{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HN32-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HN32-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2340-7HN32-0CH0, molded case circuit breaker, 3-pole, line protection, rated continuous current 400 A, ETU350 electronic trip unit, 330 kA interrupting at 240 V.","salesMarkdown":"The interrupting ratings tell the real story: 330 kA at 240 V, 242 kA at 415 V, 242 kA at 440 V, 187 kA at 500 V, and still 52.5 kA at 690 V. For a 400 A main breaker in an industrial panel, that's the kind of SCCR that keeps the series rating simple. The electronic trip unit is an ETU350, which gives you adjustable long-time, short-time, instantaneous, and ground-fault protection curves. That matters when you're coordinating with downstream feeders and don't want nuisance trips on motor-start inrush. The undervoltage release (UVR) is built in — it drops the breaker if control power fails, which is a common spec for emergency-stop and safety circuits. At 55 °C it's 385 A, at 60 °C it's 370 A, at 65 °C it's 355 A, and at 70 °C it's 340 A. If your panel runs hot, that derating curve is what you use to size the breaker correctly, not the 400 A nameplate. The integrated auxiliary trip is order code 3VA9608-0BB24. Maximum power loss is 98.5 W at rated current — that's the heat you need to vent from the enclosure. It's not a number you see on every listing, but for a panel builder it decides whether you need forced ventilation or a bigger cabinet. Latching endurance is rated at 15,000 operations, which is typical for a main breaker that sees infrequent switching. That covers unheated warehouses and outdoor enclosures in most climates. The -40 °C storage minimum is the limit for cold-weather shipping and storage — don't let it sit in a frozen truck for weeks.","metaTitle":"Siemens 3VA2340-7HN32-0CH0 SENTRON MCCB, 400 A, 3-Pole, Line","metaDescription":"Siemens SENTRON 3VA2340-7HN32-0CH0 molded case circuit breaker, 400 A rated continuous current, 3-pole, line protection, ETU350 release, 330 kA at 240 V. Current production. Quoted","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","at 240 V":"330 kA","at 415 V":"242 kA","at 440 V":"242 kA","at 500 V":"187 kA","at 690 V":"52.5 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","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"No","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"98.5 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"400 A","Rated insulation voltage Ui":"800 V","Of The Supplied Basic Switch":"3VA2340-7HN32-0AA0","Design of the auxiliary release":"Undervoltage release (UVR)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9608-0BB24","Design of the overcurrent release":"ETU350","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"17","Adjustable response value time / tr min.":"0.5","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"400 A","Adjustable response value current / li max.":"4 000 A","Adjustable response value current / li min.":"4 000 A","Adjustable response value current / lr min.":"160 A","Adjustable response value current / Isd max.":"0 A","Adjustable response value current / Isd min.":"0 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LSI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"C","Max. rated operational current of the frame size":"400 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"Lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"35 x 10","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"20 x 1"}},"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=225467&mlfb=3VA2340-7HN32-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HN32-0CH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA2340-7HN32-0CH0 and how is it quoted?","answer":"This MCCB 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 price and lead time."},{"question":"What are the key ratings of 3VA2340-7HN32-0CH0?","answer":"Rated continuous current Iu is 400 A, rated insulation voltage Ui is 800 V, interrupting capacity is 330 kA at 240 V and 242 kA at 415 V. It's a 3-pole line-protection MCCB with an ETU350 electronic trip unit and built-in undervoltage release."},{"question":"What is the depth of 3VA2340-7HN32-0CH0?","answer":"The depth is 110 mm. Combined with a width of 138 mm and height of 248 mm, it fits standard 3-pole MCCB mounting patterns and 300 mm deep enclosures."},{"question":"Will 3VA2340-7HN32-0CH0 drop into a panel specified for 3VA1112-5EF32-0CA0?","answer":"No, it will not. The 3VA2340 is a 400 A frame on a different physical footprint than the 3VA1112 series. The 3VA1112 is a smaller frame (typically 100-160 A class) with different mounting dimensions and busbar spacing. You would need to rework the panel mounting and bus connections."},{"question":"What compliance documentation does Siemens provide for this MCCB?","answer":"Siemens SENTRON 3VA series MCCBs carry IEC 60947-2 certification and typically include CE, UKCA, and EAC markings. RoHS and REACH declarations are available from Siemens' documentation portal. Specific UL/CSA listings depend on the exact variant — the standard 3VA line is UL 489 listed for North American installations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HN32-0CH0","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/3VA2340-7HN32-0CH0 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}}