0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0BL0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-7HN32-0BL0 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 price."},{"question":"Will 3VA2340-7HN32-0BL0 drop into a panel specified around 5SQ2370-2YA05?","answer":"No, the 5SQ2370-2YA series uses a different physical frame and mounting pattern. The 3VA2 is a standard 3-pole MCCB footprint (138 mm wide, 248 mm tall, 110 mm deep), so a panel designed for the 5SQ would require modification to accept this breaker."},{"question":"What is the breaking capacity of this breaker at 415 V?","answer":"At 415 V the breaking capacity is 242 kA. At 440 V it is also 242 kA, dropping to 187 kA at 500 V and 7.5 kA at 690 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0BL0","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/3VA2340-7HN32-0BL0 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}}