{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0DH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0DH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0DH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0DH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0DH0 molded case circuit breaker, 400 A, 3-pole, line protection with undervoltage release, 110 mm depth.","salesMarkdown":"It is a 3-pole unit designed for line protection, carrying a 330 kA interrupting rating at 240 V and 242 kA at 415 V, which makes it suitable for high-fault-current industrial distribution panels where selectivity with upstream gear is a requirement. For a panel running warm — say 55 °C ambient — you are still at 385 A, which is a 3.75% margin below the label. That matters if your continuous load is right at 400 A and the enclosure runs hot; you need the thermal curve for a proper coordination study. At 240 V the breaker clears 330 kA symmetrical. At 500 V it drops to 187 kA, and at 690 V it clears 7.5 kA. For a 480 V line-to-line panel (common in North America) the relevant figure is the 500 V rating — 187 kA — which still covers most utility-fault scenarios. ## Built-in undervoltage release and auxiliary switch complement That is enough for a PLC input card to distinguish between a manual-off and a trip event without extra interposing relays. ## Mechanical footprint: 110 mm deep, 138 mm wide The unit measures 110 mm deep, 138 mm wide, and 248 mm tall. The manufacturer lists this part as current-production (active lifecycle stage). That means it is still in the standard catalog and not subject to a last-time-buy notice.","metaTitle":"Siemens 3VA2340-7HN32-0DH0 MCCB, 400A, 3-Pole, Line Protecti","metaDescription":"Siemens SENTRON 3VA2340-7HN32-0DH0 molded case circuit breaker, 400 A continuous, 3-pole, 110 mm depth. Line protection design with undervoltage release. Sourced to order against R","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 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":"3VA9608-0BB25","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=96636&mlfb=3VA2340-7HN32-0DH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0DH0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3VA2340-7HN32-0DH0 at 240 V?","answer":"The breaker clears 330 kA symmetrical at 240 V, 242 kA at 415 V, and 187 kA at 500 V. At 690 V the rating drops to 7.5 kA."},{"question":"Where can I buy 3VA2340-7HN32-0DH0 and get current pricing?","answer":"This part is sourced to order against an RFQ through our independent distribution channel. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time estimate."},{"question":"Does 3VA2340-7HN32-0DH0 include an undervoltage release?","answer":"Yes — it ships with an integrated undervoltage release (UVR) plus two auxiliary switches and one trip alarm switch (HQ)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0DH0","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/3VA2340-7HN32-0DH0 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}}