{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-6HL32-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-6HL32-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-6HL32-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HL32-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-6HL32-0HC0, molded case circuit breaker, 3-pole, 400 A rated continuous current, 242 kA breaking capacity at 240 VAC, line protection design with shunt trip release.","salesMarkdown":"## SENTRON 3VA2340-6HL32-0HC0 — 400 A MCCB with Shunt Trip for Line Protection The Siemens SENTRON 3VA2340-6HL32-0HC0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, with a maximum breaking capacity of 242 kA at 240 VAC. The 400 A rating holds flat through 50 °C, then derates to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C — so in a warm enclosure you lose about 15 % of the headroom by 70 °C. Breaking capacity varies sharply with system voltage: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 7.5 kA at 690 V. The 242 kA figure at 240 V gives ample headroom for high-fault service-entrance applications on 240 V delta or 277/480 V wye systems where the line-to-ground fault current can exceed 100 kA. The 110 mm depth (4.33 in) fits typical 200 mm deep enclosures with clearance for rear-connected busbars. The shunt trip (STL) and two HQ auxiliary switches are factory-installed; no field wiring of separate accessories is needed for basic remote trip and status. ## Thermal Management and Power Loss Maximum power loss is 96 W at rated load. In a sealed enclosure with multiple breakers ganged, that heat must be considered in the thermal budget — a 400 A frame dumping nearly 100 W can raise internal ambient above the 50 °C threshold where derating begins.","metaTitle":"Siemens 3VA2340-6HL32-0HC0 SENTRON MCCB, 400 A, 242 kA at 24","metaDescription":"Siemens SENTRON 3VA2340-6HL32-0HC0 molded case circuit breaker, 3-pole, 400 A rated, 242 kA breaking capacity at 240 VAC. Line protection design with shunt trip. Current production","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":"600 A","at 240 V":"242 kA","at 415 V":"187 kA","at 440 V":"187 kA","at 500 V":"121 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":"3VA2340-6HL32-0AA0","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":"ETU320","protection class IP / on the front":"IP40","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL30","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":"LI","number of CO contacts / for auxiliary contacts":"2","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching Capacity Class Of The Circuit Breaker":"H","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=355825&mlfb=3VA2340-6HL32-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-6HL32-0HC0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3VA2340-6HL32-0HC0?","answer":"It is a 3-pole MCCB rated 400 A continuous at 40 °C, with a breaking capacity of 242 kA at 240 VAC, 187 kA at 415/440 V, 121 kA at 500 V, and 7.5 kA at 690 V. It includes a shunt trip release and two HQ auxiliary switches."},{"question":"Where can I buy 3VA2340-6HL32-0HC0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the physical dimensions of 3VA2340-6HL32-0HC0?","answer":"The dimensions are 248 mm high, 138 mm wide, and 110 mm deep (9.76 in × 5.43 in × 4.33 in)."},{"question":"Does 3VA2340-6HL32-0HC0 include a shunt trip?","answer":"Yes, it is equipped with a shunt trip (STL) release and two HQ auxiliary switches as standard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-6HL32-0HC0","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/3VA2340-6HL32-0HC0 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}}