{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0AJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0AJ0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0AJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0AJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0AJ0, molded case circuit breaker, 3-pole, 400 A rated current, 330 kA breaking capacity at 240 V AC, line protection design.","salesMarkdown":"It carries a continuous rated current of 400 A at 40 °C — that's the current it can pass continuously without tripping on thermal overload. The 400 A rating holds steady up to 50 °C; above that it derates to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Breaking capacity is the other headline: 330 kA at 240 V AC, 242 kA at 415 V, and 187 kA at 500 V. These numbers tell you this breaker can sit at the main disconnect where fault currents are highest, and coordinate downstream without blowing up. Three poles, line-protection design (not motor-protection — no overload relay built in). The basic switch is order code 3VA2340-7HN32-0AA0; this variant adds the auxiliary and alarm contacts. That's a 3-pole frame that fits standard MCCB mounting footprints — no oddball cutout. ## How it compares to a sibling: 3VA2116-5HL32-0AK0 The 3VA2116-5HL32-0AK0 is a smaller-frame MCCB — 160 A continuous, lower breaking capacity, and a different accessory layout. If your panel was designed around that 160 A frame, the 3VA2340-7HN32-0AJ0 will not drop in without rewiring: the mounting hole pattern and bus-bar spacing differ between frame sizes. The 400 A version is physically larger (248 mm vs. a shorter frame) and needs more clearance for the higher interrupting ratings. Stick with the frame size your panel was built for unless you're doing a full re-design.","metaTitle":"Siemens 3VA2340-7HN32-0AJ0 SENTRON MCCB, 400 A, 3-Pole, 330","metaDescription":"Siemens 3VA2340-7HN32-0AJ0 SENTRON molded case circuit breaker, 400 A continuous, 3-pole, 330 kA at 240 V. Active production. Quoted to order against RFQ.","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":"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 + 1 trip alarm switch HP","Design Of The Auxiliary Release":"Without auxiliary release","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","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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB11","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=464882&mlfb=3VA2340-7HN32-0AJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0AJ0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA2340-7HN32-0AJ0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."},{"question":"What are the key ratings of 3VA2340-7HN32-0AJ0?","answer":"Rated continuous current 400 A at 40 °C, 3-pole, breaking capacity 330 kA at 240 V AC and 242 kA at 415 V AC. It includes 2 auxiliary switches and a trip-alarm switch."},{"question":"Will 3VA2340-7HN32-0AJ0 drop into a panel designed for 3VA2116-5HL32-0AK0?","answer":"No — the 400 A frame is physically larger (248 mm high vs. a smaller 160 A frame) and uses a different mounting pattern. Rewiring and possibly a new enclosure cutout are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0AJ0","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/3VA2340-7HN32-0AJ0 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}}