{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0HH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0HH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0HH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0HH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0HH0, molded case circuit breaker, 3-pole, 400 A, line protection, 110 mm depth, 138 mm width, 248 mm height.","salesMarkdown":"The 3VA2340-7HN32-0HH0: Breaking capacity is the headline here: 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 7.5 kA at 690 V. It holds full 400 A up to 50 °C, then drops to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. ## What's in the can — auxiliary hardware The basic switch core is order code 3VA2340-7HN32-0AA0 — that's the bare breaker without the auxiliary hardware. This -0HH0 suffix adds the shunt trip and the switch package. If you're stocking spares, the -0AA0 core plus a separate shunt trip kit is another SKU path, but this pre-assembled variant saves panel-builder wiring time. Dimensions: 110 mm deep, 138 mm wide, 248 mm tall. That's a standard SENTRON 3VA2 frame footprint — it occupies the same cutout and mounting hole pattern as other 3VA2 3-pole breakers in the 400 A class. If you're swapping out an older 3VF or 3VL breaker, check the mounting centers; the 3VA series uses a different baseplate pattern in some frame sizes. Maximum power loss is 96 W at rated current. That's heat that stays inside the enclosure. In a sealed panel with multiple breakers, factor that into the thermal budget — 96 W per pole is negligible per pole, but four of these in a row adds up to nearly 400 W of internal heat. ## Where it lives — environment and compliance The storage minimum of -40 °C means it can sit in a northern shipping container through winter without damage. The part carries a trip indicator and a voltage trigger — the trip indicator gives a visible flag on the breaker face after a fault, and the voltage trigger allows remote status monitoring through the auxiliary contacts. No communication function onboard, so no Modbus or PROFIBUS integration without an external module.","metaTitle":"Siemens 3VA2340-7HN32-0HH0 SENTRON MCCB, 400A, 3-Pole, Line","metaDescription":"Siemens SENTRON 3VA2340-7HN32-0HH0 molded case circuit breaker, 400A continuous, 3-pole, line protection. Breaking capacity 330kA at 240V. Active 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":"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 + 1 trip alarm switch 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":"3VA9688-0BL30","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":"LSI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","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=521920&mlfb=3VA2340-7HN32-0HH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0HH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA2340-7HN32-0HH0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 3VA2340-7HN32-0HH0's listed depth?","answer":"The depth is 110 mm (4.33 in). That's the dimension from the mounting surface to the front of the breaker, excluding any protruding handle or accessory cover."},{"question":"What is 3VA2340-7HN32-0HH0's listed width?","answer":"The width is 138 mm (5.43 in). That's the overall body width for this 3-pole frame; it determines the DIN-rail or mounting-plate spacing needed in the panel."},{"question":"What compliance documentation does this brand provide for 3VA2340-7HN32-0HH0?","answer":"Siemens SENTRON breakers typically carry UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications. RoHS and REACH declarations are available from Siemens documentation. Specific certs for this order code should be verified against the factory certificate of conformance."},{"question":"Will 3VA2340-7HN32-0HH0 drop into a panel that was specified around 3VA1110-5EF32-0AM0 without rewiring?","answer":"No. The 3VA1110-5EF32-0AM0 is a 100 A frame breaker in the 3VA1 series, with different mounting dimensions, busbar spacing, and lug sizes. The 3VA2340 is a 400 A frame — physically larger and electrically incompatible for a direct swap. A panel rework is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0HH0","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/3VA2340-7HN32-0HH0 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}}