{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA2340-7HL32-0KA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA2340-7HL32-0KA0","canonicalUrl":"https://aoctrl.com/siemens/3VA2340-7HL32-0KA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HL32-0KA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA2, molded case circuit breaker, 3-pole, 400 A, line protection, ETU320 electronic trip unit, shunt trip (STL), 110 mm depth, 138 mm width, 248 mm height.","salesMarkdown":"The Siemens 3VA2340-7HL32-0KA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 400 A continuous current (Iu) at 40 °C, configured as a 3-pole line-protection device with an ETU320 electronic overcurrent release and a factory-integrated shunt trip (STL). This is the version with the shunt trip already built in — the basic switch is order code 3VA2340-7HL32-0AA0, and the auxiliary trip module is 3VA9688-0BL33. No auxiliary contact block or undervoltage release is fitted from the factory. Rated insulation voltage Ui is 800 V, and the interrupting ratings span 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 52.5 kA at 690 V — figures that cover high-fault utility feeds and transformer secondaries without cascading upstream. ## Derating and thermal budget Above that, it derates: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Maximum power loss is 96 W at rated load. That's the heat the enclosure must vent; factor it into the thermal calculation if the breaker is in a sealed or compact panel. The 138 mm width is the 3-pole footprint; verify the existing busbar or lug spacing against that dimension before committing the panel layout. The ETU320 release is electronic, not thermal-magnetic, so it offers better accuracy and adjustable trip curves. No communication function or phase-failure detection is built into this variant.","metaTitle":"Siemens 3VA2340-7HL32-0KA0 SENTRON MCCB, 400 A, 3-Pole, Line","metaDescription":"Siemens 3VA2340-7HL32-0KA0 SENTRON molded case circuit breaker, 400 A continuous, 3-pole, line protection with ETU320 release and shunt trip. Rated 330 kA at 240 V. Active producti","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":"No","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"96 W","Auxiliary contact version":"Without","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":"3VA2340-7HL32-0AA0","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","Design of the overcurrent release":"ETU320","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.":"600 A","Adjustable response value current / lr min.":"160 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"0","Protective function of the overcurrent release":"LI","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=136240&mlfb=3VA2340-7HL32-0KA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA2340-7HL32-0KA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA2340-7HL32-0KA0","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/3VA2340-7HL32-0KA0 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}}